Circuit Protection www.automationdirect.com/circuit-protection e31–55 Company Informat on Systems Overview Programmable Controllers Field I/O Software C-more & other HMI Drives Soft Starters Motors & Gearbox Steppers/ Servos Motor Controls Proximity Sensors Photo Sensors Limit Switches Encoders Current Sensors Pressure Sensors Temperature Sensors Pushbuttons/ Lights Process Relays/ Timers Comm. Terminal Blocks & Wiring Power Circuit Protection Enclosures Tools Pneumatics Appendix Product Index Part # Index Volume 13 WMZS Supplementary Protectors Applications WMZS Supplementary protectors are recognized per UL 1077 and certified per CSA C22.2 No. 235 as a Supplementary Protector and can be fully utilized per the NEC and CEC Codes in that capacity. For international purposes, the entire WMZS family is CE marked and in full conformity with the applicable IEC standards for miniature circuit breakers, EN/IEC 60898 and IEC/EN 60947 2. Outside North America, they can be used in both residential and industrial applications as feeder and branch circuit protective devices. In North America, most European Miniature Circuit Breakers are only UL recognized and CSA certified as “Supplementary Protectors”, meaning they cannot be utilized as feeder or branch circuit protective devices per the local elec trical codes (NEC 240.10 and CEC Part 1 C22.1). This commonly restricts their use to applications where “closer” protection is desired than that offered by a branch circuit protection device. Eaton WMZS Supplementary Protectors are ideal for providing protection in many applications, including: • Control power transformers • Relays • Contactor coils • PLC I/O points • Lighting circuits • Power supplies • Computers • Electronic equipment Overview The Eaton WMZS Supplementary Protectors are used to provide overcurrent protection where branch protection (for example, UL 489 MCCB) is already provided or not required. The units can be installed as a component within, or as a part of an appli ance or a piece of electrical equipment. Supplementary Protectors are ideal replace ments for fuses that are applied as a supple mentary protector, i.e. in addition to branch protection (if required). They are 35 mm DIN rail mountable, utilizing spring clips. These are standard protectors, recognized by UL and CSA under UL 1077 and CSA 22.2. They are CE marked in accordance with Low Voltage Directive (LVD) (73/23/EEC). Product Specification The WMZS Supplementary Protector is a dual rated product for both AC and DC supplies, in accordance with UL 1077 and CSA 22.2 standards and is marked with CE in accordance with the Low Voltage Directive. With this dual standard product, you can include it in your design, knowing that in most cases wherever your equipment is used, the product will conform to the local UL, CSA or IEC (European) requirements. The Supplementary Protector is designed to be applied in conjunction with a branch circuit protector (if branch protection is required) and can be a replacement for similarly applied fuses. Its advantage over fuses is that it is resettable and the device’s status is easily and clearly identified by the position of the handle and the flag indicator. In addition, you can select a device that provides maximum reliability and accuracy to fit various applications due to the avail ability of a wide range of current ratings from 0.5 to 63 amperes in three overcurrent characteristic curves, B, C and D. Features and Benefits • Box Terminals accept #18 to #4 wire (1 to 25mm 2 ) for one wire connection or #18 to #8 for two wire connection. • Thermal magnetic overcurrent protection: three levels, categorized by B, C and D curves in direct relation to continuous rating of the device B curve magnetic trip point: 3 to 5 times the rated current, typically used for computers and electronic equipment with very low inrush loads (PLC wiring). C curve magnetic trip point: 5 to 10 times the rated current, typically used for small trans formers, pilot devices, etc. D curve magnetic trip point: 10 to 20 times the rated current, typically used for transformers or loads with very high inductive loads. • Trip Free Design: Breaker cannot be defeated by holding the handle in the “ON” position. • Color coded status indicator window – Red = ON or Green = OFF • IP20 finger protection • 35 mm DIN-rail mountable, utilizing spring clip • Reverse Feedable Listings • UL recognized under UL 1077 Category QVNU2 File E162396 • CSA 22.2, No. 235 File 245545 • CE File LVD 2006/95/EC • IEC/EN 60898 • IEC/EN 60947-2
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Circuit Protectionw w w . a u t o m a t i o n d i r e c t . c o m / c i r c u i t - p r o t e c t i o n e31–55
CompanyInformat on
SystemsOverview
ProgrammableControllers
Field I/O
Software
C-more & other HMI
Drives
SoftStarters
Motors &Gearbox
Steppers/Servos
Motor Controls
ProximitySensors
Photo Sensors
Limit Switches
Encoders
CurrentSensors
PressureSensors
TemperatureSensors
Pushbuttons/Lights
Process
Relays/Timers
Comm.
TerminalBlocks & Wiring
Power
CircuitProtection
Enclosures
Tools
Pneumatics
Appendix
ProductIndex
Part #Index
Volume 13
WMZS Supplementary Protectors
ApplicationsWMZS Supplementary protectors arerecognized per UL 1077 and certifiedper CSA C22.2 No. 235 as aSupplementary Protector and can befully utilized per the NEC and CECCodes in that capacity. For internationalpurposes, the entire WMZS family is CEmarked and in full conformity with theapplicable IEC standards for miniaturecircuit breakers, EN/IEC 60898 and IEC/EN 60947 2.
Outside North America, they can beused in both residential and industrialapplications as feeder and branchcircuit protective devices. In NorthAmerica, most European MiniatureCircuit Breakers are only UL recognizedand CSA certified as “SupplementaryProtectors”, meaning they cannot beutilized as feeder or branch circuitprotective devices per the local electrical codes (NEC 240.10 and CECPart 1 C22.1). This commonly restrictstheir use to applications where “closer”protection is desired than that offeredby a branch circuit protection device.
• Control power transformers• Relays• Contactor coils• PLC I/O points• Lighting circuits• Power supplies• Computers• Electronic equipment
OverviewThe Eaton WMZS Supplementary Protectorsare used to provide overcurrent protectionwhere branch protection (for example, UL489 MCCB) is already provided or notrequired. The units can be installed as acomponent within, or as a part of an appliance or a piece of electrical equipment.Supplementary Protectors are ideal replacements for fuses that are applied as a supplementary protector, i.e. in addition to branchprotection (if required). They are 35 mmDIN rail mountable, utilizing spring clips.These are standard protectors, recognizedby UL and CSA under UL 1077 and CSA22.2. They are CE marked in accordancewith Low Voltage Directive (LVD)(73/23/EEC).
Product SpecificationThe WMZS Supplementary Protector is adual rated product for both AC and DCsupplies, in accordance with UL 1077 andCSA 22.2 standards and is marked with CEin accordance with the Low VoltageDirective. With this dual standard product,you can include it in your design, knowingthat in most cases wherever your equipmentis used, the product will conform to the localUL, CSA or IEC (European) requirements.
The Supplementary Protector is designed tobe applied in conjunction with a branchcircuit protector (if branch protection isrequired) and can be a replacement forsimilarly applied fuses. Its advantage overfuses is that it is resettable and the device’sstatus is easily and clearly identified by theposition of the handle and the flag indicator.
In addition, you can select a device thatprovides maximum reliability and accuracyto fit various applications due to the availability of a wide range of current ratingsfrom 0.5 to 63 amperes in three overcurrentcharacteristic curves, B, C and D.
Features and Benefits • Box Terminals accept #18 to #4 wire
(1 to 25mm2) for one wire connection or#18 to #8 for two wire connection.
• Thermal magnetic overcurrentprotection: three levels, categorized by B,C and D curves in direct relation tocontinuous rating of the device
B curve magnetic trip point:3 to 5 times the rated current,typically used for computers and
electronic equipment with very lowinrush loads (PLC wiring).C curve magnetic trip point:5 to 10 times the rated current,typically used for small transformers, pilot devices, etc. D curve magnetic trip point: 10 to 20 times the rated current,typically used for transformers or
loads with very high inductiveloads.
• Trip Free Design: Breaker cannot bedefeated by holding the handle in the“ON” position.
• Color coded status indicator window –Red = ON or Green = OFF
• IP20 finger protection• 35 mm DIN-rail mountable, utilizing
Supplementary protectors are not to be used in feeder circuits or motor circuits. Use themonly in applications where branch protection is already provided or is not required.
Circuit Protectionw w w . a u t o m a t i o n d i r e c t . c o m / c i r c u i t - p r o t e c t i o n e31–57
2.4 Nm 21.2 lb-inTwo wires 0.75 to 10 mm2 18 to 8 AWG
WMZS Series Selection Guide
General Specifications - WMZSSelectivity Class 3
Lifespan >10,000 (1 operation = ON/OFF)
Operating Temperature +23 to +104 °F (–5 to +40 °C)Storage Temperature -40 to +185 °F (–40 to +85 °C)Shock (IEC68-2-22) 10 g - 120 msHousing Material NylonMounting Position Vertical
Dimensions are approximate, inches (mm)- Not for construction purposes
WMS Accessory Data
Part Number Circuit Diagram Electrical CharacteristicsWireSize
(Solid and Stranded) Tightening Torque
mm2 AWG Nm lb-in
WMZSAUX12 14 11
Rated for general use, 2 amps at 230 VAC / 0.5 amp at 24/110 VDC
(1) 0.5 to 2.5(2) 0.5 to(2) 1.5
(1) 18 to 14(2) 18 to(2) 16
0.8 - 1.0 7.1 - 8.9
WMZSAUXTRIP See WMZSAUXTRIPdiagrams on next page
1 SPDT auxiliary contact and 1 SPDT alarm contact that can be configured and used as an auxiliary contact, rated for general use, 2 amps at 200 VAC / 0.5 amp at 24/110 VDC
WMZSST415
C2
C1110 - 415 VAC, 110 - 230 VDC operating range
1 to 2.5 18 to 12 2.4 21.2WMZSST110 12 - 110 VAC, 12 - 60 VDC operating range
WMZS Accessories Selection Guide
Part Number Description Contacts ModuleWidth
ModuleWeight Price
WMZSAUX• 1 NO / 1 NC• Installs on left side of WMZS or Shunt Trip• Maximum one per WMZS (1077) Device• Switches when WMZS is tripped electrically or manually
1 SPDT
0.35” (8.9mm) 0.15 lbs (68 g) <--->
WMZSAUXTRIP
• Small selector screw changes mode• Two Form C (One set Changeover) contacts• Installs on left side of WMZS or shunt trip• Auxilary contacts switch when WMZS is tripped electrically or manually.• Trip indicating contact switches only when WMZS is tripped electrically.
(2) Form CContacts
Part Number Description TripVoltage
ModuleWidth
ModuleWeight Price
WMZSST415• Allows remote trip of WMZS• Installs on left side of WMZS
WMZPLKLockout attachment for Eaton WMZS series supplementary protectors,suitable to prevent unauthorized activation of a de-energized circuit, accepts lock shackles up to 9/32 in. (7.1 mm) in diameter Qty: 5 pieces
0.10 lb (45 g) <--->
Lockout Attachment
1 94(49 3)2 39
(60 7)2 75
(69 9)
35(8 9)
2 82(71 6)
16(4 1)
20(5 1)
21(5 3)
23(5 8)
1 95(49 5)
3 15(80 0)
1 77(45 0)
63(16 0)
16(4 1)
WMZSAUXTRIP
3 36(85 3)
10(2 5)
22(55 9)
81(20 6)
1 03(26 2)1 22
(31 0)
13(3 3)
16(4 1)
63(16 0)
3 15(80 0)
2 82(71 6)
1 77(45 0)
1 95(49 5)
35(8 9)
WMZSAUX
2 60(66 0)
69(17 5)
2 89(73 4)
17(4 3)
11(2 8)
87(22 1)
35(8 9)
16(4 1)
63(16 0)
1 95(49 5)
3 15(80 0)
1 77(45 0)
WMZSSTxxx
Accessories Dimensions
.19” .28”(5.0 7.1mm)
WMZPLK Installation
Dimensions are approximate, inches (mm)- Not for construction purposes
Lock not sold byAutomationDirect
1 N 1 11 4 11
2 1 121 14 4 12
4 14N
OFF1 N 1 11 4 11
2 1 121 14 4 12
4 14N
SEL
ON OFFTRIP
1 N 1 11
2 1 121 14
N
4 11
4 124 14
1 N 1 11
2 1 121 14
N
4 11
4 14
4 12
4 11
4 14
4 12
SEL
ON OFFTRIP
1 N 1 11 4 11
2 1 12 4 12N
1 14 4 14
OFF1 N 1 11 4 11
2 1 12 4 12N
1 14 4 14
contact 4.xx in Auxilary modecontact 1.xx in Auxilary mode
contact 4.xx in Alarm modecontact 1.xx in Auxilary mode