Siemens SENTRON 3VA2010-5HN32-0JA0 — 100 A MCCB with Shunt Trip
The Siemens SENTRON 3VA2010-5HN32-0JA0 is a 3-pole molded case circuit breaker rated for 100 A continuous current, designed for line protection in distribution panels. It carries a shunt trip (STL) auxiliary release for remote tripping, making it suitable for emergency-off or supervisory control circuits. Breaking capacity runs from 187 kA at 240 V down to 3 kA at 690 V — the 240 V figure covers most North American panelboard fault levels, while the 121 kA at 415 V handles European industrial mains. The 100 A rating holds flat across the full operating temperature range from -25 °C to 70 °C, so no derating curve to chase in a warm enclosure.
Footprint and Panel Fit
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA frame that bolts into a panel or mounts on a mounting plate. The 86 mm depth keeps it clear of shallow enclosure back-panels. Three-pole construction with no undervoltage release and no ground-fault monitoring; the shunt trip is the only auxiliary. Power loss is 13.5 W maximum, manageable for thermal budgeting in a sealed cabinet.