630 A MCCB with 187 kA interrupting at 240 V
The SENTRON 3VA2463-5HN32-0AG0 is a 3-pole molded case circuit breaker rated for 630 A continuous current, designed for line protection in industrial distribution panels. Its interrupting capacity reaches 187 kA at 240 V, dropping to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V — figures that govern its fault-clearing capability at the point of common coupling. The 630 A rating is thermally calibrated: at 40 °C ambient it carries the full 630 A, derating to 520 A at 70 °C. This matters when the breaker sits in a crowded enclosure where internal temperature rise is a given — the derating curve lets you size the panel ventilation or accept the reduced capacity without nuisance tripping. The breaker ships with a 1 auxiliary switch plus 1 trip alarm switch (HP type) factory-fitted, and the basic switch variant is 3VA2463-5HN32-0AA0. No undervoltage release, no ground-fault monitoring, and no communication function are included — this is a straightforward line-protection device for feeders where remote signaling or GFCI is handled upstream.
Panel integration and physical fit
Dimensions are 248 mm high, 138 mm wide, 110 mm deep. The 138 mm width is the critical dimension for DIN-rail or mounting-plate spacing. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 162 W — factor that into enclosure thermal calculations, especially when multiple breakers are ganged in a single cabinet.