What this 630 A MCCB carries
The Siemens SENTRON 3VA2463-7HL32-0CA0 is a 3-pole molded case circuit breaker rated for 630 A continuous current at 40 °C, with an adjustable thermal-magnetic trip unit covering 945 A to 5,670 A — that's 1.5x to 9x the frame rating, so you set the pickup to match the downstream cable or load without swapping the breaker body. Breaking capacity scales with system voltage: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V. At 415 V that is a very high interrupting rating for a 630 A frame — it handles faults on large transformer secondaries or industrial bus risers without cascading upstream. Thermal derating is published per degree from 40 °C to 70 °C: 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. In a hot switchroom or enclosed panel you apply these directly — no guesswork.
Line protection design with undervoltage release
No auxiliary switch is fitted from the factory; the basic switch assembly is order code 3VA2463-7HL32-0AA0. If you need a signal contact for the panel PLC or status lamp, that is a separate add-on module. Dimensions are 248 mm tall, 138 mm wide, 110 mm deep — a 3-pole 630 A frame that fits standard SENTRON mounting plates.