63 A motor protection MCCB with 330 kA interrupting capacity
The Siemens 3VA2163-7MN32-0HL0 is a SENTRON molded case circuit breaker rated for 63 A continuous at ambient temperatures up to 70 °C — no derating required across the full -25 to 70 °C operating range, per the spec table. Its interrupting capacity reaches 330 kA at 240 V, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. For a 480 V panel, that 187 kA SCCR gives substantial headroom above typical available fault currents in most industrial distribution boards — selectivity coordination studies will find this breaker easy to place downstream of a current-limiting fuse or larger MCCB. Designed specifically for motor protection, it includes phase failure detection and a trip indicator. The trip time band is 4 s minimum to 17 s maximum — a thermal-magnetic or electronic curve suited for starting inrush without nuisance trips on standard induction motors.
The basic switch assembly is order code 3VA2163-7MN32-0AA0, meaning the -0HL0 suffix adds the shunt trip and the full auxiliary contact set. No undervoltage release is fitted; if UVR protection is needed, that would be a different suffix variant.
Panel fit and thermal management
Operating minimum is -25 °C, covering cold-start conditions in outdoor panels in most climates.