The Siemens SENTRON 3VA2325-6HL32-0JL0 is a 3-pole molded case circuit breaker rated for 250 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. Breaking capacity hits 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream. Designed for line protection, it ships with a shunt trip (STL) auxiliary release and a 2+1+1 auxiliary/trip/alarm switch configuration. The basic switch variant underneath is 3VA2325-6HL32-0AA0.
Breaking capacity and thermal performance
The 250 A frame holds its full rating from 40 °C through 70 °C ambient — no thermal knock-down curve to track. That matters for panels packed into hot enclosures or near process heat. The 242 kA at 240 V is the headline interrupt rating; at 690 V it drops to 7.5 kA, which still covers most 690 V motor branch circuits. The 3-pole construction with shunt trip (STL) means it can be remotely tripped via a control signal, useful for emergency-stop integration or supervisory shutdown.
Panel integration
Dimensions are 248 mm high, 138 mm wide, 110 mm deep — fits standard MCCB panel cutouts and bus-bar spacing for a 250 A frame. No communication module on board; this is a standalone line-protection breaker with voltage-trigger capability and a trip indicator. Storage range is -40 °C to 80 °C; operating range -25 °C to 70 °C. Maximum power loss is 37.5 W — factor into enclosure thermal calculations.