What this MCCB does and where it fits
The Schneider Electric C11E44V025B is a ComPacT NSXm moulded-case circuit breaker (MCCB) rated 25 A at 40 °C, with a 4-pole (4P) configuration and an electronic MicroLogic 4.1 trip unit. The electronic trip unit includes integrated earth-leakage protection with selectable sensitivity from 30 mA to 5 A, covering both class A and class AC residual current types. The toggle control and front-facing connections simplify panel wiring and manual operation.
The utilisation category A means it's not intended for frequent switching under load. Pollution degree 3 (IEC 60664-1) confirms it tolerates conductive pollution typical of industrial enclosures. Overvoltage category IV means it's rated for the main incoming supply, not just downstream sub-circuits.
Mounting and integration notes
Mounts on a backplate (not DIN rail) — horizontal or vertical, flat against the panel. The 108 mm width (12 x 9 mm pitches) and 144 mm height mean it occupies a standard MCCB footprint. Connection pitch is 35 mm with spreaders, 27 mm without — plan your busbar or lug layout accordingly. Both line and load connections are front-facing, compression lug or busbar. The grey (RAL 7016) housing is the standard industrial shade. The IK07 impact rating means it shrugs off light knocks during panel assembly.
