The Siemens 3VA2463-6HN32-0HL0 is a SENTRON molded case circuit breaker (MCCB) rated for 630 A continuous current at 40 °C, with a 3-pole configuration and line protection design. Its interrupting capacity reaches 242 kA at 240 V and 187 kA at 415 V — enough to handle high-fault utility feeds or transformer secondaries without cascading upstream breakers.
Breaking capacity and selectivity
At 415 V the 3VA2463-6HN32-0HL0 clears 187 kA; at 500 V it still holds 121 kA. The curve drops to 9 kA at 690 V, which still covers most 690 V distribution panels. These numbers matter for selectivity coordination — the breaker can sit upstream of smaller MCCBs and still let a downstream fault clear first, as long as the downstream breaker's let-through stays under the upstream withstand.
Dimensions are 110 mm deep, 138 mm wide, 248 mm tall — fits standard SENTRON 3VA panel cutouts and busbar centers. Maximum power loss is 162 W at full load, so ventilation slots in the enclosure should account for that heat. Operating temperature range is -25 °C to 70 °C; storage handles -40 °C to 80 °C. Current derates with ambient: 630 A at 40 °C, 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, 520 A at 70 °C.