Overvoltage Protection for low-voltage supplies ...my.korcham.net/bbs_new2/files/564273_OVP_Kap_B001-B046_GB.pdfOvervoltage Protection for low-voltage supplies B.1 ... Overvoltage

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Overvoltage Protection for low-voltage supplies

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Class I Overvoltage Protection B.2 - B.3with sparkover gaps B.4 - B.9with high-power varistors B.10 - B.11Overvoltage Protection, combination arrester B.12 - B.15

Class II Overvoltage Protectionwith varistors B.16 - B.25

Class III Overvoltage Protectionwith varistors B.26 - B.31

Plug-in Overvoltage Protection B.32 - B.35

Mains filter B.36 - B.39

Overvoltage Protection installation instructionsClass I, II, III B.40 - B.43

Examples of applications for TN, TT and IT systems B.44 - B.45

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Overvoltage Protection class I with spark gap

Class I, sparkover gap

Weidmüller series PU 1 TSG and PU B(class I), PU x C (class II) plus PU D andPO D (class III) overvoltage protectiondevices lower the overvoltage protectionlevel to below the limits prescribed by theinsulation coordination to DIN VDE 0110.This means that the entire system issubjected to less interference.

The coordination of the arresters isachieved by technical means. This meansthat decoupling between classes I, II andIII is not necessary.

6.0 kV

4.0 kV

2.0 kV

1.5 kV

Electrical system

Power supply

Data interfacesBus lines

I/O lines

Design surge voltage

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Overvoltage Protection class I with spark gap

Varistor arresters up to 100 kA for diverse voltages PU x C

Varistor arresters up to 100 kA for diverse voltages,

with signalling contact PU x CR

Replacement varistor to suit rated voltage PU 0 C

Page B.17-24

Page B.17-24

Page B.17-24

Class I, high-power varistor Class II, varistor Class III, varistor

Sparkover gaps, triggered and enclosed, 35/50 kA PU 1 TSG

Sparkover gaps, triggered 50 kA PU 1 TSG+

Triggered sparkover gaps, 100 kA PU 1 TSG 100 kA

High-power varistors, 20/25 kA PU 3 B, PU 4 B

High-power varistors, 20/25 kA, with signalling contact PU 3 BR, PU 4 BR

Replacement arrester, high-power varistor PU 0 B

Combined overvoltage protection PU COMBI I + II

Page B.7

Page B.6

Page B.8

Page B.11

Page B.11

Page B.11

Page B.14/15

Single-phase arresters for diverse voltages,

with signalling contact PU D, PU DS

Three-phase arresters with signalling contact PU 3 D

Schuko plug-in overvoltage protector PU D ZS

Page B.27-29

Page B.30

Page B.33-35

Lightning arresters

Overvoltage arresters

Lightning arresters

for insulation coordination to IEC 664 and DIN VDE 0110


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Weidmüller Übergabeelemente

Class I Overvoltage Protection with sparkover gaps

gap is tripped, a safety clearance of min. 100 mm must be maintained between this and any current-conductingcomponents.

The maximum permissible operating voltage Uc is 330 or 440 Vac. Decoupling from downstream class II (C) arresters for470 V is unnecessary because triggered sparkover gaps with alow sparkover voltage are used.

Please follow the installation instructions.

Checking operation, maintenance and approvals

A visual check is necessary to ensure that PU 1 TSG and PU 1TSG+ overvoltage protection components are operatingcorrectly. Besides signalling a mains power failure, the lampilluminates above 120 Vac to indicate the failure of the firingelectronics. It is advisable to check frequently during stormyweather.

The use of triggered sparkover gaps achieves a very lowprotection level of < 1.5 kV with high discharge currents.Depending on the cross-section of the line, the PU 1 TSG mustbe protected with a fuse of max. 125 A gL, the PU 1 TSG+max. 250 A gL.

The connection is designed for the following cross-sections:

– solid wire: 10...35 mm2,

– multistrand wire: 10...25 mm2.

The operating temperature range is –40 °C ... +85 °C.

The PU 1 TSG lightning arresters have UL and KEMA approvaland are hence suitable for use worldwide.

Lightning conductors with spark gap for lightingprotection equipotential bonding Overvoltage Protectionclass I (B charge eliminators)

According to the requirements of class B (DIN VDE 0675 part 6(draft 11.89)/A1: 3/96) and class I as per IEC 61643-1 (1/02),the lightning conductor at the transfer from interface 0 to 1 (as per IEC 1312-1) is used as the lightning protectionequipotential bonding. In combination with several lightningprotectors, the overvoltage protection is used in the mainsforms TN, TT and IT.

When lightning strikes, the triggered air gap protector providesthe necessary equipotential bonding between the building light-ning protection and the earthing system of the power supply.

The use of a sparkover gap satisfies the inspection require-ments for class B overvoltage protection systems according tothe VDEW (Association of German Power Stations) directive(1st ed., 1998).

Electrical connection for building installation

The PU 1 TSG 35 kA class I lightning arrester is connectedbetween the phase conductors (L1, L2, L3) and the N/PE. AWeidmüller PU 1 TS G 50 kA is used to provide the N-PEsparkover gap. The lines for this should be kept as short aspossible.

The triggered and non-blowout PU 1 TSG devices can beclipped to TS 35 rails in electrical cabinets or distributionboards. The maximum permissible operating voltage Uc is 260 Vac. Decoupling from downstream class II (C) arresters isunnecessary because triggered sparkover gaps with a lowsparkover voltage are used.


Electrical connection for industrial installations

The PU 1 TSG+ 50 kA/330 V or 440 V class I lightning arresteris connected between the phase conductors (L1, L2, L3) andthe N/PE. A Weidmüller PU 1 TSG 50 kA is used to provide theN-PE sparkover gap. The lines for this should be kept as shortas possible.

The triggered and blowout PU 1 TSG+ 50 kA devices can beclipped to TS 35 rails in electrical cabinets or distributionboards. Owing to the emissions given off when the sparkover

Dimensioned drawing PU 1 TSG+Overall width 36 mm

Accessories:QB 18-6

BZ 18L1, L2, L3, N, PE

BZ 18PE, PE, PE, PE

QB 18-4

Dimensioned drawing PU 1 TSG+Overall width 18 mm

B


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In contrast to conventional sparkover gaps, the Weidmüller PU1 TSG+ and PU 1 TSG sparkover gaps operate with electronictriggering. This fires the sparkover gap at such an early pointthat the downstream class II (Pu x C) arresters are relieved.Decoupling from downstream class II (C) arresters isunnecessary because triggered sparkover gaps with a lowsparkover voltage are used.

Protection in the TN-S-system

Protecion in the TT-system

The PU 1 TSG+ and PU 1 TSG differ in terms of the followcurrent extinction. The PU 1 TSG+ distributes the arc dropvoltage over several chambers. As soon as the total arc dropvoltage exceeds the mains voltage flowing, the follow current is extinguished. In the PU 1 TSG the follow current extinctiontakes place at the next current zero of the mains voltage.

Choke or conductor

Lightning conductor class I

Overvoltage chargeeliminator class II

Lightning conductor class I

Overvoltage chargeeliminator class II

Integrated electronic trigger component

B.6

B

Articles with coloured order number are kept permanently in stock at the central warehouse in Germany.Delivery times see page X.8

Class I with triggered spark gap

Class I lightning arrester

• encapsulated version

• no decoupling necessary thanks to trigger elec-tronics

• suitable for networks with high short-circuit cur-rents

Technical dataTechnical specification

Rated voltage (AC)

Operating voltage Uc (ac), max.

Requirement class acc. to IEC 61643-1

lightening test voltage imp (10/350µs)

Specific energy, per path

Short-circuit current extinction without back-up fuse

Short-circuit strength at max. back-up fuse

Response time

Back-up fuse, max.

Protection level Up (typ.)

Optical function indicator

Colour

Operating temp. min./Operating temp. max.

Storage temp. min./Storage temp., max.

Approvals le E198315

KEMA

Dimensions

Clamping range (rating- / min. / max.) mm2

Length x width x height mm

Information

Order dataVersion

Information

AccessoriesInformation

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Overvoltage Protection for energy distribution systems

PU 1TSG+ 50kA/0.9kV-330V

for use in industrial networks

L / NL / N

TriggerTrigger

Technical specification

330V d voltage (AC)

330V ating voltage Uc (ac), max.

Class I ment class acc. to IEC 61643-1

50 kA with 25 As charge imp (10/350µs)

625kJ/M rgy, per path

50 kA / 50 Hz current extinction without back-up fuse

25 kAeff gth at max. back-up fuse

< 150 ns me

250 A gl fuse, max.

900V ion level Up (typ.)

green LED unction indicator

black r

-40°C/85°C temp. min./Operating temp. max.

-40°C/85°C mp. min./Storage temp., max.

cURus, File E198315

KEMA

35.0 / 10.0 / 35.0

150.0 x 35 x 80.0

Type Qty. Order No.

PU1 TSG Plus 330 VAC 0,9kV 1 8561220000

Cross-connection QB 18-4 order No. 8619440000Cross-connection QB 18-6 order No. 8619450000

Designation BZ18, PE PE PE PE PE order No. 8619470000

PU 1 TSG+ 50kA/1.5kV-440V

for use in industrial networks

L / NL / N

TriggerTrigger


440V d voltage (AC)





50 kA / 50 Hz current extinction without back-up fuse


< 150 ns me

250 A gl fuse, max.

1500V on level Up (typ.)


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cURus, File E198315

KEMA

35.0 / 10.0 / 35.0

150.0 x 35 x 80.0

Type Qty. Order No.

PU1 TSG Plus 440 VAC 1,5kV 1 8561250000


DesignationBZ18, L1 L2 L3 N PE order No. 8619460000

B.7

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Rated voltage (AC)







Response time

Back-up fuse, max.



Colour



Approvals le E198315

Dimensions



Information

Order dataVersion

Information


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PU 1 TSG 35kA/0.9kV-260V

for use in building networks

TriggerTrigger

L / NL / N


230V d voltage (AC)



35 kA with 17.5As charge imp (10/350µs)

305kJ/Ω per path

3 kA / 50 Hz t current extinction without back-up fuse


< 1 µs time

125 A gl fuse, max.



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cURus, File E198315

35.0 / 10.0 / 35.0

91.0 x 18 x 63.0

Type Qty. Order No.

PU 1 TSG 35kA / 0,9kV 1 8561260000


DesignationBZ18, L1 L2 L3 N PE order No. 8619460000

PU 1 TSG 50kA/1.5kV-260V


TriggerTrigger

L / NL / N


230V d voltage (AC)




625kJ/Ω per path

500 A / 50 Hz current extinction without back-up fuse


< 1 µs time

125 A gl fuse, max.


No tical function indicator

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cURus, File E198315

35.0 / 10.0 / 35.0

91.0 x 18 x 63.0

Type Qty. Order No.

PU 1 TSG 50kA / 1,5kV 1 8561230000


Designation BZ18, PE PE PE PE PE order No. 8619470000

B.8

B






• suitable as N-PE arrester


Rated voltage (AC)







Response time

Back-up fuse, max.



Colour



Approvals le E198315 KEMA

Dimensions



Information

Order dataVersion

Information


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PU 1 TSG 100 kA

for use as N-PE arrester

TriggerTrigger

L / NL / N


230V d voltage (AC)




2500kJ/Ω per path

100 A 260 V/50 Hz rent extinction without back-up fuse


< 1 µs time

125 A gl fuse, max.


No tical function indicator

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cURus, File E198315 KEMA

50.0 / 6.0 / 50.0

90.0 x 36 x 63.0

Type Qty. Order No.

PU 1 TSG 100kA/1,5 kV 1 8762020000


BZ18, L1 L2 L3 N PE order No. 8619460000BZ18, PE PE PE PE PE order No. 8619470000

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B

Weidmüller overvoltage protection type PU B is designed forlightning protection equipotential bonding to DIN VDE 0185part 1 (Nov 1982). The PU B is a class I lightning arrester (B arrester) to DIN VDE 0675 part 6 (Nov 1989), IEC 61643-1(Feb 1998), ENV 61024-1 (Jan 1995) and IEC 1312-1 (Feb1995).

In the event of a lightning strike, the integral plug-in high-powervaristors create the necessary equipotential bonding betweenthe building’s lightning protection system and the earthingsystem of the power supply.

Electrical connection

The PU B class I lightning arresters are connected between the phase conductors (L1, L2, L3), or the neutral conductor,the earth of the consumer installation and – in addition – theearthing bar of the distribution board. The lines for this shouldbe kept as short as possible.

The PU B is clipped to a TS 35 rail in the switching cabinet ordistribution board. The maximum permissible operating voltageUc is 275 Vac. No inductances are required for decouplingfrom downstream class II (C) arresters.



A visual check is necessary – more frequently during storms –to ensure that the PU B overvoltage protection componentsare operating correctly. This visual check is easy because thevaristor is fitted with a thermal disconnector. If this has beentripped and protection is no longer provided, the flag in thestatus window changes from green to red. A tripped arrester is easily replaced by a qualified technician without having todisconnect any wiring.

The top section of the varistor is coded according to voltageand – to distinguish it from class II overvoltage arresters (C arresters) – integrated in a black plastic housing (PA 6.6).Therefore, it is not possible to plug in a different, i.e. wrong,replacement varistor.

These plug-in high-power varistors achieve a very lowprotection level of < 2 kV with high discharge currents. Thearrester is to be fused (max. 160 A gL) to suit the cross-sectionof the line. The use of varistors means that overvoltages do notgive rise to any emissions within the installation.

The connection is to be designed to IEC 947-7-1 for thefollowing cross-sections:


– multistrand wire: 16...25 mm2,

– fine strand wire 10...25 mm2.


The PU B is an arrester that can be used both as a class I andalso a class II arrester.

Weidmüller PU B lightning arresters have UL approval and arehence suitable for use worldwide.

PU-B dimensionsWidth PU3B 54 mmPU3BR 72 mmPU4B 72 mmPU4BR 90 mm

Lightning arresters with varistors for lightning protectionequipotential bonding

Class I overvoltage protection (B arresters)

B.11

B


Class I with high-power varistors

Class I lightning arrester with high-power varis-tors, also suitable as class II arrester

• plug-in version with visual function indicator

• complete unit

• coded voltage level, diverse voltages

• high energy absorption, 7 kA 10/350 µs perdisc

• low residual voltage

• short time to sparkover

• no follow current

• thermal overcurrent protection for varistors

• no decoupling inductance required between PUB and PU C


Rated voltage (AC)





Leakage current, max. (8/20 µs)

Response time

Back-up fuse, max.


Optical function indicator faulty, replace

Monitoring contact

Design lation housing

Colour



Approvals

Dimensions



Information

Order dataVersion

without telecomm. contact

with telecomm. contact

Information


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PU 3 B/BR

PU 3 B/BR 230/400Vac

L3

U U U

L2 L1 11 12 14

OK CHANGE OK CHANGE OK CHANGE


230V d voltage (AC)



20 kA ening test voltage imp (10/350µs)


100.0kA current, max. (8/20 µs)

< 25 ns ime

160 A gl fuse, max.


green = OK; red = arrester faulty, replace

250V 1A 1CO contact

installation housing

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UL provals

without telecomm. contact with telecomm. contact

10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 54 x 61.0 90.0 x 72 x 61.0

Type Qty. Order No.

PU 3 B 275 VAC 1 8381890000

PU 3 BR 275 VAC 1 8381900000

Plug-in spare arrester, 275 V PU 0 B 8381880000

PU 4 B/BR

PU 4 B/BR 230/400Vac

11 12 14 L3

U U U

L2 L1


U

OK CHANGE

N


230V d voltage (AC)



25 kA ening test voltage imp (10/350µs)

100kJ/Ω per path


< 25 ns ime

160 A gl fuse, max.



250V 1A 1CO contact


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UL provals


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 72 x 61.0 90.0 x 90 x 61.0

Type Qty. Order No.

PU 4 B 275 VAC 1 8147020000

PU 4 BR 275 VAC 1 8291640000


The PU I+II COMBI combined overvoltage protectionincorporates triggered PU 1 TSG class I sparkover gaps, classII varistor arresters PU x C and cross-connections. This setupprotects low-voltage consumer installations and electronicdevices against overvoltages, both those caused by atmosphericdischarges (lightning) and those caused by switching operations(transients).

The PU COMBI complies with the requirements of IEC 61643-1 (Feb 1998). The PU R COMBI also has a remote signallingfunction achieved via a floating contact.


The PU COMBI overvoltage protection device is connectedwith lines as short as possible between the phase conductors(L1, L2, L3), or the neutral conductor (N), and the earth of theconsumer installation. Unprotected lines (e.g. to meters) andprotected lines must not be routed together.

The PU COMBI can be supplied for a 4-conductor system withthree phases plus PEN conductor, and also for a 5-conductorsystem with three phases plus N-PE arrester.


A visual check is necessary to ensure that the PU COMBIovervoltage protection components are operating correctly.This visual check is easy because the arrester is fitted with athermal disconnector. If this has been tripped and protection isno longer provided, the flag in the status window changes fromgreen to red. A tripped arrester is easily replaced by a qualifiedtechnician without having to disconnect any wiring. The topsection of the varistor is coded according to voltage. Therefore,it is not possible to plug in a different, i.e. wrong, replacementvaristor.

The cross-section of the earth line must be at least 10 mm2 orhalf the cross-sectional area of the phase conductor. The fuseprotection (max. 125 A gL) for the PU modules is chosendepending on the line cross-section and the type of wiring.

The connection is designed to IEC 947-7-1 for the followingcross-sections:

solid wire: 10...35 mm2

multistrand wire: 10...25 mm2

fine strand wire: 10...25 mm2


Combination arrester

Combined lightning and overvoltage protection for low-voltage consumer installations and electronics


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B

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length x width x height

PU Combi I+II 4-conductor system 90 x 65 x 110 mmPU R Combi I+II 4-conductor system 90 x 65 x 126 mmPU Combi I+II 5-conductor system 90 x 65 x 148 mmPU R Combi I+II 5-conductor system 90 x 65 x 162 mm

h

B.14

B


applicable for 4-wire systems

The overvoltage protection combination consistsof the class I triggered sparkover gap PU1TSG forprotecting the phase to N of an N-PE sparkovergap and the class II PU3C. The arresters are inter-connected via 16 mm2 jumpers.

The connection to the power line is made at thePU1TSG.


Rated voltage (AC)







Response time t;100 ns

Back-up fuse, max.



Colour



Approvals

Dimensions



Information

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PU COMBI I+II 4 Wire



230V d voltage (AC)


I+II (combination arrester) EC 61643-1

35 kA with 17.5 As charge mp (10/350µs)

305kJ/Ω per path



sym/ asym: <100 ns

125 A gl fuse, max.



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Approvals

35.0 / 10.0 / 35.0

91.0 x 110 x 65.0

Type Qty. Order No.

PU COMBI I+II 4 Wire 1 8729960000

Set: PU3C(R), PU1TSG, jumpers

PU R COMBI I+II 4 Wire



230V d voltage (AC)




305kJ/Ω per path



sym/ asym: <100 ns

125 A gl fuse, max.



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Approvals

35.0 / 10.0 / 35.0

90.0 x 126 x 65.0

Type Qty. Order No.

PU R COMBI I+II 4 Wire 1 8729970000


B.15

B


applicable for 5-wire systems

The overvoltage protection combination consistsof the class I triggered sparkover gap PU1TSG forprotecting the phase to N of an N-PE sparkovergap and the class II PU3C. The arresters are inter-connected via 16 mm2 jumpers.

The connection to the power line is made at thePU1TSG.


Rated voltage (AC)




50 kA with 25 As charge





Back-up fuse, max.



Colour



Approvals

Dimensions



Information

Order dataVersion

Information


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PU COMBI I+II 5 Wire


h


230V d voltage (AC)





305kJ/Ω per path

3 kA t-circuit current extinction without back-up fuse


sym/ asym: <100 ns

125 A gl fuse, max.



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Approvals

35.0 / 10.0 / 35.0

90.0 x 148 x 65.0

Type Qty. Order No.

PU COMBI I+II 5 Wire 1 8729950000


PU R COMBI I+II 5 Wire


h


230V d voltage (AC)





305kJ/Ω per path

3 kA t-circuit current extinction without back-up fuse


sym/ asym: <100 ns

125 A gl fuse, max.



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Approvals

35.0 / 10.0 / 35.0

91.0 x 165 x 65.0

Type Qty. Order No.

PU R COMBI I+II 5 Wire 1 8729930000


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B

Weidmüller overvoltage protection type PU C protects low-voltage consumer installations and electronic devices againstovervoltages, both those caused by atmospheric discharges(lightning) and those caused by switching operations(transients). The PU C complies with the requirements of DIN VDE 0675 part 6, class C (Nov 1989), (draft) DIN VDE0675 part 6, A2 (Oct 1996), ÖVE SN 60 parts 1 and 4, andIEC 61643-1 (Feb 1998).


The PU COMBI overvoltage protection device is connectedwith lines as short as possible between the phase conductors(L1, L2, L3), or the neutral conductor (N), and the earth of theconsumer installation. Unprotected lines (e.g. to meters) andprotected lines must not be routed together. PU C arresters forthe "3+1” circuit are also available.

PU C overvoltage protection is available as a compact module,3- or 4-pole, with up to 100 kA (8/20 µs), with the PEconnections of the discs already interconnected. Versions canbe supplied for the following rated voltages:

• 60 Vac,

• 115/230 Vac,

• 230/400 Vac,

• 470/600 Vac,

• for ”3+1” circuits

• special types for IT systems


A visual check is necessary to ensure that the PU COMBIovervoltage protection components are operating correctly.This visual check is easy because the arrester is fitted with athermal disconnector. If this has been tripped and protection isno longer provided, the flag in the status window changes fromgreen to red. A tripped arrester is easily replaced by a qualifiedtechnician without having to disconnect any wiring.

The top section of the varistor is coded according to voltageand – to distinguish it from class I overvoltage arresters (B arresters) – integrated in a light grey plastic housing (PA 6.6).Therefore, it is not possible to plug in a different, i.e. wrong,replacement varistor.

The cross-section of the earth line must be at least 10 mm2 orhalf the cross-sectional area of the phase conductor. The fuseprotection (max. 125 A gL) for the PU modules is chosendepending on the line cross-section and the type of wiring.

Weidmüller PU C arresters have ÖVE SN 60 and UL approvaland are hence suitable for use worldwide.

The connection is designed to IEC 947-7-1 for the followingcross-sections:


– multistrand wire: 16...25 mm2,

– fine strand wire: 10...25 mm2.


Overvoltage Protection for low-voltage consumers andelectronic components

Low-voltage protection class II (C charge eliminators)


Monitoring unit

Dimensioned drawing PU-COverall width PU1C 18 mmPU2C 36 mmPU3C 54 mmPU3CR, PU4C 72 mmPU4CR 90 mm

B.17

B


Class II with varistors

Class II overvoltage protection

with Uc: 280 V

• plug-in varistor top section


• high energy absorption



• installed in Insta distributor

• thermal and dynamic overcurrent protection

• coordination between class I with Up:< 900 V


Rated voltage (AC)



Rated leakage current (8/20 µs)

Limiting leakage current (8/20 µs)


Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals N 60, SABS

Dimensions



Information

Order dataVersion



Information


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PU 3 C+CR 230 V

PU 3 C / PU 3 CR 230/400Vac

L3 L2 L1


11 12 14

U U U


230V d voltage (AC)


Class II ent class acc. to IEC 61643-1

20 kA leakage current (8/20 µs)

40kA ting leakage current (8/20 µs)


< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


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UL, ÖVE SN 60, SABS


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 54 x 61.0 90.0 x 72 x 61.0

Type Qty. Order No.

PU 3 C 275 VAC 1 8021490000

PU 3 CR 275 VAC 1 8021510000


PU 4 C+CR 230 V

PU 4 C / PU 4 CR 230/400Vac

11 12 14 L3

U U U

L2 L1


U

OK CHANGE

N


230V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur





10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 72 x 61.0 90.0 x 91 x 61.0

Type Qty. Order No.

PU 4 C 275 VAC 1 8021500000

PU 4 CR 275 VAC 1 8021520000


B.18

B




with Uc: 280 V










Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals N 60, SABS

Dimensions



Information

Order dataVersion



Information


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PU 1 C 230 V

PU 1 C

L1

OK CHANGE

U


230V d voltage (AC)





40.0kA e current, max. (8/20 µs)

< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur





10.0 / 6.0 / 50.0

90.0 x 18 x 61.0

Type Qty. Order No.

PU 1 C 275 VAC 1 8102610000


PU 2 C 230 V

PU 2 C

U U

L2 L1

OK CHANGE OK CHANGE


230V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur





10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 36 x 61.0 90.0 x 54 x 61.0

Type Qty. Order No.

PU 2 C 275 VAC 1 8098170000

PU 2 CR 275 VAC 1 8425240000


B.19

B




with Uc: 280 V









• complete 3- or 4-pole modules for TN and TTsystems with 100 kA 8/20 µs discharge current


Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour range



Approvals

Dimensions



Information

Order dataVersion



Information


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PU 3+1 C 230 V

PU 3+1 C/CR 230/400Vac

L3

U U U

L2 L1


PE

N


230V d voltage (AC)






< 1 µs time

125 A gl fuse, max.



250V 1A 1CO contact


grey/orange



Approvals


16.0 / 6.0 / 50.0 16.0 / 6.0 / 50.0

91.0 x 72 x 61.0 91.0 x 72 x 61.0

Type Qty. Order No.

PU 3+1 C 275 VAC 1 8416370000

PU 3+1 CR 275 VAC 1 8576190000

Plug-in spare arrester, 280 V PU 0 C 8339510000Plug-in spare arrester N-PE distance PU 0 C N-PE 8796160000

PU 3+1 C 385 V

PU 3+1 C 385Vac

L3

U U U

L2 L1


PE

N


230V d voltage (AC)






< 1 µs time

125 A gl fuse, max.



Monitoring contact


grey/orange



Approvals


10.0 / 6.0 / 50.0

91.0 x 72 x 61.0

Type Qty. Order No.

PU 3+1 C 385 VAC 1 8616990000

Plug-in spare arrester, 385V PU 0 C 8328670000Plug-in spare arrester N-PE distance PU 0 C N-PE 8796160000

B.20

B




with Uc: 130 V







• complete 3- or 4-pole modules for TN and TTsystems with 100 kA 8/20 µs discharge current


Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order dataVersion



Information


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PU 3 C 115 V

PU 3 C / PU 3 CR 115/230Vac

L3 L2 L1


11 12 14

U U U


115V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur



UL provals


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 54 x 61.0 90.0 x 72 x 61.0

Type Qty. Order No.

PU 3 C 130 VAC 1 8291660000

PU 3 CR 130 VAC 1 8291680000

Plug-in spare arrester, 130 V PU 0 C 8432430000

PU 4 C 115 V

PU 4 C / PU 4 CR 115/230Vac

11 12 14 L3

U U U

L2 L1


U

OK CHANGE

N


115V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur



UL provals


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 72 x 61.0 90.0 x 90 x 61.0

Type Qty. Order No.

PU 4 C 130 VAC 1 8291670000

PU 4 CR 130 VAC 1 8291690000


B.21

B




with Uc: 130 V








Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order dataVersion


Information


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PU 1 C 115 V

PU 1 C

L1

OK CHANGE

U


115V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



Monitoring contact


grey ur



UL provals


10.0 / 6.0 / 50.0

90.0 x 18 x 61.0

Type Qty. Order No.

PU 1 C 130 VAC 1 8215820000


PU 2 C 115 V

PU 2 C

U U

L2 L1

OK CHANGE OK CHANGE


115V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



Monitoring contact


grey ur



UL provals


10.0 / 6.0 / 50.0

90.0 x 36 x 61.0

Type Qty. Order No.

PU 2 C 130 VAC 1 8291650000


B.22

B




with Uc: 385 V

• suitable for IT networks








• complete 3- or 4-pole modules with 100 kA8/20 µs discharge current


Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order dataVersion



Information


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PU 3 C+CR 385 V

PU 3 C / PU 3 CR (to Austrian standard 8001section 18)

L3 L2 L1


11 12 14

U U U


230V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur



UL provals


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 54 x 61.0 90.0 x 72 x 61.0

Type Qty. Order No.

PU 3 C 385 VAC 1 8197930000

PU 3 CR 385 VAC 1 8380730000

Plug-in spare arrester, 385V PU 0 C 8328670000

PU 4 C+CR 385 V

PU 4 C / PU 4 CR (to Austrian standard 8001section 18)

L3

U U U

L2 L1 11 12 14


N

U

OK CHANGE


230V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur



Approvals


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 72 x 61.0 90.0 x 91 x 61.0

Type Qty. Order No.

PU 4 C 385 VAC 1 8601280000

PU 4 CR 385 VAC 1 8494040000

Plug-in spare arrester, 385V PU 0 C 8328670000

B.23

B




with Uc: 550 V








• coordination between class I with Up:< 1.5 kV


Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order dataVersion



Information


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PU 3 C+CR 470 V

PU 3 C / PU 3 CR 470/690Vac

L3 L2 L1


11 12 14

U U U


470V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur



UL provals


10.0 / 6.0 / 10.0 10.0 / 6.0 / 10.0

90.0 x 54 x 61.0 90.0 x 72 x 61.0

Type Qty. Order No.

PU 3 C 550 VAC 1 8451050000

PU 3 CR 550 VAC 1 8451060000


PU 4 C+CR 470 V

PU 4 C / PU 4 CR 470/690Vac

L3

U U U

L2 L1 11 12 14


N

U

OK CHANGE


470V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



250V 1A 1CO contact


grey ur



UL provals


10.0 / 6.0 / 50.0 10.0 / 6.0 / 50.0

90.0 x 72 x 60.0 90.0 x 90 x 60.0

Type Qty. Order No.

PU 4 C 550 VAC 1 8291720000

PU 4 CR 550 VAC 1 8451070000


B.24

B




with Uc: 550 V








• coordination between class I with Up:< 1.5 kV


Rated voltage (AC)






Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order dataVersion


Information


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PU 1 C 470 V

PU 1 C

L1

OK CHANGE

U


470V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



Monitoring contact


grey ur



UL provals


10.0 / 6.0 / 50.0

90.0 x 18 x 61.0

Type Qty. Order No.

PU 1 C 550 VAC 1 8291700000


PU 2 C 470 V

PU 2 C

U U

L2 L1

OK CHANGE OK CHANGE


470V d voltage (AC)






< 25 ns ime

125 A gl fuse, max.



Monitoring contact


grey ur



UL provals


10.0 / 6.0 / 50.0

90.0 x 36 x 61.0

Type Qty. Order No.

PU 2 C 550 VAC 1 8291710000


B

B.25

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B.26

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B

Our overvoltage protection PU D protects low-voltageconsumers and electronic devices from overvoltage caused byatmospheric discharges (thunderstorm) or switchingprocedures (transients).

The PU D can be mounted in small or storey distributionboards.

PU D corresponds to the requirements of DIN VDE 0675, part6, class C, 11/89, part 6, A2 10/96 and IEC 61643-1 02/98.


PU D overvoltage protection is installed after the PU C beforethe device/consumer being protected. It can protect circuits upto 16 A.

For example, an installation for a circuit in small distributionboards can be used to protect a monitor.

Functional checks and maintenance

Ageing of the varistors can cause high temperatures at the va-ristors. In low voltage systems, this can cause a fire. The integrated temperature monitoring automaticallydisconnects the varistor from the power supply. This is indicated by the glow lamp going off. Types PO DS alsoequipped with a switching contact to report this.

The back-up fuse depends on the conductor cross-sectionand type of routing. For PU D charge eliminators, the maximumpower rating is up to 16 A.

The connection is rated to IEC 947-7-1 for the following cross-sections:

solid conductor: 0,5...2,5 mm2

flexible conductor: 0,5...2,5 mm2

The operating temperature range is from –25 °C ... +55 °C, and the storage temperature range is from –40 °C ... +60 °Cbetragen.

Low-voltage consumers, small distribution boards andelectronic componentsOvervoltage protection class III (D charge eliminators)


Dimensioned drawing PU DSOverall width 18 mm

B.27

B


Class III with varistors

Class III overvoltage arrester


Rated voltage (AC)



Combined pulse Uoc

Rated discharge current per path (8/20 µs)


Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order data

Information


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PU DS 230Vac 16A

PU DS 230Vac 16A


230V d voltage (AC)


Class III nt class acc. to IEC 61643-1

4kV ed pulse Uoc


5.0kA ge current, max. (8/20 µs)

< 150 ns me

16 A -up fuse, max.


green LED = OK on indicator

250V 1A 1CO contact


grey ur



Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 18 x 61.0

Type Qty. Order No.

PU DS 230VAC 16A 1 8523740000

PU DS 115Vac/dc 16A

PU DS 115Vac/dc 16A


115V d voltage (AC)



4kV ed pulse Uoc



< 150 ns me

16 A -up fuse, max.



250V 1A 1CO contact


grey ur



Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 18 x 61.0

Type Qty. Order No.

PU DS 115VAC 16A 1 8568650000

B.28

B





Rated voltage (AC)



Combined pulse Uoc



Response time

Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order data

Information


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PU DS 48Vac/dc 16A

PU DS 48Vac/dc 16A


48V ed voltage (AC)

60V rating voltage Uc (ac), max.


4kV ed pulse Uoc

2.50kA discharge current per path (8/20 µs)


< 150 ns me

16 A -up fuse, max.



250V 1A 1CO contact


grey ur


-40°C/70 temp. min./Storage temp., max.

Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 18 x 61.0

Type Qty. Order No.

PU DS 48V 16A 1 8670740000

PU DS 24Vac/dc 16A

PU DS 24Vac/dc 16A


24V ed voltage (AC)

30V rating voltage Uc (ac), max.


4kV ed pulse Uoc

1kA discharge current per path (8/20 µs)


< 150 ns me

16 A -up fuse, max.



250V 1A 1CO contact


grey ur



Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 18 x 61.0

Type Qty. Order No.

PU DS 24Vuc 16A 1 8682100000

B.29

B





Rated voltage (AC)



Combined pulse Uoc



Response time

Back-up fuse, max.


Optical function indicator fault

Monitoring contact


Colour



Approvals

Dimensions



Information

Order data

Information


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PU D 230Vac 16A

PU D 230Vac 16A

OK FAULT

L L

11

12

NNPE PE

U

U


230V d voltage (AC)



4kV ed pulse Uoc



< 150 ns me

16 A -up fuse, max.


green LED = OK; red LED = fault

250V 1A 1CO contact


grey ur



Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 54 x 61.0

Type Qty. Order No.

PU D 230V 16A 1 8411930000

PU D 115Vac 16A

PU D 115Vac 16A

OK FAULT

L L

11

12

NNPE PE

U

U


115V d voltage (AC)



4kV ed pulse Uoc



< 150 ns me

16 A -up fuse, max.



250V 1A 1CO contact


grey ur



Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 54 x 61.0

Type Qty. Order No.

PU D 115Vac 16A 1 8472100000

B.30

B





Rated voltage (AC)



Combined pulse Uoc




Back-up fuse, max.



Monitoring contact


Colour



Approvals

Dimensions



Information

Order data

Information


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PU 3 D 230V/400Vac 16A

PU 3 D 230V/400Vac 16A

L1L2

N N

12

11

L1L2L3L3

PE PE

FAULT

L1

FAULT

L2

FAULT

L3


230V d voltage (AC)



4kV ed pulse Uoc



< 150 ns <100 ns

16 A -up fuse, max.



250V 1A 1CO contact


grey ur



Approvals

screw connection

2.5 / 0.5 / 2.5

91.0 x 54 x 61.0

Type Qty. Order No.

PU 3D 230V/400Vac 16A 1 8509130000

PO DS 230V 16A/ PO DAS 230V/16A

PO DAS 230V/16A

L

N

PE

U

FAULT


230V d voltage (AC)



4kV ed pulse Uoc



sym/ asym: <100 ns

16 A -up fuse, max.



Monitoring contact

miscellaneous housing

black r



Approvals

screw connection screw connection

41.0 x 20 x 41.0 41.0 x 12 x 41.0

Type Qty. Order No.

PO D AS 1 8581830000

PO D S 1 8581840000

PO D AS with audible signal

B

B.31

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Dimensioned drawing PU D ZS

B.32

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B

The PU D ZS plug-in overvoltage protection device providesprotection against transient overvoltages for equipment pluggedinto earthed power sockets. The plug-in overvoltage protectionwith its earthed power socket is designed for 230 V/16 A, fulfilsthe requirements of class III to IEC 61643-1 and is used inconjunction with class II, the PU C protection.

The PU D ZS is fitted with components to monitor varistortemperature. In the event of an excessive temperature rise dueto pulses from the mains supply, these disconnect the unit. The integral red warning lamp indicates that protection is nolonger provided. The PU D ZS must then be replaced.

The PU D ZS analog plug-in overvoltage protection deviceprovides protection against transient overvoltages for equipmentand analogue devices plugged into earthed power sockets.Besides the use of standard telephones, an analogue installationcan also transmit data services like fault signalling systems andInternet. The fact that besides telephones other devices like faxmachines and modems are also connected to the analogue linemeans that the hazards due to transient interference phenomenalike overvoltages are on the increase.

In order to achieve protection against these overvoltages,combined overvoltage protection for analogue lines and mainsvoltages is incorporated. The basic version of this power socketadapter is protected by two-stage overvoltage protectionachieved with gas discharge tube and fast-acting suppressiondiodes.

The gas discharge tube achieves a high energy discharge; thesuppression diodes ensure a low residual voltage.

The PU D ZS digital plug-in overvoltage protection providesprotection against transient overvoltages for equipment anddigital devices plugged into earthed power sockets. This powersocket adapter is available for Uko and So interfaces.

In order to achieve protection against these overvoltages,combined overvoltage protection for digital lines and mainsvoltages is incorporated. The basic version of this power socketadapter is protected by two-stage overvoltage protectionachieved with gas discharge tube and fast-acting suppressiondiodes.

The gas discharge tube achieves a high energy discharge; thesuppression diodes ensure a low residual voltage.

In the PU D ZS with the RJ45 sockets a connecting line withRJ45 plugs at both ends is included with the product.

PU D ZS plug-in Overvoltage ProtectionClass III overvoltage protection


B.33

B


Class III adapter plug


Technical data

Rated voltage (AC)


Operating current, Imax

According to DIN VDE 0675-6


Combined pulse Uoc


Back-up fuse, max.

Response time

On output side sym., input 8/20 µs, typical

Output side unsym., input 8/20 µs, typical

Leakage current at Un


Pollution severity

Overvoltage category



General data

Input voltage max.

nominal current In, max.

Norm Signal lephone signal RJ45/RJ11/12


Total current

Response time, type

Resistance per path

Cut-off frequency fg, 600 M-System

Transistor output, positive-switching

Residual voltage at output at input pulse of 1 kV/µs

Residual voltage at output at 8/20µs and input pulse of 5kA

Dimensions



Information

Order dataVersion

Information


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PU D ZS So

PU D ZS So 230V 16A

L POWER

PHONE

L

N NPE PE

1a 1a'

1b 1b'2a 2a'

2b 2b'

FAULT 230V~

230V d voltage (AC)


16A ing current, Imax

requirement class D E 0675-6


4kV ed pulse Uoc


16 A -up fuse, max.

< 150 ns me

600V utput side sym., input 8/20 µs, typical

1500V t side unsym., input 8/20 µs, typical

1µA e current at Un


2 ollution severity

III rvoltage category

0°C/60°C g temp. min./Operating temp. max.


General data

190V t voltage max.

0.45A al current In, max.

ISDN telephone signal RJ45/RJ11/12 1/12

4 kA d leakage current (8/20 µs)

10A al current

< 5 ns se time, type

1.1 Ω per path

80 MHz f frequency fg, 600 M-System


a/b <= 270V a-b/PE <= 270V at input pulse of 1 kV/µs

a/b<= 100V a-b/PE<= 100V ut at 8/20µs and input pulse of

5kA

Earthed contact

110.0 x 62 x 48.0

incl. conductor, RJ 11/12 both ends

Type Qty. Order No.

PU D ZS 230V~ 16A / ISDN So 1 8697560000

Conductor, RJ 45 at both ends, order no. 8697590000

PU D ZS

PU D ZS analog 230V 16A

L POWER

PHONE

L

N NPE PE

Lb(+) Lb'

LA(-) La'

FAULT 230V~

230V d voltage (AC)





4kV ed pulse Uoc


16 A -up fuse, max.

< 150 ns me





2 ollution severity




General data

190V DC oltage max.


Analogue telephone signal RJ45/RJ11/12


10A al current


1.1 Ω per path

2 MHz ff frequency fg, 600 M-System

a/b <= 270V a-b/PE <= 270V e-switching



5kA

Earthed contact

110.0 x 62 x 48.0


Type Qty. Order No.

PU D ZS 230V~ 16A / analog a/b 1 8697600000

Conductor, RJ45 on both sides, order no. 8697590000

B.34

B




Technical data

Rated voltage (AC)





Combined pulse Uoc


Back-up fuse, max.

Response time





Pollution severity




General data

Input voltage max.


Norm Signal one signal RJ45/RJ11/12


Total current

Response time, type

Resistance per path





Dimensions



Information

Order dataVersion

Information


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PU D ZS Uko

PU D ZS Uko 230V 16A

L POWER

PHONE

L

N NPE PE

Lb(+) Lb'

La(-) La'

FAULT 230V~

230V d voltage (AC)





4kV ed pulse Uoc


16 A -up fuse, max.

< 150 ns me





2 ollution severity




General data

190V DC oltage max.


ISDN telephone signal RJ45/RJ11/12


10A al current


1.1 Ω per path

80 MHz f frequency fg, 600 M-System


a/b <= 270V a-b/PE <= 270V at input pulse of 1 kV/µs


5kA

Earthed contact

110.0 x 62 x 48.0


Type Qty. Order No.

PU D ZS Uko 230V 16A 1 8697570000

Conductor, RJ 45 at both ends, order no. 8697590000

PU D ZS 230V 16A

PU D ZS 230V 16A

LPOWER

L

N NPE PE

FAULT 230V~

230V d voltage (AC)





4kV ed pulse Uoc


16 A -up fuse, max.

< 150 ns me





2 ollution severity




General data

Input voltage max.


ISDN telephone signal RJ45/RJ11/12


Total current

Response time, type

Resistance per path





Earthed contact

110.0 x 62 x 48.0

Type Qty. Order No.

PU D ZS 230V~ 16A 1 8697580000

B.35

B



Class III overvoltage protection

for signals up to 1 GHz (radio/TV )

Technical data

Rated voltage (AC)





Combined pulse Uoc


Back-up fuse, max.

Response time





Pollution severity




General data

Input voltage max.


Norm Signal trial and cable


Total current

Response time, type

Resistance per path





Dimensions



Information

Order dataVersion

Information


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PU D ZS TV/R

PU D ZS TV/R 230V 16A

L POWER

TV/R

L

N NPE PE

TV TV

R R

FAULT 230V~

+

+

+

230V d voltage (AC)





4kV ed pulse Uoc


16 A -up fuse, max.

< 150 ns me





2 ollution severity




General data

70 put voltage max.

1.50 nal current In, max.

TV/R terrestrial and cable


Total current

< 100 ns time, type

1.1 Ω per path

1 GHz / 75 M ncy fg, 600 M-System


600 V ual voltage at output at input pulse of 1 kV/µs

800 V ual voltage at output at 8/20µs and input pulse of 5kA

Earthed contact

110.0 x 62 x 48.0

Type Qty. Order No.

PU D ZS TV/R 1 8779230000

Coaxial cable approx. 35 cm long in each case

B.36

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B

WAVEFILTERS for simple radio interferencessuppression in the switching cabinet

The WAVEFILTER series eliminates the time-consuming needto screw in mains filters. These filters are simply clipped on tothe TS35 and connected to the device needing suppression.The two-stage WAVEFILTER with overall width 22.5 mm indesigns 1 A, 3 A, 6 A and 10 A offers high attenuation.

The WAVEFILTER with current-compensating choke is ideal forapplications in drive technology and control/automationtechnology, e.g. for suppressing continuous interference typessuch as “noise” or “ripple” from interfering radiation from othersystems or interference from frequency converters andswitched-mode power supplies. A short, low-ohm massconnection is required for the WAVEFILTER to functionperfectly. We recommend earthing all devices directly with thelargest possible cross-section to a central earthing point in theswitching cabinet.

Interference signals

We distinguish between two types of induced transient andcontinuous interference signals: Symmetrical (differential mode)and asymmetrical (common mode). The symmetricalinterference signals generate voltage between the signal leadsof the system. The asymmetrical interference voltages occurbetween the signal leads and earth.

The WAVEFILTER is suitable of attenuating both kinds ofinterference signal. In addition, WAVEFILTER 10 A also has anearthing conductor choke. This earthing conductor chokesupports both attenuation on the earthing conductor for thefilter and additional attenuation of asymmetrical interferencevoltages.

Overvoltage Protection mains filterWAVEFILTER


Insertion loss

1 A WAVEFILTER

3 A WAVEFILTER

6 A WAVEFILTER

10 A WAVEFILTER

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Type VPE Order No.

WAVEFILTER 1A 1 8614790000


Overvoltage ProtectionMains filter


Rated voltage (AC/DC)

Rated current

Capacitance

Inductance L and L1


Test voltage P/N-PE

Test voltage P-N

Operating temp., min./Operating temp., max.

Dimensions

Clamping range (nom./min./max) mm2

length x width x height mm

Note

Ordering dataVersion

Note

AccessoriesNote

WAVEFILTER 1 A

Wavefilter 1 A 250 V

LINE LOADL L'

N N'

Cx

Cy Cy

250V

1A

33nF

10mH

190µA

2000Vac

1700Vdc

-20°C/40°C

2.50 / 0.50 / 2.50

90 x 22.5 x 73.40

See attenuation diagram

WAVEFILTER 6 A


LINE LOADL L'

N N'

Cx

Cy Cy

250V

6A

33nF Cx 22nF Cy

0.80mH

190µA

2000Vac

1700Vdc

-20°C/40°C

2.50 / 0.50 / 2.50

90 x 22.5 x 73.40


Type VPE Order No.



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Overvoltage ProtectionMains filter


Rated voltage (AC/DC)

Rated current

Capacitance

Inductance L and L1


Test voltage P/N-PE

Test voltage P-N

Operating temp., min./Operating temp., max.

Dimensions

Clamping range (nom./min./max) mm2

length x width x height mm

Note

Ordering dataVersion

Note

AccessoriesNote

WAVEFILTER 3 A


LINE LOADL L'

N N'

Cx

Cy Cy

250V

3A

33nF

2mH

190µA

2000Vac

1700Vdc

-20°C/40°C

2.50 / 0.50 / 2.50

90 x 22.5 x 73.40


WAVEFILTER 10 A


LINE LOADL L'

N N'

Cx

Cy Cy

250V

10A

470nF Cx 4.7nF Cy

0.80mH

190µA

2000Vac

1700Vdc

-20°C/40°C

2.50 / 0.50 / 2.50

90 x 22.5 x 73.40


Type VPE Order No.


Type VPE Order No.



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The overvoltage protection may only be installed by suitablyqualified personnel.During the installation, please observe theconnection conditions specific to the country of application.

1. Application

The PU C overvoltage protection to class C (class II) protectslow-voltage consumer installations and electronic devicesagainst overvoltages that can occur as a result of atmosphericdischarges (thunderstorms) or switching operations. The PU Ccomplies with VDE 0675 part 6, class C (draft, Nov 1989), DINVDE 0675 part 6, A2 (Oct 1996), IEC 61643-1 (Feb 1998) andÖVE SN 60 parts 1 and 4. High-power metal oxide varistorsare employed as the voltage-limiting component.

The PU B is a class B (class I) lightning arrester complying withDIN VDE 0675 part 6 (Nov 1989), IEC 61643-1 (Feb 1998),ENV 61024-1 (Jan 1995) and IEC 1312-1 (Feb 1995). Theintegral varistors create the necessary equipotential bonding(lightning protection equipotential bonding according to DINVDE 0185 part 1, Nov 1982) between the building’s lightningprotection and the earthing system of the power supply duringlightning strikes.

The PU D overvoltage protection to class D (class III) protectslow-voltage consumer installations and electronic devicesagainst overvoltages and switching operations. The PU D isintegrated in addition after the PU C in small/storey distributionboards. The PU D complies with DIN VDE 0675 part 6, classD(draft, Nov 1989), DIN VDE 0675 part 6, A2 (Oct 1996) and IEC61643-1 (Feb 1998).

2. Installation specifications

2.1 Place of installationThe PU C must be incorporated in a meter cupboard ordistribution board in such a way that the connection terminalcompartment is not accessible to unauthorised

persons. The PU B is incorporated near the incoming powerlines in order to create the necessary lightning protectionequipotential bonding between the lightning protection systemand the power distribution network. All arresters must beinstalled by a qualified electrician. The installation of systemswith overvoltage protection devices is described in VDE 0100

part 534 (Apr 1999) “Selection and installation of equipment”.This draft standard should be used in conjunction with thefollowing standards:

1. IEC 60364-4-43 “Protection from overvoltage due to atmospheric influencesand switching operations”

2. IEC 61024-1 “Protection of buildings against lightning”

3. IEC 61312-1“Protection against electromagnetic lightning pulses”

2.2 Electrical connection

The lines connecting the PU C overvoltage protection and thePU B lightning arrester between the phase conductor (L1, L2,L3) or neutral conductor (N) and earth (PE) of the consumerinstallation should be kept as short as possible. The routing ofprotected and unprotected lines together must be avoided.(See diagrams on pp. 70-71 for examples of connections.)

2.2.1 Connection to phase conductor and neutralconductor

As a rule, the conductor cross-section for the connection linesto the PU C or PU B arrester is selected as for the phaseconductor (L1, L2, L3) and neutral conductor (N). If a reducedcross-section is desired, a protective device (e.g. main terminalfuse) must guarantee short-circuit protection for the connectinglines. The connection terminals on the arresters may not beused as branch terminals. The backup fuse for the PU C shouldnot exceed 125 A gL. Upstream residual-current circuit-breakers(RCD) type S (3 kA, 8/20 µs) must be able to withstand surgecurrents.The backup fuse for the PU B should not exceed 160 A gL.

Note:

Three-pole PU C devices are employed in a TN-CS system (fig. 2). If the PE and N conductors of the PEN conductor arerouted separately, a four-pole PU should be used. In a TTsystem, a four-pole PU C protector can be installed togetherwith an arrester disconnector according to DIN VDE 0100-534/A1 (Oct 1996). To avoid accidental energisation betweenPE and N and to be able to omit arrester disconnectors, thePU 4 C TT module (Part No. 8416370000) provides the bestsolution (3+1 circuit). A 385 V PU 3 C is installed in an ITsystem with 400 V phase-to-phase voltage.

2.2.2 Installation of D arrester

The PU D arrester is installed in conjunction with a PU C, in thedownstream direction. The PU D is incorporated in the line to beprotected and can protect circuits up to 16 A. The installationcan be carried out in small distribution boards for single circuitsprotecting, for example, monitors. The PO DS is suitable forincorporating in situ, directly in devices or cable ducts.

Installation specification for our PU Overvoltage Protection in power supply networks

2.2.3 Connection to earth

The earth line of the arrester is connected to the earth of theconsumer installation via the shortest route (= 0.5 m). Longer connecting lines reduce the effectiveness of theovervoltage protection. Routing the line parallel with otherelectrical cables should be avoided. In electrical consumerinstallations with equipotential bonding, an earthed equipotentialbonding rail is available as a connection point (see p. 56 ”Principles for low-voltage supplies”). A connection betweenthe arrester earth and the consumer installation earth mustalways be guaranteed. In TN systems the PEN conductor andthe arrester earth line should be connected together. The PENconductor of the power supply company may not be used asan earth. If the PE or PEN rail of a distribution board is used asan earth connection point, it is then necessary for this rail to beconnected to the consumer installation earth via a separateearth line.

Two earth connection terminals are available on the PU B. Bothterminals must be connected. One connection goes to theequipotential bonding connection of the building, the other tothe PE conductor of the installation. The cross-section for theearth line of the arrester is determined, as for lines, accordingto table 1 for the main equipotential bonding. It must be min.0.5 times the cross-section of the main protective conductor,where 25 mm2 copper is taken to be the upper limit and 10 mm2 copper the lower limit.

3. Checking the function

A visual inspection of PU overvoltage protection devices andlightning arresters is especially important during storms. If theflag in the status window or the LED is red, the overvoltageprotection device concerned must be replaced. Ageing of thevaristors can lead to high temperatures in the varistors. This situation can cause fires in low-voltage systems.Therefore, in a hazardous situation the integral temperaturemonitoring automatically disconnects the varistor from the po-wer supply. This disconnection is indicated by the warninglamp being extinguished, and in the PO DS or the PUxCR,

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PUxBR and PU D by a switch contact as well. The backupfuse should be selected depending on the cross-section of theline and type of installation. Backup fuses of 16 A should beused for the PU D.

3.1 Replacement

If as described under point 3 above an arrester shows a redflag or red LED, it should be replaced by a qualified electrician.The individual class I and II and arresters are plug-in units andcoded according to voltage. When performance in- sulationresistance tests to DIN VDE 0100 part 610, the varistorarresters must be removed, e.g. by lifting off the top section.The arrester must be replaced by one suitable for the ratedvoltage of the system.

4. Connecting the remote signalling

4.1 Remote signalling with monitoring module typePUxCR, PUxBR or PU D

The signalling contact of a PUxCR or PUxBR is a changeovercontact and is connected to terminals 11 and 14. In normaloperation (green flag) terminals 11/12 are closed. In this situationterminals 11/14 are open. In the case of a fault (red flag),terminals 11/14 are closed and 11/12 open. In the PU D thetriggering of the disconnection device is signalled by the openingof an irreversible thermal release. The signalling circuit isconnected with twisted lines (e.g. NYM); parallel routing with theconnecting and earth lines must be avoided here. A protectioncircuit formed by an overvoltage fine protection correspondingto the voltage level reduces interference at and in the evaluator.

4.2 Remote signalling with photoelectric barrier type PU-O/S-E

Every PU C and PU B arrester is suitable for use with remotemonitoring and this can be retrofitted at any time. The transmitter must be clipped on to the top-hat rail to the leftand the receiver to the right of the PU blocks and the devicesconnected to a 230 V supply.

Earth line Cross-section mm2)

Main protective conductor ≤ 16 25 ≤ 35– coming from current source

or protective conductor leaving

– incoming service box or – main distribution board

Phase conductor ≤ 35 50 ≥ 70

Earth line of arrester 10 26 25

Table 1


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Afterwards, the remote signalling is connected to terminals11/14 and/or 11/12, as already described under point 4.1above. This system allows up to 40 overvoltage arresters to bemonitored simultaneously.

4.3 Approvals

PUxC(R) for 230/400 V power supply networks to ÖVE SN 60parts 1 and 4.

PU units are provided with CE and UL symbols.

Accessories

A system marker is available from LogiMark with the text“Warning! System protected by overvoltage arresters”. Lift offplug-in top section for insulation measurements. This yellowcard (Part No. 175184 1687) can be affixed with self-adhesivetape. Installation specification for PU1 TSG “Overvoltageprotection in power supply networks”.

1. Application

The arrester serves as lightning protection equipotentialbonding at the interface transition 0 to 1 (according to IEC1312-1) in accordance with the requirements of class B to DINVDE 0675 part 6 (draft, Nov 1989), A1 (Mar 1996) and therequirements of class I to IEC 61643-1 (Feb 1998).

Combinations of several overvoltage arresters are frequentlyused as an N-PE arrester in TN, TT and IT systems. The PU 1TSG 50 kA / 1.5 kV-260 V can be used in a combination circuitas a 50 kA sparkover gap between L and N in systemsdesigned for a short-circuit current of 500 A. The use of asealed sparkover gap satisfies the inspection requirements forclass B overvoltage protection systems according to the VDEWdirective (1st ed., 1998).

2. Installation instructions

2.1 Special installation conditions for metal distributionboards

The following points should be taken into consideration wheninstalling a PU x C:

1. The use of a plastic partition to separate it from adjacentmetal parts. It is recommended to incorporate a WTWpartition (Part No. 1058800000) or a WEW/2 end bracket(Part No. 1061200000).

2. The switching voltage of the PU x CR must be reduced to £ 48 V.

3. PU x C modules for Uc 550 V must always be closed withplastic covers.

2.2 Backup fuse

The overvoltage protection devices of the PU series exhibitpassive behaviour in normal operation; no current isconsumed. The necessary protection against short-circuits andoverloads is thus provided by a fuse designed for the type ofinstallation and the cross-section of the connecting lines. In addition, the products of the PU series are tested with a maximum backup fuse (refer to technical data for details).

If the fuse used in the installation is less than or equal to thisvalue, then this can be used as the line protection in theincoming supply. However, if the fuse is larger than that given in the technical specification, additional fuses to suit theconnecting line must be incorporated in the line to the PU module.

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2.3 Application

PU 1 TSG (+) modules provide the necessary lightningprotection equipotential bonding for existing lightningprotection systems and incoming supplies.

Enclosed PU 1 TSG modules are preferably installed in thedistribution boards of the building’s electrical installation.

Unenclosed PU 1 TSG+ modules with voltages of 330 or 440V are frequently installed in industrial applications.

3. Maintenance

According to their applications, PU 1 TSG(+) modules aredesigned for high electrical mechanical loads. Faulty arrestersmust be replaced immediately. The arresters may not beopened.

Installation specification for PU 1 TSG(+) overvoltageprotection in power supply networks. May only beinstalled by qualified personnel. During the installation,please observe the connection conditions specific to thecountry of application.


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Ordering data TN-C-S 230/400 V with 3+1 circuitClass I (B arrester) Type Order No. Remarks

Sparkover gap 3 x PU 1 TSG 35 kA/0.9 kA-260 V 8561260000 No decoupling necessary

+ 1 x PU 1 TSG 50 kA/0.9kA-260 V 8561230000 as N-PE sparkover gap

or High-power varistor 1 x PU 4 B 25 kA 8381890000 Install behind RCD

Class II (C arrester) Type Order No. Remarks

Varistor PU 4 C TT 3+1 circuit 8416370000

Varistor PU 4 C 8021500000 Install behind RCD

Class III (D arrester) Type Order No. Remarks

Hybrid circuit PU DS 8523740000 Install behind RCD

Hybrid circuit PU D 8411930000 Install behind RCD

Ordering data TN-C 230/400 VClass I (B arrester) Type Order No. Remarks


High-power varistor 1 x PU 3 B 20 kA in Summe 8381890000


Varistor PU 3 C 8021490000

Class III (D arrester Type Order No. Remarks



Examples of applications in 230/400 V systems

TN-C system applications

TN-C-S system applications

TN-S system applications

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Ordering data IT 230/400 V with 3+1 circuitClass I (B arrester) Type Order No. Remarks


+ 1 x PU 1 TSG 50 kA/0.9 kA-260 V 8561230000 as N-PE sparkover gap

High-power varistor 1 x PU 3 B 20 kA 8381890000 Install behind RCD







Ordering data TT 230/400 V with 3+1 circuitClass I (B arrester) Type Order No. Remarks


+ 1 x PU 1 TSG 50 kA/0.9kA-260 V 8561230000 as N-PE sparkover gap

High-power varistor 1 x PU 3 B 20 kA + 1 x PU 1 TSG 8381890000 Install behind RCD







Examples of applications in 230/400 V systems

TT system applications

IT system applications

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Overvoltage Protection for low-voltage supplies ...my.korcham.net/bbs_new2/files/564273_OVP_Kap_B001-B046_GB.pdfOvervoltage Protection for low-voltage supplies B.1 ... Overvoltage

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