The Siemens SENTRON 3VA1063-2ED36-0KA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A at 40 °C, designed for line protection in distribution panels and industrial switchgear. It carries a TM210 thermal-magnetic overcurrent release and an integrated shunt trip (STL) auxiliary release for remote tripping. Breaking capacity is 52.5 kA at 240 V AC, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at both 500 V and 690 V — figures that govern its fault-interrupting capability in different supply configurations. The rated insulation voltage is 800 V.
Thermal derating and ambient limits
The 63 A rating holds from 40 °C up to 50 °C. Above that, derating is linear: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. Operating ambient range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. Maximum power loss is 17.3 W. Dimensions are 70 mm deep, 76.2 mm wide, and 130 mm high — a standard 3-pole MCCB footprint that fits SENTRON panelboards and DIN-rail adapters without extra fillers.