Circuit breaker accessory Hager MZN175 — auxiliary contact block for Hager devices

Hager MZN175 is an auxiliary contact block designed to attach to compatible Hager circuit breakers. It provides a reliable electrical contact that changes state with the position of the breaker, enabling remote indication of ON/OFF status and integration into signalling, interlocking or control circuits within electrical distribution and control panels.

Advantages

The accessory offers a compact mechanical design that mounts directly to the breaker without altering the primary trip function. It supplies a clear change of state synchronized with the breaker position, supporting monitoring and automation tasks. The unit is manufactured to fit Hager breakers precisely, ensuring consistent electrical connections and predictable behavior in control systems.

Suitable for

Key specifications

How to use

Attach the auxiliary contact block to the designated interface on a compatible Hager circuit breaker following the breaker manufacturer’s mechanical and wiring instructions. Connect the contact terminals into the control, signalling or monitoring circuit using appropriate conductor sizes and protective devices. Verify correct electrical wiring and mechanical engagement by operating the breaker and observing the contact state change through the connected indicator or monitoring equipment.

Recommendations

Ensure power is isolated before installation or servicing. Use the accessory only with compatible Hager breakers and follow local electrical codes. Verify contact ratings and wiring suitability for the control circuit voltages and currents in your installation.