MCCB for line protection — 160 A continuous, 3-pole, TM240 release
Breaking capacity reaches 121 kA at 240 V and 75.6 kA at 415 V, which provides selectivity headroom for high-fault panelboards and main feeders.
Above that it derates stepwise: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. For a panel enclosure running at 60 °C ambient, plan for 150.4 A continuous — not the full 160 A.
The depth of 70 mm leaves room behind the panel door for wiring and auxiliary connections.
Auxiliary contacts and lifecycle
Two HQ auxiliary switches are integrated. No communication function, phase failure detection, or voltage trigger is present — this is a straight thermal-magnetic breaker for basic line protection.