Rated 63 A continuous on a 3-pole frame, it's built to handle the main feed or a large subfeed in an industrial switchboard. Breaking capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V and at 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. It carries a communication function and ground-fault monitoring via summation current formation on the L-conductor, so it can talk to a higher-level system and report ground faults without a separate relay.
Three poles, so it's a straight swap for any 3-pole MCCB in the same current class.
Environmental and electrical limits
Maximum power loss is 5.4 W — negligible for panel heat budgeting.