The Siemens 3VA1063-3ED36-0CA0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current at 40 °C, 3-pole, configured for line protection with a TM210 thermal-magnetic trip unit. This is the core overcurrent device for a feeder or branch circuit — not a motor-protective breaker with integrated phase-loss detection. The TM210 holds its full 63 A rating up to 50 °C, then derates linearly: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. That derating curve matters if this lands in a sealed, uncooled enclosure near heat sources. Short-circuit breaking capacities span 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — enough headroom for most 400 V industrial distribution panels to meet the 50 kA SCCR target without cascading upstream.
Trip unit and auxiliary options
The TM210 is a fixed thermal-magnetic release — no electronic adjustability, no communication module, no ground-fault monitoring. For selectivity studies, the thermal curve is fixed, so coordination with downstream breakers depends on the manufacturer's let-through charts. This variant ships with an undervoltage release (UVR) factory-installed (design code 3VA9608-0BB24). No auxiliary contact block is included on this order code; if you need remote status feedback, you add a separate auxiliary switch module. The IP40 front protection means it is suited for dead-front panel mounting but not for washdown areas.