What this 630 A MCCB delivers — and what it means for your panel
The SENTRON 3VA2463-5KP32-0BC0 is a 3-pole molded case circuit breaker rated for 630 A continuous current at 40 °C, with a maximum breaking capacity of 187 kA at 240 V AC — that is the fault-clearing headroom you need for high-available-fault-current service-entrance or main-tie applications where the utility transformer is close to the switchboard. At 415 V and 440 V it still holds 121 kA, and at 500 V it delivers 75.6 kA; only at 690 V does the rating drop to 9 kA, so for 690 V distribution you would need a different frame or a current-limiting upstream device. The continuous current derates with ambient temperature: 630 A at 40 °C, 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C — so if your panel ambient runs above 40 °C, the actual load you can protect is lower than the nameplate 630 A. This breaker is designed for line protection (not motor or generator protection), includes an undervoltage release and two HQ auxiliary switches, and supports communication functions — meaning it can report status and trip events to a BMS or PLC over a fieldbus, though the specific protocol is not listed here.
Lifecycle and sourcing — active, quoted to order
Availability and current pricing are confirmed at quote time against an RFQ; this is a quoted-to-order line item, not a shelf-stocked commodity, so expect the usual lead time for a 630 A frame breaker.
Physical fit and panel integration
The breaker measures 248 mm high, 138 mm wide, and 110 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures designed for SENTRON frames. No trip indicator is fitted on this variant, and there is no ground-fault monitoring module built in — if you need those, you would look at a different suffix within the 3VA2 family. The supplied basic switch is order code 3VA2463-5KP32-0AA0, and the auxiliary release is an undervoltage release (UVR) — verify the UVR coil voltage matches your control circuit before wiring.
Compliance and documentation
As a SENTRON product, this MCCB carries the usual IEC/UL certifications for molded case circuit breakers (IEC 60947-2, UL 489), and the manufacturer provides RoHS and REACH compliance declarations on request — the evidence does not list specific cert numbers, but these are standard for the series.