The Siemens SENTRON 3VA1050-3ED36-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 50 A continuously at 40 °C through 50 °C ambient, with a TM210 thermal-magnetic overcurrent release and an integrated shunt trip (STL). Breaking capacity is voltage-dependent: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V — giving the SCCR headroom for most industrial distribution panels fed from a transformer secondary up to 690 V.
Above that, current must be reduced: 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. The storage limit governs handling during transport and warehouse hold, not running duty.
The 3VA1050-3ED36-0HA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. The 76.2 mm width (3 inches) is the standard 3-pole MCCB footprint for this SENTRON generation — it occupies the same DIN-rail or mounting-plate slot as other 3VA frame breakers.