The C125H360FM is a fixed-mount, manually operated 3-pole ComPacT NS new generation molded-case circuit breaker from Schneider Electric. It carries a MicroLogic 6.0 electronic trip unit rated 1250 A at 50 °C, providing LSI protection (long-time, short-time, instantaneous) plus ground-fault (G) on the same trip unit. Breaking capacity reaches 85 kA Icu at 240 V AC and 70 kA Icu at 415 V AC per EN/IEC 60947-2. The 70 mm connection pitch and backplate mounting suit it for distribution switchboards where a high-amp feed needs coordination downstream.
At 415 V the Icu drops to 70 kA, still high enough to clear most industrial service-entrance faults without cascading upstream. The MicroLogic 6.0 trip unit is fully electronic, so it holds a thermal memory of 20 minutes — after a prolonged overload the breaker remembers the thermal history and shortens the next trip time, protecting cables and busbars from cumulative heating. Mechanical durability is rated at 10,000 cycles; electrical durability varies with load — 2,000 cycles at 690 V In, 4,000 cycles at 440 V In. That means in a high-cycle distribution feeder (frequent on/off switching), plan for contact maintenance or replacement earlier than the mechanical count suggests. The IP40 enclosure keeps out tools and small debris but not water — mount it in a dry, indoor panel.
The C125H360FM is current production. It is part of the ComPacT NS630b…1600 new generation family, the active platform replacing the earlier NS series.