SENTRON 3VA2225-7KP32-0AF0 — 250 A MCCB with 330 kA interrupting capacity
The Siemens SENTRON 3VA2225-7KP32-0AF0 is a 3-pole molded case circuit breaker rated for 250 A continuous current at 40 °C, with a maximum interrupting capacity of 330 kA at 240 V AC. At 415 V and 440 V the interrupting rating holds at 242 kA, dropping to 187 kA at 500 V, and 4.5 kA at 690 V.
Above 50 °C the continuous current steps down: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C (the maximum operating temperature). Maximum power loss is 48 W at rated load, which factors into enclosure ventilation sizing.
The basic switch variant is order code 3VA2225-7KP32-0AA0; this AF0 suffix adds the communication module and auxiliary/trip alarm switch set.