The Schneider Electric C12H3TM160B is a ComPacT NSXm moulded-case circuit breaker with a TM-D thermal-magnetic trip unit, rated 160 A at 40 °C, 3-pole, and a breaking capacity of 70 kA at 415 V AC — that H performance level means it can safely interrupt fault currents up to 70 kA without upstream cascading, sized for high-fault distribution panels where the available short-circuit current is substantial. Above that, you derate per the thermal curve.
The 81 mm width and 137 mm height fit standard distribution panel layouts. Connection is front-facing on both line and load sides, using compression lugs or busbars. The 35 mm connection pitch with spreaders (27 mm without) matches common busbar systems. IP40 enclosure protection means it is suited for indoor panels where dust and small objects are excluded — not for washdown or outdoor use. The IK07 impact rating handles light mechanical knocks during panel assembly. The toggle control gives a clear on/off visual, and the flag indicator (green) shows when auxiliary contacts are present — handy for panel builders wiring status feedback back to a PLC.
Suitable for isolation per that standard. Pollution degree 3 (conforming to IEC 60664-1) means it handles conductive pollution in industrial environments. Overvoltage category III covers fixed-installation distribution panels.