The Schneider Electric C12B6TM160B is a ComPacT NSXm moulded-case circuit breaker (MCCB) with a 160 A rated current at 40 °C and a 25 kA breaking capacity at 415 V AC — that performance level B rating means it clears faults up to 25 kA without upstream fuses needing to coordinate, which simplifies panel design in distribution boards where the prospective short-circuit current is known to stay under that threshold.
Ratings and fit
Four-pole (4P) construction with the neutral on the left, thermal-magnetic TM-D trip unit providing overload and short-circuit protection in one block. Mounts on a backplate in horizontal or vertical orientation, flat on the back. The 108 mm width spans 12 module pitches at 9 mm, so it occupies the same footprint as twelve single-pole MCBs on a DIN rail, though this breaker uses a backplate mount rather than snapping onto a rail. Connection is front-facing via compression lugs or busbars, with a 35 mm pitch when using spreaders, 27 mm without. IP40 finger protection on the front face, IK07 impact resistance — adequate for enclosed distribution boards where the breaker is not exposed to tools or washdown.
Electrical durability is rated at 20,000 cycles at 440 V at rated current, halved to 10,000 cycles at twice rated current — the mechanical endurance matches at 20,000 cycles.
The toggle handle gives local on/off control; a green flag signals when auxiliary contacts are present. No earth-leakage protection built in — if ground-fault detection is required, you add a separate Vigi module or an external RCD upstream.