63 A MCCB with TM210 release and shunt trip
The Siemens SENTRON 3VA1063-3ED32-0HA0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release. Interrupting capacity reaches 75.6 kA at 240 V and 52.5 kA at 415 V — figures that give the panel designer real SCCR headroom for high-fault utility feeds or transformer-secondaries.
Interrupting performance across voltages
At 440 V the breaker clears 32 kA, and at 690 V it still handles 7.5 kA. These ratings matter for selectivity coordination downstream of a larger MCCB or fused switch — the 3VA1063 can be the main feeder breaker in a sub-panel, letting downstream 10 kA or 18 kA devices ride through a fault without cascading.
At 55 °C it derates to 60.48 A, at 60 °C to 59.22 A, at 65 °C to 57.96 A, and at 70 °C to 56.7 A. Ambient temperature in the enclosure matters — if the panel runs hot from adjacent drives or transformers, the continuous current capability drops by about 10% at the top of the range.
Width is 76.2 mm (roughly 3 inches), depth 70 mm, height 130 mm.
This variant ships without auxiliary contacts or an undervoltage release. The shunt trip is the only integrated release — ordered separately as 3VA9688-0BL30 if you need the trip unit itself.