What this MCCB delivers
It is a 4-pole unit configured for line protection — meaning it sits at the feeder or main disconnect position in a distribution panel, not on a motor branch. The interrupting ratings are substantial: 187 kA at 240 V AC, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. Operating temperature range is -25 °C to 70 °C; above 50 °C the continuous current derates from 250 A down to 223 A at 70 °C.
Dimensions: 70 mm deep, 140 mm wide, 158 mm tall. The breaker accepts a 100 % rated N-conductor (full-size neutral), so it can serve as the main disconnect in a 4-wire system without derating the neutral path.
What the TM240 release means on a real line
The TM240 designation means the thermal-magnetic trip unit is calibrated for a 250 A frame. There is no ground-fault monitoring, no phase-failure detection, and no communication function on this variant. If your application requires adjustable long-time pickup, short-time delay, or ground-fault alarm, you would need a 3VA with an electronic trip unit (ETU) — this is the fixed-setting thermal-magnetic version, which is simpler and more robust for basic feeder protection where coordination studies are already set.