Circuit Breaker Maintenance Counters

Presentation

The maintenance indicator helps to anticipate the replacement of the breaking block before mechanical or electrical breakdown. Circuit breaker service life depends on the daily number of operating cycles with or without current.

TBC@experts, add here indications valid for MTZ here, For more information about the maximum number of operating cycles, refer to MasterPact MTZ Catalogue.

Operating Principle

Each time the circuit breaker operates (performs an open and close cycle with or without current), the corresponding mechanical and electrical operating counters are incremented.

The list of maintenance counters:

Counter of total operations
Total trip operations
Counter of long-time trips
Counter of short-time trips
Counter of instantaneous trips
Counter of ground-fault trips
Counter or trips during tests

Data Availability

TBC@experts

Data is available with EcoStruxure Power Device app through NFC wireless communication.