The Siemens SENTRON 3VA2225-7HL32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current, with a massive 330 kA interrupting capacity at 240 V — that figure drops to 242 kA at 415/440 V, 187 kA at 500 V, and 6.3 kA at 690 V, so this breaker is sized for high-fault utility or transformer-fed main feeders where the available fault current is in the hundreds of kiloamps. It carries the ETU320 electronic trip unit and an integrated undervoltage release (UVR) as the auxiliary trip device (order code 3VA9608-0BB24), and the basic switch itself is 3VA2225-7HL32-0AA0 — the -0CA0 suffix adds the UVR. No auxiliary contacts, no communication module, no ground-fault monitoring on this variant; it is a straight line-protection breaker with undervoltage protection built in.
Thermal derating and panel fit
The 250 A rating holds flat from 40 °C to 50 °C ambient; above that it derates linearly to 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 above 50 °C, the breaker still carries 213 A at 70 °C — no need to oversize the frame for a hot enclosure, but the power loss at full load is 50.5 W, so account for that heat in the enclosure thermal budget. Footprint is 105 mm wide × 181 mm tall × 86 mm deep — a standard 3-pole MCCB envelope that fits the SENTRON mounting base and busbar system. The -25 °C to +70 °C operating range and -40 °C to +80 °C storage range cover most industrial and outdoor enclosures without special climate control.