What this MCCB delivers on the line side
The Siemens 3VA1163-5ED32-0JA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous at 40 °C, with a TM210 thermal-magnetic trip unit — meaning it handles overload and short-circuit protection in one package, no external relay needed. Breaking capacity hits 187 kA at 240 V AC, dropping to 121 kA at 415 V and 75.6 kA at 440 V — enough headroom for most industrial distribution panels where fault currents can spike on transformer secondaries. Rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V class systems without derating the insulation path.
Thermal derating and panel fit
At 40 °C ambient the breaker carries a full 63 A; at 55 °C it's still good for 62 A, and at 70 °C it holds 58 A — minimal derating curve, which simplifies panel layout when the breaker sits near other heat sources. Dimensions are 70 mm deep by 76.2 mm wide by 130 mm high, so it fits standard Siemens 3VA1 panel cutouts and busbar systems without adaptor plates.
What the TM210 release and shunt trip mean for commissioning
The TM210 overcurrent release is a fixed thermal-magnetic type — thermal element for overload, magnetic for short-circuit. No interchangeable trip block, so the 63 A rating is locked to this unit. A shunt trip (STL) auxiliary release is built in, allowing remote tripping from a PLC or emergency-stop circuit. No undervoltage release on this variant, so the breaker stays closed on control power loss — intentional for applications where a voltage-dip shouldn't drop the load. No communication function or ground-fault monitoring on this order code — it's a straight line-protection MCCB, not a metering or GFCI device.