The Siemens SENTRON 3VA2463-6JP32-0HA0 is a 3-pole molded case circuit breaker rated for 630 A continuous current at 40 °C, designed for line protection in distribution panels and industrial switchgear. Adjustable trip unit covers 945 A to 5,670 A. Breaking capacity is 242 kA at 240 V AC and 187 kA at 415/440 V, dropping to 121 kA at 500 V and 9 kA at 690 V — figures that define the maximum fault current the breaker can safely interrupt at the point of installation.
Thermal derating and panel integration
The 630 A rating is at 40 °C ambient. At 50 °C it derates to 570 A, at 60 °C to 510 A, and at 70 °C to 450 A — a 28 % drop from the base figure. Panel builders should place this breaker where internal cabinet heat rise is accounted for in the continuous current budget. Dimensions are 248 mm high, 138 mm wide, and 110 mm deep, fitting standard MCCB mounting footprints in enclosed switchboards or open-panel assemblies. Maximum power loss is 162 W, a figure worth noting for enclosure thermal calculations when multiple breakers are ganged in a single cabinet.
Lifecycle and sourcing
The breaker includes a shunt trip release (STL) for remote tripping and a communication function for integration with higher-level monitoring systems — both factory-fitted, not field-addable options.