The Siemens SENTRON 3VA2225-6HN32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, with a maximum breaking capacity of 242 kA at 240 V AC. This is a line-protection design, meaning it's intended for feeder or main breaker duty rather than motor protection — no ground-fault monitoring or communication function on this variant.
The interrupting rating drops as voltage climbs: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V.
Continuous current holds at 250 A from 40 °C up to 50 °C, then derates linearly to 213 A at 70 °C. Maximum power loss is 50.5 W — account for that heat in a sealed enclosure.
