The Siemens SENTRON 3VA2225-7HN32-0AF0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C ambient, with a maximum interrupting capacity of 330 kA at 240 VAC.
This breaker delivers 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 4.5 kA at 690 V — covering most low-voltage distribution scenarios where high fault currents are expected. The 250 A frame is thermally rated through 70 °C ambient; at 55 °C it still holds 241 A, and at 70 °C it derates to 213 A, so the 250 A rating is solid for normal panel environments up to 50 °C.
Mounts in standard MCCB panel cutouts; the 105 mm width and 86 mm depth leave room for adjacent breakers and busbar connections without re-spacing. The integrated auxiliary and trip alarm switches (HQ) provide dry contacts for PLC or SCADA monitoring, eliminating the need for a separate add-on module in most control panels.