Its adjustable thermal-magnetic trip unit covers a 95 A to 756 A range, letting you dial in the overload and short-circuit thresholds to match the downstream load without swapping the breaker body. The interrupting capacity hits 440 kA at 240 V AC, 330 kA at 415 V, and 220 kA at 500 V — enough headroom for high-fault industrial services where the available short-circuit current is well above typical panel ratings.
The 63 A frame holds its rating across the full -25 °C to 70 °C operating range with no derating — the spec table shows 63 A at every 5 °C step from 40 °C through 70 °C, so you don't have to oversize for a warm enclosure.
Ground-fault and monitoring
This variant includes summation-current ground-fault monitoring on L + N conductors, so it can detect leakage to earth without a separate GFCI module.
Width of 140 mm for a 4-pole frame is typical for this class; check the busbar or lug spacing against your existing panel layout before ordering.