160 A MCCB with TM240 release — panel fit and breaking performance
Its TM240 thermal-magnetic release handles overloads and short circuits without an external trip unit — a common choice for fixed-load feeder circuits where adjustable electronic trip isn't required. Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V, so it can interrupt high-fault currents on secondary-side transformers or bus risers without cascading upstream. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits SENTRON mounting plates and most DIN-rail adapter kits.
Above that it derates gradually: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. Maximum power loss is 38 W at rated load. That's moderate for a 160 A frame; factor it into enclosure thermal calculations if you're stacking multiple breakers in a confined space.