63 A, 4-pole, 75.6 kA — line protection MCCB with undervoltage release
The interrupting capacity hits 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — enough to handle high-fault industrial feeders without cascading upstream. That makes this unit a natural fit for motor branch circuits where you need undervoltage protection to prevent automatic restart after a sag. The integrated auxiliary contact version carries 2 auxiliary switches plus a separate trip alarm switch, so the PLC gets both position and fault status without extra wiring.
Derating curve and operating range
Above that, the thermal element starts pulling back: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C.
At 415 V it still handles 52.5 kA, and at 440 V it drops to 32 kA. The TM210 release provides thermal protection for overloads and magnetic protection for short-circuits; no ground-fault monitoring or phase-failure detection is built in.