Eaton Industries

Type WMZS Supplementary Protectors

Eaton’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 22.2 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.

Type WMZS Supplementary Protectors

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 Range

Eaton’s Supplementary Protectors are available in 1-, 2- and 3-pole configurations and 20 different current ratings from 0.5A 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 kA.

 

Ease of Installation

All 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. Power to the circuit breakers can also be fed from the line or load side.

 

Standard Features

WMZS breaker terminals provide finger and back-of-hand protection to guard against accidental contact with live parts. A color-coded red/green indicator provides immediate visual indication of device status (green for OFF, red for ON) and isolation function. All WMZS breakers also incorporate a “trip-free” mechanism. This prevents the trip function from being defeated by holding the operator in the ON position.

 

Worldwide Acceptance

WMZS 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 22.2 No. 235, meeting the requirements for supplementary protectors. These devices also comply with IEC 60947-2 and are CE marked.