The Siemens SENTRON 3VA1063-4ED36-0DC0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release. The interrupting ratings are 121 kA at 240 V and 75.6 kA at 415 V, which gives you headroom for high-fault panels without cascading upstream.
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.
Interrupting capacity and selectivity
The 3VA1063-4ED36-0DC0 delivers 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V.
Comes with 2 auxiliary switches (HQ version) and an integrated undervoltage release (UVR). The UVR is wired separately — if the control voltage drops, the breaker trips. That's useful for emergency-stop circuits or undervoltage protection on motor feeders. The integrated auxiliary trip order code is 3VA9608-0BB25, which is the factory-fit accessory if you need to replace it.