The Schneider Electric C11N44V025B is a ComPacT NSXm 4-pole moulded-case circuit breaker with a 25 A electronic trip unit (MicroLogic 4.1) and a 50 kA interrupting capacity at 415 V AC — that's the short-circuit rating that determines whether it clears a fault without upstream damage in a 415 V distribution board. The MicroLogic 4.1 is an electronic trip unit with integrated earth-leakage protection — adjustable sensitivity from 30 mA to 5 A for class A or class AC residual currents. That means this single device covers both overcurrent and ground-fault protection, saving a separate RCCB or RCBO in the panel. The thermal memory remembers the last 20 minutes of heating before and after tripping, so it won't reclose immediately onto a still-hot load.
The 12-module 9 mm pitch width (108 mm) and 144 mm height fit standard distribution panel cutouts. Connections are front-facing — both line and load — using compression lugs or busbars. The IP40 front face and IK07 impact rating mean it's protected against tool drops and dust ingress inside a closed panel; it's not rated for washdown environments.