The Siemens SENTRON 3VA2225-5JP32-0JA0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, designed for line protection in distribution panels and motor control centers. It carries a shunt trip release (STL) for remote tripping, a communication function for integration into higher-level monitoring, and no undervoltage release, no auxiliary switch, and no ground-fault monitoring module on this variant. Rated short-circuit breaking capacity is 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V — the SCCR curve covers the full low-voltage range for selectivity studies. Thermal derating begins at 55 °C: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, 200 A at 70 °C. The maximum power loss is 48 W.
Physical Fit and Integration
Dimensions are 181 mm height, 105 mm width, 86 mm depth — the 86 mm depth is the critical dimension for panel depth clearance behind the door or into a switchboard bucket. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The 70 °C upper operating limit matches the top of the derating curve — at that ambient you carry 200 A, not the full 250 A nameplate.
SCCR and Selectivity Notes
For coordination studies: the 187 kA at 240 V and 121 kA at 415 V give headroom for high-fault installations behind large transformers. The trip indicator is absent on this variant; the voltage trigger is present, meaning the shunt trip can be wired for undervoltage or remote trip via the STL coil.