SENTRON 3VA2 MCCB, 630 A Frame — Line Protection with Shunt Trip
It carries a fixed thermal-magnetic trip unit with a minimum trip setting of 945 A and maximum 5 670 A — the adjustable long-time and short-time pickup bands cover motor and feeder protection curves without a separate relay. Breaking capacity is 330 kA at 240 V AC, 242 kA at 415/440 V, 187 kA at 500 V, and 9 kA at 690 V. The frame holds up to 162 W power loss at full load, so panel ventilation matters when grouping multiple breakers.
Dimensions, Mounting, and Ambient Derating
Footprint: 138 mm wide × 248 mm tall × 110 mm deep. Continuous current derates linearly from 630 A at 40 °C to 520 A at 70 °C. At 50 °C it's still good for 593 A; at 60 °C, 557 A.
