DOCA0265EN-03

Monitoring the Circuit Breaker Service Life

Presentation

The MicroLogic Active control unit service life screen with status bar helps 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. For more information about the service life and the maximum number of operating cycles, refer to MasterPacT MTZ Catalog.

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. Based on these counters, the MicroLogic Active control unit calculates two service life ratios as a percentage of the maximum number of mechanical and electrical operations.

Data Availability

Service life monitoring data is available with EcoStruxure Power Device app through NFC connection.

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