ComPacT NSX160B — 100 A thermal-magnetic MCCB
It is a 4-pole device (4P) with toggle control, rated for distribution applications per EN/IEC 60947-2. The breaking capacity code B delivers 25 kA Icu at 380/415 V AC 50/60 Hz, 40 kA Icu at 220/240 V AC, and 20 kA Icu at 440 V AC — figures that define the fault-current headroom at the point of installation. The thermal-magnetic trip provides L (overload) and I (short-circuit) protection, with no integral earth-leakage protection.
For selectivity studies, the Category A utilisation classification means the breaker is not intended for cascading with downstream devices under short-circuit conditions; coordination must be verified with upstream devices. IK07 impact resistance confirms it withstands a 2 J impact, typical for distribution boards.
The breaker mounts on a backplate in either horizontal or vertical orientation, flat on the back. Front connections on both upside and downside simplify busbar and cable routing in a panel. The 35 mm connection pitch matches standard DIN-rail-mount busbar systems. Dimensions are 161 mm height, 140 mm width, 86 mm depth. The neutral position is left with no neutral protection setting (3D) per — confirm the neutral conductor protection scheme for your system.