It carries a continuous current of 100 A up to 50 °C ambient, then derates to 91 A at 70 °C — so for a 100 A feeder in a warm panel, you need to account for the thermal curve above 55 °C where it drops to 98 A. The interrupting ratings are substantial: 121 kA at 240 VAC, 76 kA at 415 VAC, 40 kA at 440 VAC, and 12 kA at 500 VAC.
Thermal-magnetic release and selectivity
The overcurrent release is a TM210 — a thermal-magnetic type with a fixed time-delay short-circuit pickup. Minimum trip time is 1 s, so it coordinates with downstream breakers that clear faster. No ground-fault monitoring, no undervoltage release, no communication function — this is a straight line-protection MCCB, not a smart breaker.
Mounting and environment
Front protection is IP40 — suitable for a clean, dry panel interior but not washdown. No trip indicator, no voltage trigger.
