The Siemens 3VA2463-6HL32-0HL0 is a SENTRON molded case circuit breaker rated for 630 A continuous current at 40 °C, with a maximum breaking capacity of 242 kA at 240 V AC. The 630 A frame size suits main feeder or large motor circuit protection in 400 V to 690 V distribution. The shunt trip release (STL) allows remote tripping from an emergency stop or supervisory system — wired separately, it fires the breaker open on command.
Above that, the continuous current must be derated per the datasheet curve: 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. Maximum power loss is 162 W, which contributes to the enclosure's internal heat rise.
The interrupting rating varies with system voltage: 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 40 kA at 690 V.
Dimensions are 248 mm height, 138 mm width, 110 mm depth — a standard 3-pole MCCB footprint for the 630 A frame class. The breaker mounts with four screws to a backplate or mounting bracket; it does not snap onto DIN rail. Allow clearance above and below for arc-chute exhaust and for the shunt trip and auxiliary wiring. The 3VA2463-6HL32-0HL0 ships with the basic switch 3VA2463-6HL32-0AA0 and the integrated auxiliary trip 3VA9688-0BL30.