What this 160 A MCCB does on the line
Its TM240 thermal-magnetic release handles overloads and short-circuits without external trip units, keeping the BOM simple.
At 440 V the interrupting rating drops to 75.6 kA, and at 500 V or 690 V it holds at 17 kA. Thermal derating is mild: 160 A holds flat from 40 °C to 50 °C, then steps down to 150 A at 70 °C. No surprise trip on a hot summer day in a non-climate-controlled enclosure.
Footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — 4 inches wide, which is standard for a 160 A frame. Ships with two HQ auxiliary switches pre-installed, so you get status feedback without ordering a separate accessory kit. Max power loss is 38 W; factor that into enclosure ventilation if you're stacking several in a row.