Three poles, line-protection design, with a breaking capacity of 242 kA at 240 V and 187 kA at 415/440 V.
The interrupting ratings drop off steeply above 500 V: 121 kA at 500 V, then 3.7 kA at 690 V. The 63 A frame holds a 95 A minimum to 756 A maximum magnetic trip range, so it coordinates with downstream branch breakers sized for motor or feeder loads.
Power loss is 4 W maximum, so internal cabinet heating from this breaker alone is negligible even in a sealed enclosure. The 4 auxiliary switches HQ are pre-wired at the factory; no add-on module required for status indication.