Vacuum circuit-breaker 3AE6 SION · vacuum circuit-breaker is to be transported again. Do not reuse severed tensioning belts or plastic wraps. Pack the vacuum circuit-breaker in reverse

© Siemens AG 2016. All rights reserved.

SION Lateral

Vacuum circuit-breaker12 kV – 24 kV12.5 kA – 25 kA

OPERATING INSTRUCTIONS

Order No.: 9229 0020 176 0-Ordered from: EM LP IEC PRM MVPAG 09.2016 en

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For your safety

Signal terms anddefinitions

Hazards are classified in accordance with ISO 3864-2 using the following keywords:

• DANGER, WARNING, or CAUTION, where there is a risk of personal injury• NOTE, where there is a risk of material damage.

Hazards are classified and indicated in the operating instructions and on the vacuumcircuit-breaker as follows:

Qualified personnel For the purpose of these operating instructions or the warning notices on the vacu-um circuit-breaker, qualified personnel are persons who are familiar with the trans-port, storage, set-up, assembly, commissioning, operation and maintenance of theproduct and who have qualifications relevant to their work, e.g.:

• Training and instruction, or authorisation to energise, de-energise, clear, earthand tag circuits and equipment in accordance with established safety practices.

• Training or instruction in the proper care and use of protective equipment inaccordance with established safety practices.

• Training in first aid.Product liability

DANGER

Indicates an imminently hazardous situation.

If the hazard is not avoided, it will result in death or serious injury.

WARNINGIndicates a potentially hazardous situation.

If the hazardous situation is not avoided, it could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation.

If the hazardous situation is not avoided, it could result in minor or moderate injury.

NoteIndicates a potentially harmful situation.

If the harmful situation is not avoided, the product or an item in its vicinity can sustain damage.

NoteProduct liability claims are upheld only if the replacement of the purchased spare parts is performed by personnel that have been trained and certified by Siemens.

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Table of contents

For your safety ................................................................................................................................................... 2

List of abbreviations ............................................................................................................................................ 4

Transport, storage and packing .................................................................................................................. 5

Transport ............................................................................................................................................................. 5Unpacking ........................................................................................................................................................... 6Reuse of transport unit ........................................................................................................................................ 9Storage ............................................................................................................................................................... 9

General information ....................................................................................................................................... 11

Areas of application .......................................................................................................................................... 11Standards .......................................................................................................................................................... 12Type approval as per the German X-Ray Ordinance ........................................................................................ 12Scope of delivery .............................................................................................................................................. 12

Description ........................................................................................................................................................ 13

Design ............................................................................................................................................................... 13Locking mechanisms ........................................................................................................................................ 25Rating plate ....................................................................................................................................................... 27Technical data ................................................................................................................................................... 27Ambient conditions ............................................................................................................................................ 28Installation altitudes .......................................................................................................................................... 28Switching times ................................................................................................................................................. 29Circuit diagrams ................................................................................................................................................ 30

Installation ......................................................................................................................................................... 35

Attachment in the switching cubicle .................................................................................................................. 36Earthing ............................................................................................................................................................. 39Connecting low-voltage ..................................................................................................................................... 39Electrical connection of the main conductors .................................................................................................... 42

Operation ............................................................................................................................................................ 45

Commissioning ................................................................................................................................................. 46First closing operation ....................................................................................................................................... 47Closing .............................................................................................................................................................. 48Opening ............................................................................................................................................................ 49

Maintenance ...................................................................................................................................................... 51

Maintenance and servicing ............................................................................................................................... 51Service life of the vacuum interrupters .............................................................................................................. 52Accessories and spare parts ............................................................................................................................. 52Manufacturer's product liability .......................................................................................................................... 53Disposal ............................................................................................................................................................ 53Service .............................................................................................................................................................. 53

Index ..................................................................................................................................................................... 55

Central legend .................................................................................................................................................. 57

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List of abbreviations

CO Close-Open

DIN Deutsches Institut für Normung (German Institute for Standardisation)

IEC International Electrotechnical Commission

NC Normally closed contact

NO Normally open contact

O Open

VDE Verband Deutscher Elektrotechniker (Association of German Electrical Engineers)

Transport, storage and packing

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Transport

Transport weight Refer to the delivery documents for the weight of the transport unit.

Place the transport unit on a level, non-slip and pressure-resistant surface for inter-mediate storage.

Transport vacuum circuit-breaker to the installation site or storage location in its orig-inal transport unit.

Transporting with crane or fork lift

WARNINGHeavy transport weight

Transport unit may fall and fail and sling gear may break.

Use lifting gear, transport and sling gear suited to the requirements and load-car-rying capacity. Observe transport symbols.

NoteObserve stacking height

For transport, no more than 3 identical transport units may be stacked on top ofeach other.

Observe loads specified on the transport unit.

NoteSecure load

For transport, secure the load in such a way that the transport unit is not at risk.

Fig. 1 Transporting the pallet with carton


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Transporting with packing Transport the transport unit to the installation site or storage location• with a fork lift or • with sling gear suspended from a crane

- at an angle of twist of approx. 60° or - with a spreader bar.

After receipt of delivery:

Checking the transportunit

• Check the transport unit for damage.• Major damage must be documented photographically.• Ensure that any damage to the transport unit is confirmed by the transport com-

pany in writing

UnpackingWorking equipment Required tools:

- Knife/scissors- Lifting equipment with lifting gear- Pliers or lever.

CAUTIONRisk of injury from sharp edges!

Fasteners may break and have sharp edges.

Always use a suitable tool to lever out fasteners.

NoteDo not cut open or damage the carton, since it is designed to be reused andbecause of the belt straps located underneath.

Belt straps could be severed on the pallet floor when cutting open the carton.

The vacuum circuit-breaker is attached to the pallet with belt straps. It is not per-mitted to transport the vacuum circuit-breaker on the pallet without using beltstraps (see Fig. 3 to Fig. 4).

NoteRisk of tipping over due to shift in centre of gravity!

Vacuum circuit-breakers with mounted contact arms may tip onto the contact sys-tem if not fixed.

Before undoing the belt straps, ensure that the vacuum circuit-breaker is posi-tioned safely and hook sling gear to the points marked with crane hooks.


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Opening the transport unit • Place the transport unit on a level, non-slip and pressure-resistant surface.• Remove lifting gear or transport means.• Remove plastic wrap.• Lever out fasteners from the carton and lift off carton (see Fig. 2).

• Remove film from the vacuum circuit-breaker.• In the case of overseas packaging, push the lower film onto the pallet floor.• Check that the delivery is complete.• Check vacuum circuit-breaker for damage.

Fig. 2 Removing the fixings from the carton

NoteDo not use the vacuum circuit-breaker in case of damage such as breaks, cracks,flaking, bent metal parts, damaged plug-in contacts, tears or bare cables.

Send it back in its original transport unit (see “Reuse of transport unit”, page 9).

Fig. 3 Example - two vacuum circuit-breakers Fig. 4 Example - one vacuum circuit-breaker


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Transport to theinstallation site

• Remove all tensioning belts and bits of fastening wood.• Remove accessory pack and store safely in the packaging for later installation.

NoteMaterial damage due to incorrect mounting of sling gear!

Using chains or steel ropes will damage the pole shells. Use only ropes, hosesheaths or belts.

Only use the lifting eyes for sling gear.

1) Diameter of the hook cross-section max. 19 mm

2) Opening width of the hook min. 18 mm

• Hang sling gear only into the lifting eyes.• Adapt the length of the belts so that the belts are

flush with the pole shells during transport. The poleshells serve as stabilisation for the vertical transportposition.

• Transport to installation site or leave suspendedfrom crane for further work steps.

Fig. 5 Transporting

NoteKeep accessory pack on hand for installation.


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Reuse of transport unitReusing the transport unit The pallet and the carton as well as most of the components can be reused if the

vacuum circuit-breaker is to be transported again.

Do not reuse severed tensioning belts or plastic wraps.

Pack the vacuum circuit-breaker in reverse order:

• Attach the vacuum circuit-breaker safely to the pallet using the appropriatetools.

• Cover with film and seal with adhesive tape.• Attach accessory pack.• Close carton securely.• Before returning to the factory, ask the responsible Siemens representative for a

returned goods number (see also “Service”, on page 53).• When returning a vacuum circuit-breaker, always specify the type and serial

number (see “Rating plate”, on page 27).

Storage

NoteStore the vacuum circuit-breaker in the following condition:

• OPEN switching position

• Closing spring discharged

NoteRisk of corrosion damage if stored improperly!

If the storage conditions listed below are met, the vacuum circuit-breaker can bestored for up to a year in its transport unit.

If the storage conditions are not met, the vacuum circuit-breaker cannot be storedin the transport unit for longer than 6 months.

If storage for more than one year is planned, unpack the vacuum circuit-breakerfrom the transport unit. Further storage may necessitate fresh corrosion protec-tion, and it must be ensured that the vacuum circuit-breaker cannot be damaged.

Storage room Transport unit Storage time

Temperature range

Comment Number of units per stack

Closed, dry, well ventilated and as free from dust as possible, with a rela-tive humidity of less than 60 %.

Unopenedmax. 6 months

-40 °C to +55 °C — max. 4

Unopenedmax. 1 year

-5 °C to +40 °C — max. 4

OpenMore than 1 year

-5 °C to +40 °Cwith new corro-sion protection if necessary

—


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Blank page

General information

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General information

Smooth and safe operation of this device requires proper transport, professionalstorage, set-up and installation, as well as careful operation and maintenance.

The basic version and all listed configurations of the vacuum circuit-breakers aretype-tested devices as per IEC.

Areas of applicationVacuum circuit-breakers SION® are 3-pole interior circuit-breakers for a rated volt-age range of 12 kV - 24 kV.

Under normal operating conditions the vacuum circuit-breaker (as per IEC 62271-1and VDE 0671-1) is maintenance-free up to 10 000 cycles.

Intended use Vacuum circuit-breakers SION® are suitable for switching any type of alternatingcurrent circuits under normal operating conditions, such as:

• Overhead lines• Cables • Transformers • Capacitors • Motors

Vacuum circuit-breakers SION® operate in continuous, periodic and short-term op-eration.

WARNINGDangerous electrical voltage and mechanical movements

When electrical devices are operated, certain parts are inevitably live underdangerous voltage, and mechanical parts may move very quickly, alsowhen remotely controlled.

If the warnings are not observed, serious injury or material damage may be theresult.

Only personnel with the relevant qualifications may work on or in the vicinity ofthis device. These personnel must be familiar with all warnings and servicing ac-tivities specified in these operating instructions.

NoteIn the event of subsequent attachments or fittings, e.g. locking parts in connectionwith switchgear, ensure that

• fast moving parts are not additionally loaded with masses or forces and • additional parts have sufficient clearance, in particular, from moving and live

parts.

If vacuum circuit-breakers are to be equipped with additional functions by the cus-tomer, we recommend consulting the factory, since tried and tested solutions arefrequently available (see also “Additional equipment”, on page 16).

NoteThe images shown are examples; not all the variants of the vacuum circuit-break-er are shown here.

General information

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StandardsThe vacuum circuit-breakers SION® comply with the regulations:

• IEC 62271-1 and• IEC 62271-100.

All vacuum circuit-breakers SION® comply with the specifications for C2, E2, M2and S1-class circuit-breakers as per IEC 62271-100.

Country- and standard-specific deviations from the standards mentioned must beobserved.

Type approval as per the German X-Ray OrdinanceThe vacuum interrupters installed in the switching devices are type-approved assources of interference radiation according to § 8 of the German X-Ray Ordinanceand they meet the requirements for sources of parasitic X-ray emitters according toAnnex 2 No. 5 of the current German X-Ray Ordinance up to the rated voltage de-fined in the approval certificate.

Vacuum interrupters with the type identifier can be operated by the owner of theswitchgear without licensing or notification. Keep a printed copy of the certificate ina suitable central location.

Scope of deliveryDelivery includes:• Vacuum circuit-breaker SION®

• Hand crank for circuit-breaker 3AX1530-4B (optional)• Accessory pack for plug top with fasteners (optional)

- with 24-pole plug or- with 64-pole plug

• Accessory pack with 10-pole plug and Faston flat blade connector with insulat-ing sleeve (optional for 20-pole connector strip)

• Operating instructions and unpacking instructions• Circuit-breaker-specific circuit diagrams

Description

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Description

DesignThe images shown are examples; not all the variants of the vacuum circuit-breakerare shown here.

Fig. 6 3AE6, 12 kV example

Fig. 7 3AE6, 24 kV example

20.1 Cover

21 Rating plate

32 Low-voltage plug connector (-X0),

(optional)

42 Pole head

43 Vacuum interrupter

44 Pole contact plate

45 Insulating operating rod

46 Pole shell

59 Locking mechanism (optional)

61 Fixing holes for fixed installation or roll


63 Bearing frame with kinematics

Description

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Contact system in the vacuum interrupters

A slight change in the contact stroke that occurs over the entire useful life has noeffect on the function of the vacuum circuit-breaker.

Operating mechanism

The operating mechanism contains all the electrical and mechanical components re-quired to close or open the vacuum circuit-breaker. Insulating operating rodstransfer the switching movements to the vacuum interrupters.

The operating mechanism is closed with a removable cover (20.1).

Operating and indicator elements

There are openings in the cover (20.1) for the operating and indicator elements.

Functions The CLOSE pushbutton (56.1) is used to close the vacuum circuit-breaker. The mo-tor immediately charges the closing spring. If the supply voltage for the motor fails,the closing spring can be charged with a hand crank. There is an opening for this inthe cover (20.1), behind which you will find the hand crank coupling (57.2) of thegear unit.

Indicators The charged state of the springs is indicated via the spring state indicator (55.1). Theposition indicator (56.3) shows the CLOSED or OPEN state. The operations counter(58) indicates the number of operating cycles. A operating cycle consists of oneclosing and one opening.

Fig. 8 Control panel

20.1 Cover

55.1 Spring state indicator

56.1 CLOSE pushbutton

56.2 OPEN pushbutton

56.3 Position indicator CLOSED-OPEN

57.2 Hand crank coupling

58 Operations counter

Description

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Secondary equipment

Fig. 9 Open operating mechanism

31 Auxiliary switch (-S1)

32 Low-voltage plug connector (-X0), (optional)

33.1 Connector strip (-X1.3 and -X1.4)

33.3 Plug (-X1) only when ordering the 20-pole connector strip

34 Anti-pumping device (-K1), contactor relay (-K1)

51.1 1st shunt release (-Y1)

51.2 2nd release (-Y2)

52 Closing solenoid (-Y9)

53 Motor (-M1), charging the closing spring

54.1 Position switch (-S12), prevents electrical closing in

mechanical locking device (not shown)

54.2 Position switch (-S21), motor control

54.3 Position switch (-S3), control for (-K1)

54.4 Position switch (-S4), message “Closing spring charged”

54.6 Position switch (-S6), circuit-breaker tripping signal (not

shown)

55 Closing spring


56.3 Position indicator CLOSED-OPEN

57 Gear unit



59.4 Heater (-R01), condensation water protection (optional)

59.6 Resistor (-R1) for undervoltage release (-Y7), (optional)

Description

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EquipmentBasic equipment The basic equipment of the vacuum circuit-breaker SION® contains the following:

Additional equipment Each vacuum circuit-breaker SION® can also be equipped with the following equip-ment:

In addition to the serial shunt release (Y1), the vacuum circuit-breaker can beequipped with no more than one release of type 3AX11... For the permitted possiblecombinations of the additional equipment as well as special designs, refer to cata-logue HG11 or contact the relevant Siemens representative.

Motor 3AY1411, for charging the switch-on springs (-M1)

Position switch 3AX4206-0A, for motor control (-S21)

Anti-pumping device

• electrical 3AY1420 (-K1)

• mechanical

Position switch 3AX4206-0A, control of the anti-pumping device(-K1)

(-S3)

Closing solenoid 3AX1410 (-Y9)

Shunt release 3AX1410 (-Y1)

Auxiliary switch optional (-S1)

• 6NO + 6NC (3SV9273)

• 12NO + 12NC (3SV9274)

Position switch 3AX4206-0A, for signal “Closing spring charged” (-S4)

Low-voltage interface 3AX1134 optional (-X0)

• Plug connector with sleeve housing 64-pole

• Plug connector with sleeve housing 24-pole

• Connector strip 20-pole (-X1.3 and -X1.4)

• Plug Faston flat connector (only with 20-pole connector strip) (-X1)

Operations counter

Mechanical manual closing and opening

Shunt release 3AX1101 (-Y2)

Transformer operated release 3AX1102 (-Y4, -Y5)

Transformer operated release 3AX1104 (0.1 Ws) (-Y6)

Undervoltage release 3AX1103 (-Y7)

• with resistor for undervoltage release (-Y7) (-R1)

Heater (condensation water protection) (-R01)

Circuit-breaker tripping signal 3AX4206-0A (-S6)

Position switch 3AX4206-0A, prevents electrical closing if there is a mechanical locking mechanism

(-S12)

PG fitting 3AX1458-0L

Description

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Motor (-M1)

Fig. 11 Power consumption of motor

*) The operator's supply voltage may deviate from the rated supply voltage of the vacuum circuit-

breaker by -15 % to +10 %.

1) 50/60 Hz.

2) ± 50 W (empirically determined values)

Fig. 12 Recommendation for motor protection device

*) The operator's supply voltage may deviate from the rated supply voltage of the vacuum circuit-

breaker by -15 % to +10 %.

**) Built-in automatic circuit-breaker with C characteristic

1) 50/60 Hz.

After the supply voltage is applied and if the closingspring is discharged, the motor starts immediately and isautomatically deactivated internally after charging hastaken place. For power consumption see table Fig. 11.

In the short charging time, the motor operates in theoverload range. See Fig. 12 for the rated current for therequired motor short-circuit protection.

NoteThe motor protection devices are not included in the de-livery of the vacuum circuit-breaker and must be orderedseparately.

Fig. 10 Motor (53)

Rated supply voltage U*) DC AC1) DC AC1) DC DC AC1) DC AC1)

V 24 30 48 60 110 110 120 120 125 220 230 240 240

2) W/VA 140 180 110 130 100 170 110 210 120 110 200 130 200

DC DC DC DC AC1) DC AC1)

Rated supply voltage U*) V 24 48 60 110 110 220 230

Rated current of the protective device I**) A 2 1 1 0.5 0.315 0.315 0.250

Description

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Anti-pumping device (-K1), contactor relay (-K1)

Closing solenoid (-Y9)

If simultaneous electrical CLOSE and OPEN commandsare continuously applied to the vacuum circuit-breaker, itreturns to the open position after being closed.

The function of the anti-pumping device means that thevacuum circuit-breaker remains there until the ON com-mand is re-entered.

This prevents continuous closing and opening (pump-ing).

Fig. 13 Anti-pumping device (34)

The closing solenoid (-Y9) unlatches the charged closingspring and closes the vacuum circuit-breaker electrically.It is available for DC or AC voltage.

The closing solenoid (-Y9) is not designed for continuousoperation and is terminated within the circuit-breaker viathe auxiliary switch (-S1) at the factory.

The operator's supply voltage may deviate from the rat-ed supply voltage of the vacuum circuit-breaker by -15 %to +10 %.

The closing solenoid (-Y9) can be operated using AC orDC voltage and is protected against overvoltage.

Power consumption300 to 370 W / VA (3AY1410)

Fig. 14 Closing solenoid (52)

Description

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1st shunt release (-Y1)

In the case of the 1st shunt release (-Y1), the electricallyfed tripping pulse is passed to the "OPEN" latch bymeans of a directly acting magnet armature, thus open-ing the vacuum circuit-breaker.

The 1st shunt release (-Y1) is not designed for continu-ous operation and is terminated within the circuit-breakervia the auxiliary switch (-S1) at the factory.

The operator's supply voltage may deviate from the rat-ed supply voltage of the vacuum circuit-breaker by -30 %to +10 % in the event of DC voltage and by -15 % to+10 % in the event of AC voltage.

The 1st shunt release (-Y1) can be operated using AC orDC voltage and is protected against overvoltage.

Power consumption300 W / VA (3AY1410)

Fig. 15 1st shunt release (51.1)

Description

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Auxiliary switch (-S1)

Auxiliary switch (-S1) is available for delivery in two versions: With 6 normally opencontacts or 12 normally closed contacts each. Contacts available on the customer'spremises - see circuit diagram supplied.

Power consumption

Breaking capacity

Fig. 17 Breaking capacity of auxiliary switch (-S1) 3SV92

Fig. 16 Auxiliary switch (31)

Rated insulation voltage: 250 V AC/DC

Insulation group: C as per VDE 0110

Continuous current: 10 A

Closing capacity: 50 A

Rated operating voltage Rated normal current

up to U (V) I (A)

Ohmic load

Inductive load (T = 20 ms)

230 AC 10 10

24 DC 10 10

48 DC 10 9

60 DC 9 7

110 DC 5 4

220 DC 2.5 2

Description

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Position switch 3AX4206-0A

Circuit-breaker tripping signal (-S6) 3AX4206-0A

Position switch (-S21) switches the motor off after charg-ing the switch-on spring.

Position switches (-S3) and (-S4) open when the closingspring is charged.

Fig. 18 Position switch (54.2-4)

The position switch (-S6) makes contact briefly when thevacuum circuit-breaker is opened by means of an elec-trical release.

This contact can be used for a signal.

Fig. 19 Circuit-breaker tripping signal (54.6)

Description

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Low-voltage interface (-X0), 64-pin 3AX1134

A further shunt release, transformer-operated release or undervoltage release canbe installed as a 2nd release.

2nd shunt release (-Y2) 3AX1101

For connection of the control line, the standard versionof the vacuum circuit-breakers is equipped with a 64-pinlow-voltage interface (-X0).

The 64-pole plug for the external terminal is suitable forcrimp termination of control lines with a nominal cross-section of 1.5 mm2.

Fig. 20 Low-voltage interface (-X0) (32)

The second shunt release (-Y2) is installed whenevermore than one shunt release is needed.

In this version, the electrical “open” command is passedby means of a magnet armature to the “OPEN” latch byrelease of an energy storage mechanism, thus openingthe vacuum circuit-breaker. This opening solenoid is notdesigned for continuous operation. Any necessary varis-tors and rectifiers are integrated in the release.

Power consumption 10 W / VA

Fig. 21 2nd shunt release (51.2)

Description

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Transformer-operated release (-Y4), (-Y5) 3AX1102, (-Y6) 3AX1104

The transformer-operated releases (-Y4), (-Y5) or (-Y6)consist of an energy storage mechanism, an unlatchingfixture and an electromagnetic system. If the tripping cur-rent is exceeded (90 % of the transformer-operated re-lease's rated current), the stored energy mechanism isunlatched, thus initiating opening of the vacuum circuit-breaker.

For use of the transformer-operated releases, matchingtransformers are also needed for matching, in addition tothe main current transformers.

Power consumption for 0.5 A and 1 A ≤ 6 VA at ≤ 90 %of the transformer-operated release's rated current andwith open armature.


Fig. 22 Transformer-operated releases (51.3)

Description

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Undervoltage release (-Y7) 3AX1103

The undervoltage release (-Y7) has an electromagnet system that is always livewhen the vacuum circuit-breaker is in the closed state. If the voltage drops below acertain value, the undervoltage release (-Y7) is unlatched, thus initiating opening ofthe vacuum circuit-breaker via the energy storage mechanism.

Random tripping of the undervoltage release (-Y7) is generally performed by a nor-mally closed contact in the tripping circuit, but can also be done with the aid of a nor-mally open contact by short-circuiting the solenoid coil. If this release method isused, the solenoid coil's short-circuit current is limited by the built-in resistor.

The undervoltage release (-Y7) can also be connected to voltage transformers.

The undervoltage release (-Y7) automatically trips the vacuum circuit-breaker if therated supply voltage drops to an inadmissible value. Any necessary varistors andrectifiers are integrated in the release.


NoteThe undervoltage release (-Y7) may only be operated with the supplied series re-sistor (-R1).

NoteFor circuits (mechanical or electrical), the undervoltage release 3AX1103… mustbe connected to control voltage, as otherwise a switch-on is not possible (see“Removing the transport securing device from the undervoltage release”,page 41).

Fig. 23 Undervoltage release (51.7) Fig. 24 Typical circuit for connection of the undervolt-age release (-Y7)

A B(-R1) Resistor

(-S1) Auxiliary switch

(-Y7) Undervoltage

release

Description

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Heater (-R01) for condensation water protection (optional)

Locking mechanismsTo lock vacuum circuit-breakers as a function of the switching position, the springcharge mechanisms of the vacuum circuit-breaker can be equipped with a lockingmechanism. Mechanical locking mechanism (optional)

A sensing and actuation component (b) on the system side detects the operating po-sition (CLOSED/OPEN) of the vacuum circuit-breaker.

CLOSED switchingposition

If the vacuum circuit-breaker is closed, actuation of the system's sensing and actu-ation component (b) is prevented.

OPEN switching position If the vacuum circuit-breaker is open, the sensing and actuation component (b) onthe system side actuates, via the stroke (a), the vacuum circuit-breaker's mechani-cal locking device and reliably blocks closing of the vacuum circuit-breaker.

WARNINGRisk of burns!

Touching the hot heater will cause burns.

Do not touch the heater before it has cooled off.

The heater limits condensation and corrosion of the vac-uum circuit-breaker.

To this end, the heater has to be connected to the supplyvoltage (see circuit diagram included with the delivery).

The surface temperature of the heater is approx. 180 °C.

Power consumption50 W, rated voltage 230 V AC

Fig. 25 Heater (59.4.)

Description

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.

a Stroke in the OPEN switching position (min. 5 mm, max. 10 mm)

b Sensing or actuation component (cross-section max. 14 mm x 3 mm, actuation force min. 50 N,

max. 450 N)

c + d See dimensional drawing

e CLOSED switching position spacing

X-X Sectional view

Y View from above

Z View from below

The installation dimensions (c+d) for the sensing or actuation component (b) are in-cluded in the dimensional drawing supplied..

Fig. 26 Mechanical lock

WARNINGRisk of crushing!

Mechanical parts can move quickly, even if they are remote-controlled. Contactwith mechanical parts or parts under spring charge can lead to crushing of bodyparts.

• Do not reach into openings.• Do not touch pole assemblies or circuit-breaker shaft.• Secure the vacuum circuit-breaker from opening during adjustment work in

the CLOSED switching position.

Description

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Rating plate

Technical data

Fig. 28 Technical data (excerpt from the catalogue)

Dimensions and weights

The dimensions of the vacuum circuit-breaker can be taken from the relevant dimen-sional drawing. If needed, they can be obtained from your Siemens representative.The weight is indicated on the vacuum circuit-breaker rating plate (see Fig. 27) orrefer to the associated dimensional drawing.

Fig. 27 Example - rating plate

1 Manufacturer

2 Year of manufacture

3 Rated normal current Ir4 Rated short-circuit duration tk5 Mass m6 Rated operating sequence

7 Classification as per standard

8 Rated power frequency withstand voltage Ud

9 Rated lightning impulse withstand

voltage Up

10 Rated short-circuit breaking current Isc

11 Rated voltage Ur

11 Rated frequency fr12 Factory number

13 Type designation

14 Quality control seal

Made in Germany

Q600806Kontr

0020

-26_

en

kV,

Rated operating sequence: O - 0.3 s - CO - 3 min - CO

No. S 3AE/00000023Type 3AE6115-2

Classification to IEC 62271-100: E2, C2, M2

Ur 12 50/60 Hz

Ud/Up 28/75Isc 31.5 kA

Year of manufact. 2016Ir 1250 Atk 3 sm 80 kg

1

2345

67

14

8/910111213

Rated voltage* Ur kV 12 24

Rated normal current Ir A 800 - 1500

Rated lightning impulse withstand voltage (peak value) Up

kV 75 125

Rated power frequency withstand voltage (effective value) Ud

kV 28 (42**) 50 (65**)

Rated short-circuit breaking current Isc kA 12.5 - 25

Distance between pole centres mm 150, 210, 230, 250, 300 210, 230, 250, 300

Distance between lower and the upper terminal mm 205 273.5

Rated operating sequence A, B, C

A O - 3 min - CO - 3 min - CO

B O - 0.3 s - CO - 3 min - CO; standard rated operating sequence

C O - 0.3 s - CO - 15 s - CO

* In the event of a rated frequency fr of 50/60 Hz

** On request

Description

28 9229 0020 176 0-2017-01-05

Ambient conditions

Installation altitudesInsulating capacity The insulation capacity of insulation in air declines with rising altitude due to the low-

er air density. As per IEC 62271-1, the rated lightning impulse voltage values givenin Fig. 28 are valid up to an installation altitude of 1000 m above sea level.

Above an altitude of 1000 m, the insulation level must be corrected as shown inFig. 30:

Occasional condensation may occur under these ambi-ent conditions.

Vacuum circuit-breakers SION® are suitable for use inthe following climate classes according to IEC 60721,part 3-3:

Class

• Climatic ambient conditions: 3K41)

• Biological ambient conditions: 3B1

• Mechanical ambient conditions: 3M2

• Chemically active substances: 3C22)

• Mechanically active substances: 3S23)

1) Minimum temperature limit: -5 °C (with addition A40 to -25 °C)

2) Without occurrence of salt fog and simultaneous condensation

3) Restriction: Clean insulation parts

4) Average value, measured over 24 hours

5) Average value, measured over 1 month

Fig. 29 Ambient conditions

U ≥ U0 • Ka

U Rated withstand voltage U under standard reference atmosphere

U0 Required rated withstand voltage for the installation location

Ka Altitude correction factor

Ka = em • (H - 1000)/8150

Calculating the altitude correction factor Ka:H = Installation altitude in metersm = 1 for AC voltage, lightning impulse withstand volt-

age (between phases, phase-ground, applied lon-gitudinally)

Example

For a required rated withstand voltage of 75 kV at an al-titude of 2500 m, an insulation level of at least 90 kV un-der standard reference atmosphere conditions isrequired:

90 kV ≥ 75 kV • e1 • (2500 - 1000)/8150

≈ 75 kV • 1.2Fig. 30 Altitude correction factor Ka

Description

9229 0020 176 0- 292017-01-05

Switching times

Fig. 31 Switching times

Closing time = period between starting (command) of the closing movement andthe moment of contact touch in all poles.

Opening time = period between starting (command) of the opening movement andopening of the last pole.

Arcing time = period from the start of the first arc to extinction of the arcs in all poles.

Break time = period between starting (command) of the opening movement and ex-tinction of the arc in the pole extinct last (= opening time + arcing time).

Close / Open time = period in an OPEN/CLOSE cycle between the moment of con-tact touch in the first pole during closing and the time when contact touch has beencancelled in all poles during subsequent opening.

Dead time = period from the end of the current flow in all poles up to the start of thecurrent flow in the first pole.

Closing time < 60 ms

Opening time

1st shunt release (-Y1) < 60 ms

2nd release (-Y2, -Y4, -Y6, -Y7) < 45 ms

Arcing time < 15 ms

Break time



Dead time 300 ms

Close/Open time



Minimum command duration

Closing solenoid (-Y9) 45 ms

1st shunt release (-Y1) 40 ms

2nd release (-Y2, -Y4, -Y6, -Y7) 20 ms

Shortest pulse time for circuit-breaker tripping signal (S6)

1st shunt release (-Y1) > 10 ms

2nd release (-Y2, -Y4, -Y6, -Y7) > 6 ms

Charging time if actuated electrically (-M1) < 15 s

Synchronous operation error between the poles ≤ 2 ms

Description

30 9229 0020 176 0-2017-01-05

Circuit diagramsThe circuit diagrams show deliverable components with their wiring options.

Fig. 32 to Fig. 36 show non-binding examples of vacuum circuit-breakers.

The circuit diagrams for the vacuum circuit-breaker are compiled depending on yourorder.

Mechanical manual closing and electrical closing

Fig. 32 Sample circuit diagram 64-pole plug connector (part 1) of the vacuum cir-cuit-breaker

This legend is also valid for the following circuit diagrams.

-Y1 -Y2-Y4, -Y5-Y6-Y7

“OPEN” release

extended auxiliary switch

HA Manual opening

HE Manual closing

-K1 Anti-pumping device, contactor relay

-M1 Motor

P Energy storage mechanism

-R1 Resistor

-S1 Auxiliary switch

-S12 Position switch (prevents electrical switching if there is

a mechanical locking mechanism)

-S21 Position switch (switches off the motor after charging)

-S3 Position switch (opens when closing spring is charged)

-S4 Position switch (message “Closing spring charged”)

-S6 Position switch (for circuit-breaker tripping signal)

-X0 Low-voltage interface

-Y1 1st shunt release

-Y2 2nd shunt release

-Y4 Transformer-operated release

-Y5, -Y7 Transformer-operated release

-Y6 Transformer-operated release

-Y7 Undervoltage release

-Y9 Closing solenoid

Description

9229 0020 176 0- 312017-01-05

The unassigned auxiliary switch terminals are wired up with the 64-pole plug bottomas shown.

Fig. 33 Example - auxiliary switch terminals

Fig. 34 Sample switching operation for connection of the undervoltage release (-Y7)

9862-75

Normal auxiliary switch Extended auxiliary switch

No wiring required if

a) 2nd shunt release (-Y2) available

b) Undervoltage release (-Y7) available

a) b)

9862-74

System wiring Tripping via NO con-

tact

Tripping via

NC contact

System wiring

Circuit-breaker wiring

Description

32 9229 0020 176 0-2017-01-05

1) Integrated varistor

2) Integrated rectifier for AC/DC ≥ 100 V

a) Motor winding for DC

b) Anti-pumping device

c) Heater 230 V AC

d) Circuit-breaker tripping signal


a) b) c) d)

Description

9229 0020 176 0- 332017-01-05

1) Integrated varistor

2) Integrated rectifier for AC/DC ≥ 100 V

a) 1st shunt release

b) 2nd shunt release

c) 1st transformer-operated release

d) Low energy release


a) b) c) d)

Description

34 9229 0020 176 0-2017-01-05

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Installation

9229 0020 176 0- 352017-01-05

Installation

DANGER

High-voltage - danger to life

Touching live parts causes an electric shock.• Do not touch live parts!• When work is performed on the switchgear, it must be de-energised and

earthed!• The work described in the following sections must only be performed when

the switchgear has been de-energised:- Take safety measures to prevent switching back on!- Observe industrial safety regulations!- Ensure that the vacuum circuit-breaker is installed and commissioned

only by qualified personnel who are familiar with the operating instructionsand observe the warning notices.

WARNINGRisk of injury due to wrong transport means!The use of incorrect transport means can lead to the vacuum circuit-breakerfalling and cause injury to persons.• Observe weight.• Use means of transport suited to the requirements and load-carrying

capacity.• The vacuum circuit-breaker must not fall over.• Sharp edges may cause injury.




CAUTION

Risk of crushing from rotating and spring-loaded parts

Rotating and spring-loaded parts can move quickly in the event of manual releaseor remote tripping of the vacuum circuit-breaker. Limbs can be crushed if theycome into contact with rotating and spring-loaded parts.

Avoid touching openly accessible rotating and spring-loaded parts such as driveshafts.

Installation

36 9229 0020 176 0-2017-01-05

Attachment in the switching cubicleThe vacuum circuit-breaker is delivered in the OPEN switching position and with theclosing spring discharged. Before installing the vacuum circuit-breaker remove thetransport aids (see“Unpacking” on page 6).

Checking data Before installing the vacuum circuit-breaker in a switching cubicle, check the detailson the rating plate (see “Rating plate” on page 27) in order to avoid confusion.

Mounting position The vacuum circuit-breaker SION® can only be installed vertically (to the vacuuminterrupter), as an indoor withdrawable section and as an indoor fixed installation.

NoteFor preliminary work, the vacuum circuit-breaker must be• secured against falling over,• placed onto a suitable base or • prepared for installation while suspended from a crane.

NoteMaterial damage due to incorrect operation!

If the vacuum circuit-breaker SION® is triggered manually with the cover removedand the mechanical locking device actuated, the operating mechanism of the vac-uum circuit-breaker will be irreversibly damaged. Any warranty claims are lost inthe event of such incorrect operation.

Use suitable means to prevent the vacuum circuit-breaker SION® from closing ifthe cover has been removed and the mechanical locking device has been actu-ated.

Fig. 37 Mounting position

Installation

9229 0020 176 0- 372017-01-05

Removing and mounting covers

Remove the covers to mount the fixing lugs.

Removing and mounting the cover

Removing • Pull off both the engaging hooks of the cover (20.1) simultaneously.• Swing cover (20.1) forward and then remove to the front and top.

Installation • Insert the cover (20.1) into the guide from the top; do not jam or swing it down.• Let both engaging hooks of the cover (20.1) fully engage.

Fig. 38 Removing the cover Fig. 39 Mounting the cover

Installation

38 9229 0020 176 0-2017-01-05

Mounting the PG fitting

The version with plug or terminal strip (without low-voltage plug) is supplied with aPG fitting and fasteners (in the accessories pack). The PG fitting serves to bundleand protect the cables coming from the low-voltage interface.

Mounting the fixed-mounted circuit-breaker on a horizontal plane

NoteSelf-tapping screws are suitable for single use only.

Fit the retaining plate of the PG fitting with the self-tap-ping screws (Torx screwdriver, size 20) and a tighteningtorque of 3 ±0.3 Nm.

For the wiring of the connector strip or terminal strip seepage 40.

Fig. 40 Example - mounting the PG fitting

There are a total of 4 fixing holes on the base plate forthe various installation types.

Use M10 screws – strength class 8.8 – for fastening. Thebinding dimension drawings are relevant.

Use 4 M10 screws to screw the fixed-mounted circuit-breaker onto the mounting surface from below. Tighten-ing torque 40 ±4 Nm (greased threads only).

Fig. 41 Mounting for fixed installation from below

Installation

9229 0020 176 0- 392017-01-05

Earthing

Connecting to earth Connect the vacuum circuit-breaker on the earth terminal (70) to the high-voltageprotective earth as specified (DIN EN 50341).

• Select the cross-section of the earth wire so that a current of 30 A, with a maxi-mum voltage drop of 3 V can be conducted to the provided earthing point (seeIEC 62271-200).

• Remove hexagon screw M12 with washers from the accessory pack, or ifmounted, completely unscrew from the earth terminal.

• Tighten the earth wire ring terminal with the M12 hexagon screw and washerson the earth terminal with 70 Nm.

Connecting low-voltageConnect the low-voltage connecting cables in the customer's switchgear in such away that safe operation as per the supplied circuit diagram is guaranteed.

NoteIf the vacuum circuit-breaker SION® is installed into an earthed metal frame andis connected permanently and electrically conductive, no separate earthing is re-quired.

Place serrated washers under the screw heads when fastening the vacuum cir-cuit-breaker in this case.

Fig. 42 Mounting earthing line on mechanism box Fig. 43 Mounting earthing line on main carrier

Installation

40 9229 0020 176 0-2017-01-05

Wiring the plug or terminal strip

• Remove cover or hood for the low-voltage interface(see “Removing and mounting covers” page 37).

• Insert flat-head screwdriver (size 0.5 mm x 3 mm)into the plug.

• Insulation-stripped connection wire (or with wire endferrule) with a cross-section

- Single-core from 1.5 mm2 to 2.5 mm2

- Insert finely stranded core from 1.5 mm2 to

2.5 mm2

• Remove flat-head screwdriver.

Fig. 44 Wiring the 20-pole connector strip (33.1)

-M1

-Y1

-Y2/-Y4/-Y6/-Y7*

-Y7*

-S4

-S6*

Internally wired

-Y9 Reference potential “Close”

Internally wired

Heater*

* only if ordered

Connecting the control lines for20-pole connector strip

-X1OPEN signal potential (-Y9; 24 V to240 V) (customer Faston flat plug sleevewith insulating sleeve in the accessorypack)

-X1.3, -X1.4Each as 10-pole plug (customer plug for -X1.3 and -X1.4 in the accessory pack)

Note: Terminal 5 of (-X1.4) reference po-tential of the OPEN signal (-Y9; 24 V to240 V)

Fig. 45 Wiring connector strip (-X1.3) and (-X1.4) at the customer site

Installation

9229 0020 176 0- 412017-01-05

Removing the transport securing device from the undervoltage release

Undervoltage release (-Y7)available?

The vacuum circuit-breaker with an undervoltage release (-Y7) 3AX1103 is suppliedwith a transport securing device.

• Remove the cover (see “Removing and mounting covers” page 37).• Shift the locking screw of the striker from position A to B (see instructions in

operating mechanism of the vacuum circuit-breaker or on the label of the under-voltage release).

• Mount the cover again in the reverse order (see “Removing and mounting cov-ers” page 37).

Fig. 46 Removing the transport securing device

BA

Installation

42 9229 0020 176 0-2017-01-05

Electrical connection of the main conductors

The busbars can be purchased from the Siemens Service Center.

Preparing contact surfaces

DANGER

High-voltage - danger to life

Checking the vacuum circuit-breaker in the switchbay with applied high voltage isallowed only after full functionality has been determined (see “Commissioning” onpage 46).

NoteGrease the busbars with Vaseline prior to installation.

Note• For screw-in depths for screws or threaded rods and • impact depths for spring pins or spiral spring pins, see table “Screw-in

depths”, Fig. 49.

NoteClean silver spray-plated and copper spray-plated contact areas with a cloth; donot brush.

Different connection materials (AI/CU) must not be cleaned with the same clean-ing tools.

Silver-plated parts must not be bolted to aluminium bars!

Fig. 47 Cleaning the contact surfaces Fig. 48 Cleaning the contact surfaces of the busbars

Installation

9229 0020 176 0- 432017-01-05

Carefully brush the contact surfaces of the busbar cross-wise with a steel brush untilthey are metallically bright, and wipe off any residue using a clean cloth.After cleaning, very lightly grease the bare contact areas with acid-free Vaseline(e.g. Shell-Vaseline 8420) and screw together immediately.

Screw-in depths in the upper and lower terminals

Fig. 49 Screw-in depths

Connecting the main conductor

Mounting busbars

Adjust the busbars in such a way that, before fastening, they lie flat easily and fit theholes on the contact surfaces of the upper and lower terminal.

Corresponding to the rated current strength, use M12 or M8 screws and nuts -strength class 8.8 - and the appropriate spring elements and washers for connectionof the busbars.

When tightening the screws, hold the nuts against the tightening torque with a suit-able screwdriver or socket wrench.

Rated voltage Ur kV 12 24

Rated short-circuit breaking current Isc kA 12.5 - 25

Rated normal current Ir A 800 - 1250

Terminal thread M12 2 x M8

Upper terminal (A) mm20 ±1

Lower terminal (B) mm

NoteFor vacuum circuit-breakers with connecting bars, it is recommended to use thestainless steel screws or non-magnetisable stainless steel screws included in theaccessory pack.

Fig. 50 Screw-in depths in the upper and lower terminals

Fig. 51 Installing busbars (angled). Example for 1 250 A

Installation

44 9229 0020 176 0-2017-01-05

Tightening torque for

- M12: 40 ±4 Nm- M8: 24 ±4 NmTightening torques apply to greased threads only.

Securing with a spiralspring pin

The busbars can be secured against twisting with a spiral spring pin according toISO 8748 or a spring pin according to ISO 8752 — 4 × X*) mm — N — C.

A drill hole Ø 4H11 must be provided in the busbar (see Fig 52, horizontal arrow).

See dimension drawings.

*) X = Length of the spring pin, depending on the cross-section of the busbar in mm

Fig. 52 Assembly with spiral spring pin. Example for 800 A, upper connection

Fig. 53 Installing busbars (angled) vertically. Example for 1 250 A

Operation

9229 0020 176 0- 452017-01-05

Operation

DANGER

High voltage - danger to life!

Touching live parts causes an electric shock.

• Do not touch live parts!• Ensure that the vacuum circuit-breaker is operated only by qualified person-

nel who are familiar with the operating instructions and who observe thewarning notices.

• Check through all of the items on the checklist and ensure correct functioningbefore commissioning!

CAUTION

Increased noise levels due to switching noise

Temporary noise levels above 85 dB (A) can cause damage to health.

Wear suitable ear protection.

Operation

46 9229 0020 176 0-2017-01-05

CommissioningBefore commissioning, check the following points to ensure that the vacuum circuit-breaker SION® is functioning faultlessly:

Checklist Notes

Does the information on the rating plate (see page 27) match the order data?

Ensure correct operating voltage.

If necessary, clean the vacuum circuit-breaker (details on this in section “Cleaning” on page 51).

Check that screw connections are tightened securely.

Check terminal strip plug connection is seated firmly.

If necessary, check and adjust the customer's devices.

Test switching without supply voltage

Charge the closing spring with the hand crank (see Fig. 55), then press the CLOSE pushbutton and, once closing has been performed, press the OPEN pushbutton.

Test switching with supply voltage

To perform test switching with the motor, switch on the supply voltage. The motor starts up immediately and charges the closing spring. Check the indicator for charge state of the closing spring (mechanically and elec-trically).

Electrically check through auxiliary switch S1 and position switch in both end positions – operate the vacuum circuit-breaker to do so.

Check functioning of the closing solenoid Y9 and all available shunt releases by operating them electrically.

If there is a 3AX1103 undervoltage release (Y7): Has the locking screw of the striker been shifted from position A to B (see “Removing the transport securing device from the undervoltage release” on page 41)?

If there is a mechanical locking mechanism: Check if correct function of mechanical locking is guaranteed as per IEC 62271-200.

WARNINGDo not commission the vacuum circuit-breaker if there are malfunctions.

If the malfunctions or the damage cannot be remedied, contact a sales represent-ative or Siemens Service and, if necessary, send back the vacuum circuit-breaker.

Operation

9229 0020 176 0- 472017-01-05

Position indicator and spring state indicator when charging the closing spring, closing and opening

* Spring only charged if motor voltage is applied

Fig. 54 Operating element indicators

First closing operation

If all functions have been checked and are OK, switch on the high voltage while ob-serving all of the safety regulations and operational requirements.

Charging the closing spring

If the supply voltage is applied, the closing spring is automatically charged by themotor.

Input Position indicator Spring state indicator

Chargingwith hand crank,with motor operat-ing mechanism

Closing“CLOSE”pushbutton,remote tripping

*

Opening“OPEN”pushbutton,remote tripping

NoteIf an undervoltage release 3AX1103… is fitted, it must be connected to controlvoltage for switching operations (mechanical or electrical), as otherwise closingis not possible.

WARNINGRisk of injury if hand cranks other than the original hand crank are used.

When the supply voltage is present, the motor immediately recharges the springafter a closing operation. If the hand crank does not have a slip coupling, the handcrank will also rotate.

To avoid injuries caused by the motor starting suddenly, the vacuum circuit-breaker must be charged only using the original hand crank.

Operation

48 9229 0020 176 0-2017-01-05

Hand crank If the supply voltage fails, the closing spring can be charged with a hand crank.

• To do this, fit the hand crank onto the hand crank coupling through the openingwith the adapter pushed forward and

• turn clockwise until the spring state indicator changes over:

The adapter of the hand crank is designed in such a way that the hand crank be-comes uncoupled when the motor supply voltage returns.

ClosingProvided there is no lock-out due to a mechanical locking device, send the closingcommand via the CLOSE pushbutton or the corresponding command element untilthe vacuum circuit-breaker is closed, and shows and signals the CLOSED switchingposition.

Change of the position indicator:

After closing and, if necessary, releasing the CLOSE pushbutton, the closing springis immediately automatically charged by the motor and the symbol for “Closingspring charged” becomes visible in the spring state indicator.

Change of the spring state indicator:

Discharged Charged

Fig. 55 Charging the closing spring with the hand crank

OPEN CLOSE

Charged Discharged Charged

Operation

9229 0020 176 0- 492017-01-05

OpeningThe opening spring is charged during the closing operation.

To open, send the opening command via the OPEN pushbutton or the correspond-ing command element until the vacuum circuit-breaker is open, and shows and sig-nals the OPEN switching position.

Change of the switching position indicator after electrical opening:

The spring state indicator does not change.

Discharging the closing spring

To discharge the closing spring:

• Deactivate the supply voltage• On the vacuum circuit-breaker, actuate the OPEN, CLOSE and OPEN push-

buttons manually one after the other.

This ensures that the vacuum circuit-breaker is open and the closing spring is dis-charged.

CLOSE OPEN

Operation

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Maintenance

9229 0020 176 0- 512017-01-05

Maintenance

Maintenance and servicing

Maintenance

The vacuum circuit-breaker SION® is maintenance-free under normal operatingconditions (up to rated current). We do, however, recommend you carry out regularvisual inspections. The maximum permissible mechanical operating cycle number is10 000 (30 000 operating cycles can be ordered as an option).

Preliminary work

• Prior to starting work on the vacuum circuit-breaker, observe the local safetyregulations for high-voltage devices and the “5 safety rules” as per EN 50110-1.

• Switch off the supply voltage and secure against switching back on.• On the vacuum circuit-breaker, actuate the OPEN, CLOSE and OPEN pushbut-

tons manually one after the other. This ensures that the vacuum circuit-breakeris open and the closing spring is discharged.

Special operating conditions

If the vacuum circuit-breaker is operated under unfavourable conditions indoors(heavy and frequent condensation, dusty air, etc.), we recommend cleaning the in-sulating parts and possibly the outer parts of the circuit-breaker at shorter intervals.

Cleaning

The insulating parts must be clean if their insulating capacity is to be guaranteed.

DANGER

High voltage - danger to life!

Touching live parts is fatal or causes serious physical injury.

Before beginning maintenance work, note the 5 safety rules for high-voltageequipment specified in EN 50110-1, namely:

• Isolate from the power supply• Secure against switching back on• Verify safe isolation from the power supply• Earth and short-circuit• Cover or cordon off neighbouring live parts

WARNINGRisk of crushing!

Mechanical parts can move quickly, even if they are remote-controlled.

Contact with mechanical parts or parts under spring charge can lead to crushingof body parts.

• Do not remove covers.• Do not reach into openings.• Do not touch pole assemblies or circuit-breaker shaft.




Maintenance

52 9229 0020 176 0-2017-01-05

Rub insulating parts with a moist cloth.

As a cleaning agent, use only warm water with a mild, liquid household detergentadded and leave to dry.

Joints and bearings that cannot be disassembled must not be washed out with a de-tergent prior to work.

Service life of the vacuum interruptersIf switching operations occur frequently under overload or short circuit, the servicelife of the vacuum interrupters may be reached prematurely.

Accessories and spare partsReplacing spare parts To ensure that the switchgear operates reliably, spare parts must be replaced only

by trained and certified personnel.

Fig. 56 Accessories available for order

Always specify the vacuum circuit-breaker's type and serial no. (see “Rating plate”on page 27) when ordering spare parts.

CAUTIONRisk of injury!

The vacuum circuit-breaker should be taken out of the switchgear or switchcabinet for servicing.

Separate vacuum circuit-breakers from the control feed voltage or switch it offand disconnect the low-voltage plug or terminal connection.

Accessory/spare part Order number Comment

Operating instructions, German 9229 0020 100

Hand crank 3AX1530-4B

Molykote Longterm 2 3AX1133-4L

Vaseline (contact grease SN10611)e.g. Atlantic white, Atlantic Mineralöl-werk GmbH

3AX1133-4A Pasty consistency, flame point 210 °C, low acid

Maintenance

9229 0020 176 0- 532017-01-05

Manufacturer's product liabilityThe manufacturer's product liability shall be excluded if at least one of the following criteria applies:

• Original Siemens spare parts are not used.• Fitters carrying out replacements have not been trained and certified by

Siemens.• Parts have been incorrectly fitted or adjusted.• Adjustments are not made in accordance with Siemens specifications.• After installation and adjustment, no final test is performed with a tester

approved by Siemens including documentation of the test results.To keep documentation complete, it is important that measurement results are sub-mitted to the responsible Siemens representative.

DisposalThe materials of the vacuum circuit-breaker should be recycled. Disposal of the vac-uum circuit-breaker with minimum environmental impact is possible on the basis of existing legal regulations.

Metal The circuit breaker's metal components can be recycled as mixed scrap, although itis more environmentally sustainable to dismantle the unit as thoroughly as possibleinto sorted scrap and residual mixed scrap.

Electronics Electronic scrap must be disposed of in accordance with applicable regulations.

Materials The vacuum circuit-breaker consists of the following materials:

• Metals- Steel (partly phosphatised, galvanised and yellow chromated or thick layer

passivated)- Copper (partly silver-plated)- Aluminium (partly silver-plated)- Brass- Chrome

• Plastics (partly glass fibre reinforced)- Epoxy resin, polyester resin, polyamide, polycarbonate, ABS-PC mixture- Silicone- Rubber

• Ceramics• Lubricant

Packaging If the packaging is no longer needed, it can be fully recycled.

Hazardous substances When delivered by Siemens, the product does not contain any hazardous substanc-es within the scope of the Hazardous Substances Ordnance applicable to the terri-tory of the Federal Republic of Germany. For operation outside the Federal Republicof Germany, the applicable local laws and regulations must be complied with.

Further information Contact your Siemens Service Centre if you require further information.

ServiceContact person for service work (24 h):

Global customer service • Telephone: +49 180/524 7000• Fax: +49 180/524 2471• on the internet under web address www.siemens.com/energy-support• by email: [email protected] are not free and prices depend on the relevant provider.

Contact person for service during local business hours:

Customer service Brazil • Telephone: +55 11 4585 8040• by email: [email protected]

Customer service India • Telephone: +91 1 800 419 7477• by email: [email protected]

Maintenance

54 9229 0020 176 0-2017-01-05

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Index

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Index

AAccessories available for order ............................. 52Altitude correction factor ....................................... 28Ambient conditions ................................................ 28Anti-pumping device (-K1) .................... 15– 16, 18Areas of application .............................................. 11Auxiliary switch (-S1) ............................ 15– 16, 20

BBasic equipment ................................................... 16Bearing frame ....................................................... 13Busbar ................................................................... 43

CCircuit-breaker tripping signal (-S6) ...... 15– 16, 21Climate classes ..................................................... 28CLOSE pushbutton ............................................... 14Closing solenoid (-Y9) ........................... 15– 16, 18Closing spring ....................................... 15, 48– 49Connecting bar ...................................................... 43Connector strip

(-X1.3) and (-X1.4) .......................... 15– 16, 4020-pole ............................................................ 40

Contact surface, pole ............................................ 43Contact system ..................................................... 14Contactor relay (-K1) ..................................... 15, 18Cover .................................................... 13– 14, 37

Mounting ......................................................... 37Removing ....................................................... 37

DDistance between pole centres ............................. 27

EEarthing connection .............................................. 39

FFactory number ..................................................... 27Fixing hole ............................................................. 13

GGear unit ............................................................... 15

HHand crank .................................................... 14, 48Hand crank coupling ..................................... 14– 15Heater (-R01) ........................................ 15– 16, 25High-voltage protective earth ................................ 39

IInstallation altitudes .............................................. 28Insulating capacity ................................................ 28Insulating operating rod ................................ 13– 14

KKinematics ............................................................ 13

LLocking mechanism ...................................... 13, 25Locking mechanism, mechanical .......................... 25

Low-voltageinterface (-X0) ........................................ 16, 22plug connector (-X0) ............................... 13, 15plug connector with sleeve housing ................ 16

MManual closing, mechanical .................................. 16Manual opening, mechanical ................................. 16Motor (-M1) ................................................... 15– 17Motor short-circuit protection ................................. 17Mounting position .................................................. 36

OOPEN pushbutton .................................................. 14Opening spring ...................................................... 49Operating mechanism ........................................... 14Operations counter ....................................... 14– 16

PPG fitting ....................................................... 16, 38Plugs

(-X1.3) and (-X1.4) .......................................... 40(-X1) ....................................................... 15– 16

Pole contact plate .................................................. 13Pole head .............................................................. 13Pole shell ............................................................... 13Position indicator CLOSED-OPEN ............... 14– 15Position switch ....................................................... 21

(-S12) ..................................................... 15– 16(-S21) ............................................. 15– 16, 21(-S3) ............................................... 15– 16, 21(-S4) ............................................... 15– 16, 21(-S6) ....................................................... 15, 21

RRated frequency .................................................... 27Rated lightning impulse withstand voltage ............ 27Rated normal current .................................... 27, 43Rated operating sequence .................................... 27Rated power frequency withstand voltage ............. 27Rated short-circuit breaking current ............. 27, 43Rated short-circuit duration ................................... 27Rated voltage ............................................... 27, 43Rating plate .................................................. 13, 27Resistor (-R1) ............................................... 15, 24

SShunt release

(-Y1), 1st release ............................ 15– 16, 19(-Y2), 2nd release .......................... 15– 16, 22

Spiral spring pin ..................................................... 44Spring pin .............................................................. 44Spring state indicator .................................... 14– 15Standards .............................................................. 12Switching times ...................................................... 29Switch-on pump prevention (-K1) .......................... 16

Index

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TTerminal thread ..................................................... 43Transformer operated release

(-Y4) ................................................................ 23(-Y5) ........................................................ 16, 23(-Y6) ................................................................ 23

Transformer operated releases(-Y4) ................................................................ 16(-Y6) ................................................................ 16

Type designation ................................................... 27

UUndervoltage release (-Y7) ................... 16, 24, 41

VVacuum interrupter ................................................ 13

Contact stroke ................................................. 14Contact system ............................................... 14Service life ...................................................... 52

Central legend

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Central legend

10 Cartridge insert

20 Operating mechanism

20.1 Cover

20.2 Cover for low-voltage interface

20.3 Side panel

21 Rating plate

22 Contact arm

22.1 Threaded bolt

22.2 Contact arm adaptor

23 Break contact

23.1 Contact system

31 Auxiliary switch (-S1)

32 Low-voltage plug connector (-X0), (optional)

33 Terminal strip (-X1), (optional)

33.1 Connector strip (-X1.3 and -X1.4)

33.3 Plug (-X1), only for 20-pole connector strip (-X1.3 and -X1.4)

34 Anti-pumping device (-K1), contactor relay (-K1)

41 Panel separating from operating mechanism side (optional)

42 Pole head with pole contact plate

42.2 Pole head with cooling ribs

42.1 Pole head cooler

43 Vacuum interrupter

44 Pole contact plate

45 Insulating operating rod

46 Pole shell

47 Panel separating from unit (optional)

49 Holder

51.1 1st shunt release (-Y1)

51.2 2nd release (-Y2)

52 Closing solenoid (-Y9)

53 Motor (-M1)

54.1 Position switch (-S12)





54.6 Circuit-breaker tripping signal (-S6)

55 Closing spring


56.1 CLOSE pushbutton

56.2 OPEN pushbutton

56.3 Position indicator

57 Gear unit

57.1 Opening for hand crank



59 Locking mechanism (optional)

59.2 Mechanical locking mechanism or sensing (optional)

59.4 Heater (-R01), for condensation water pro-tection (optional)

59.6 Resistor (-R1), for undervoltage release (-Y7), (optional)

60.1 Bracket

60.2 Bracket



63 Bearing frame with kinematics

58 9229 0020 176 0-2017-01-05

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9229 0020 176 0- 592017-01-05

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Published by

Siemens AG

Energy Management DivisionMedium Voltages & SystemsSchaltwerk Berlin

Nonnendammallee 10413629 BerlinGermany

Vacuum circuit-breaker 3AE6 SION · vacuum circuit-breaker is to be transported again. Do not reuse severed tensioning belts or plastic wraps. Pack the vacuum circuit-breaker in reverse

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