The SENTRON 3VA2463-5HN32-0KA0 is a 3-pole molded case circuit breaker rated for 630 A continuous at 40 °C, with a maximum breaking capacity of 187 kA at 240 V and 121 kA at 415 V. The built-in shunt trip (STL) release allows remote tripping from a pushbutton or safety relay, which is the main differentiator from the base version (3VA2463-5HN32-0AA0) that carries no auxiliary release. At 110 mm deep, 138 mm wide, and 248 mm tall, this breaker fits standard SENTRON mounting footprints.
The interrupting rating drops as system voltage rises: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. For a 480 V distribution panel (common in North American industrial plants), the relevant figure is the 500 V rating — 75.6 kA — which is well above what most secondary substations deliver.
Above that, the breaker derates linearly: 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C. If the panel ambient runs at 50 °C — common in a packed MCC room with no air conditioning — the usable current drops to 593 A.