The Siemens 3VA1463-5GF42-0DH0 is a SENTRON molded case circuit breaker rated for 630 A continuous at 40 °C, with a 4-pole configuration and a TM240 thermal-magnetic trip unit. The interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V, which puts it in the high-fault tier for industrial main feeders or large sub-distribution boards. It includes an undervoltage release (UVR) and a complement of two auxiliary switches plus one trip alarm switch — enough for remote status and safety interlocks without adding external contact blocks. Rated insulation voltage is 800 V, so it handles 690 V line-to-line panels comfortably. The 630 A rating holds steady up to 50 °C; at 55 °C it derates to 618 A, and at 70 °C it's still good for 583 A — useful if the breaker sits in a warm enclosure near other heat sources. Power dissipation at full load runs 195.4 W, which factors into enclosure ventilation planning.
Integration & Mounting
The breaker measures 248 mm high, 184 mm wide, and 110 mm deep — a standard 4-pole MCCB footprint for 630 A frames. It mounts on a DIN rail or directly to a backplate via the integrated lugs. The undervoltage release (UVR) is factory-installed; verify coil voltage matches your control circuit before wiring. The auxiliary switch block (2 aux + 1 trip alarm) is pre-configured and wired to the terminal strip, so no separate assembly is needed.