The Siemens SENTRON 3VA2010-5HN32-0KL0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C up to 70 °C — no derating needed in a warm panel. Its interrupting capacity hits 187 kA at 240 V, drops to 121 kA at 415/440 V, 75.6 kA at 500 V, and 3 kA at 690 V, so it handles high-fault industrial feeds without cascading upstream. Designed for line protection, it ships with a shunt trip (STL) release and a complement of two auxiliary switches plus a trip alarm and an electrical alarm switch.
Interrupting capacity and selectivity
At 240 V the 187 kA rating places this MCCB well above typical distribution panelboard SCCR requirements — it interrupts faults up to that level without needing an upstream current-limiting fuse. At 415 V the 121 kA still covers most industrial main-feeder scenarios. The 3 kA at 690 V is low relative to the lower-voltage numbers; if your circuit operates at 690 V with a high available fault current, this breaker may not coordinate downstream. For 690 V applications with fault currents above 3 kA, the 5SQ2370-2YA05 peer carries a different interrupting curve worth checking.
Panel integration and mounting
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. The supplied basic switch order code is 3VA20105HN320AA0; the auxiliary switch block includes two auxiliary switches, one trip alarm switch, and one electrical alarm switch, all factory-installed. Power loss at rated current is 13.5 W, a figure to factor into enclosure thermal calculations.