Micrologic Series B breaker trips on low currents without an indication on the LCD display

Product Line:
LE LX LXI ME MX NE NX PE PX SE circuit breakers

Resolution:
There are a number of possible reasons for a circuit breaker to trip without indication.
1. First, check for proper wiring and operation of the control circuits (if present).
2. If there is no shunt trip or UVR, or if proper signals are verified, we must assume the trip unit is bad, and the breaker must be replaced with a PowerPacT or MasterPact breaker.

Released for: Schneider Electric Canada