The Siemens SENTRON 3VA2225-8HL32-0CC0 is a molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, 3-pole, designed for line protection. It carries an undervoltage release (UVR) and two auxiliary switches HQ, making it a drop-in for panels that need both overcurrent protection and remote status feedback. The interrupting ratings are the headline here: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. That SCCR curve means it handles high-fault utility feeds without cascading upstream — a solid choice for main or tie breaker duty in a 480 V panel where available fault current is north of 200 kA.
Thermal derating and power loss
Continuous current holds at 250 A from 40 °C through 50 °C, then steps down: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. If your panel ambient runs hot, the 70 °C derate to 213 A is the figure to size against. Maximum power loss is 50.5 W — negligible for ventilation planning in a standard enclosure.
Physical fit and integration
Dimensions: 105 mm wide, 181 mm tall, 86 mm deep. That 105 mm width is the standard 3-pole MCCB footprint for this frame size — it fits the same DIN-rail or panel-mount cutout as other 250 A SENTRON breakers. The basic switch variant is 3VA2225-8HL32-0AA0; this -0CC0 adds the UVR and two aux switches, so verify panel wiring for the release coil and aux contacts before installing.