UL 1077 DIN Rail Supplementary Protectors - Eaton

1 Product GuideUL 1077 DIN rail Supplementary Protec tors1eaton corporation UL 1077 DIN rail Supplementary ProtectorsUL 1077 DIN rail Supplementary Protec torsProduct Overview .. 2 Product SelectionWMZS B Curve (3 5X In Current Rating).. 4 WMZS C Curve (5 10X In Current Rating) .. 5 WMZS D Curve (10 20X In Current Rating) .. 6 Accessories .. 7 Technical Data .. 102UL 1077 DIN rail Supplementary ProtectorsWMZS circuit BreakersPRODUCT OVERVIEW Eaton corporation UL 1077 DIN rail Supplementary ProtectorsEaton s WMZS line of miniature circuit breakers includes a broad range of devices defined as Supplementary Protectors . These breakers comply with ULT 1077 and CSAT No. 235 regulations defining Supplementary overcurrent protection. In these applications, branch circuit protection is not required, or is provided by a separate device like a fuse or molded case circuit breaker .

2 WMZS Supplementary Protectors are typically used for control circuits, lighting, business equipment, appliances and a range of other applications where closer protection is desired than that offered by a branch circuit protection device. Extensive Product RangeEaton s Supplementary Protectors are available in 1-, 2- and 3-pole configurations and 20 different current ratings from to 63A. Three different trip characteristics, including B, C and D curves, give you the ability to configure the exact protection scheme you require. Devices can be used in applications up to 480 Vac and 48 Vdc with short- circuit ratings up to 10 of InstallationAll breakers mount on a standard 35 mm DIN rail . Each device has box terminals that accept multiple conductors. Bus connectors and feeder terminals facilitate mounting and wiring of multiple miniature circuit breaker arrays in control panel assemblies.

3 Power to the circuit breakers can also be fed from the line or load FeaturesWMZS breaker terminals provide finger and back-of-hand protection to guard against accidental contact with live color-coded red/green indicator provides immediate visual indication of device status (green for OFF, red for ON) and isolation WMZS breakers also incorporate a trip-free mechanism. This prevents the trip function from being defeated by holding the operator in the ON AcceptanceWMZS Supplementary Protectors are UL Recognized for use in the United States in accordance with NFPAT 70 (NECT). The devices comply with UL 1077 and CSA No. 235, meeting the requirements for Supplementary Protectors . These devices also comply with IEC 60947-2 and are CE marked. These devices are RoHS OverviewUL 1077 Din rail Supplementary protectorsWMZS circuit Breakersproduct overview3UL 1077 DIN rail Supplementary ProtectorsWMZS circuit BreakersPRODUCT OVERVIEW Eaton corporation UL 1077 DIN rail Supplementary ProtectorsDiscover These Advanced FeaturesThree Tripping Curves to ChooseEaton WMZS Supplementary Protectors are available with three different tripping characteristics, including Type B, C and D.

4 Definitions for each trip curve are contained on the ordering pages and can be used to determine the optimal characteristic for your application. For example, low level short- circuit faults in control wiring, such as PLCs, are best protected by devices with Type B trip characteristics (3 to 5X continuous rating of the device (In).Even though not required by NEC or CEC for Supplementary Protectors , Eaton s WMZS devices are current limiting, which means they interrupt fault currents within one half cycle. Current limiting devices offer superior protection by reducing peak let-through current and [sec]NI / characteristic acc. to UL 1077a conventional non-tripping current Int = IN: t > 1 hb conventional tripping current It = IN: t < 1 hc IN: t = 1 60 s (IN < 32A) t = 1 120 s (IN < 32A)d Type B: 3 IN: t > se Type B: 5 IN: t < sf Type C: 5 IN: t > sg Type C: 10 IN: t < sh Type D: 10 IN: t > si Type D: 20 IN.)

5 T < sCatalog Numbering SystemWMZS 1 B 10 breaker FamilyWMZS = Supplementary ProtectorNumber of Poles1 = 1-Pole2 = 2-Pole3 = 3-PoleProtective Curve B = B Curve (3 5X In) C = C Curve (5 10X In)D = D Curve (10 20X In)Ampere Rating00 = Amps01 = 1 Amps02 = 2 Amps03 = 3 Amps04 = 4 Amps05 = 5 Amps06 = 6 Amps07 = 7 Amps08 = 8 Amps 10 = 10 Amps13 = 13 Amps15 = 15 Amps16 = 16 Amps20 = 20 Amps25 = 25 Amps30 = 30 Amps32 = 32 Amps40 = 40 Amps50 = 50 Amps63 = 63 AmpsCaptive posidrive terminal screws with finger and back-of-hand protection (IP20)Trip-free design; breaker cannot be defeated by holding the handle in the ON positionBreaker information printed on the front of the device for quick identificationBreakers install on standard DIN railAvailable in 1-, 2- and 3-pole modelsColor-coded indicator provides breaker status for easy troubleshootingProduct Overview4UL 1077 DIN rail Supplementary ProtectorsWMZS circuit BreakersPRODUCT SELECTION Eaton corporation UL 1077 DIN rail Supplementary ProtectorsFor our complete product offering, see the Distribution Products Catalog (CA08101001E).

6 WMZS Product Selection B Curve (3 5X In Current Rating) Designed for resistive or slightly inductive loads Response time of instantaneous trip: 3 5X In current rating UL Recognized and CSA Certified as Supplementary Protectors For international and domestic use (conform to IEC 60947-2)Suitable for applications where protection against low level short circuit faults in control wiring is desired. Instantaneous trip is 3 5X continuous rating of device (In). Applications include PLC wiring, business equipment, lighting, appliances and some motors. Low magnetic trip Curve (3 5X In Current Rating) Designed for Resistive or Slightly Inductive Loads aAmperes1-Pole 2-Pole 3-Pole Catalog NumberCatalog NumberCatalog Number678 WMZS1B06 WMZS1B07 WMZS1B08 WMZS2B06 WMZS2B07 WMZS2B08 WMZS3B06 WMZS3B07 WMZS3B08101315 WMZS1B10 WMZS1B13 WMZS1B15 WMZS2B10 WMZS2B13 WMZS2B15 WMZS3B10 WMZS3B13 WMZS3B15162025 WMZS1B16 WMZS1B20 WMZS1B25 WMZS2B16 WMZS2B20 WMZS2B25 WMZS3B16 WMZS3B20 WMZS3B25303240 WMZS1B30 WMZS1B32 WMZS1B40 WMZS2B30 WMZS2B32 WMZS2B40 WMZS3B30 WMZS3B32 WMZS3B4050 63 WMZS1B50 WMZS1B63 WMZS2B50 WMZS2B63 WMZS3B50 WMZS3B63a In North America, these switches are UL recognized and CSA certified as Supplementary Protection devices.

7 Per the intent of NEC (National Electrical Code), Article 240, and CEC (Canadian Electrical Code), Part 1 , Supplementary breakers cannot be used as a substitute for the branch circuit protective device. They can be used to provide overcurrent protection within an appliance or other electrical equipment where branch circuit overcurrent protection is already provided, or is not required. [sec]NI / non-tripping currentINT = x IN for t > 1 hSpecified tripping currentIT = x IN for t < 1 ha IN: t = 1 60 s (IN < 32A) t = 1 120 s (IN > 32A)b Type B: 3 x IN: t > sc Type B: 5 x IN: t < sd Type C: 5 x IN: t > se Type C: 10 x IN: t < sf Type D: 10 x IN: t > sg Type D: 20 x IN: t < sProduct Selectionproduct Selection5UL 1077 DIN rail Supplementary ProtectorsWMZS circuit BreakersPRODUCT SELECTION Eaton corporation UL 1077 DIN rail Supplementary ProtectorsWMZS Product Selection C Curve (5 10X In Current Rating) Designed for inductive loads Response time of instantaneous trip: 5 10X In current rating UL Recognized and CSA Certified as Supplementary Protectors For international and domestic use (conform to IEC 60947-2)Suitable for applications where medium levels of inrush current are expected.

8 Instantaneous trip is 5 10X rating of device (In). Applications include small transformers, lighting, pilot devices, control circuits, and coils. Medium magnetic trip Curve (5 10X In Current Rating) Designed for Inductive Loads aAmperes1-Pole 2-Pole 3-Pole Catalog NumberCatalog NumberCatalog In North America, these switches are UL recognized and CSA certified as Supplementary Protection devices. Per the intent of NEC (National Electrical Code), Article 240, and CEC (Canadian Electrical Code), Part 1 , Supplementary breakers cannot be used as a substitute for the branch circuit protective device. They can be used to provide overcurrent protection within an appliance or other electrical equipment where branch circuit overcurrent protection is already provided, or is not [sec]NI / non-tripping currentINT = x IN for t > 1 hSpecified tripping currentIT = x IN for t < 1 ha IN: t = 1 60 s (IN < 32A) t = 1 120 s (IN > 32A)b Type B: 3 x IN: t > sc Type B: 5 x IN: t < sd Type C: 5 x IN: t > se Type C: 10 x IN: t < sf Type D: 10 x IN: t > sg Type D: 20 x IN: t < sFor our complete product offering, see the Distribution Products Catalog (CA08101001E).

9 Product Selection6UL 1077 DIN rail Supplementary ProtectorsWMZS circuit BreakersPRODUCT SELECTION Eaton corporation UL 1077 DIN rail Supplementary ProtectorsWMZS Product Selection D Curve (10 20X In Current Rating) Designed for highly inductive loads Response time of instantaneous trip: 10 20X In current rating UL Recognized and CSA Certified as Supplementary Protectors For international and domestic use (conform to IEC 60947-2)Suitable for applications where high levels of inrush current are expected. Instantaneous trip is 10 20X rating of device (In). The high magnetic trip point prevents nuisance tripping in high inductive applications such as motors, transformers and power Curve (10 20X In Current Rating) Designed for Inductive Loads aAmperes1-Pole 2-Pole 3-Pole Catalog NumberCatalog NumberCatalog In North America, these switches are UL recognized and CSA certified as Supplementary Protection devices.

10 Per the intent of NEC (National Electrical Code), Article 240, and CEC (Canadian Electrical Code), Part 1 , Supplementary breakers cannot be used as a substitute for the branch circuit protective device. They can be used to provide overcurrent protection within an appliance or other electrical equipment where branch circuit overcurrent protection is already provided, or is not [sec]NI / non-tripping currentINT = x IN for t > 1 hSpecified tripping currentIT = x IN for t < 1 ha IN: t = 1 60 s (IN < 32A) t = 1 120 s (IN > 32A)b Type B: 3 x IN: t > sc Type B: 5 x IN: t < sd Type C: 5 x IN: t > se Type C: 10 x IN: t < sf Type D: 10 x IN: t > sg Type D: 20 x IN: t < sAccessories7UL 1077 DIN rail Supplementary ProtectorsWMZS circuit BreakersACCESSORIES Eaton corporation UL 1077 DIN rail Supplementary ProtectorsAuxiliary Contacts and Voltage TripsModuleCircuit DiagramDescriptionRated Operational VoltageCatalog NumberStandard Auxiliary Contacts214 1112H 1NO / 1NC Installs on Left Side of WMZS or Shunt Trip Max.