MCCB for high-fault panel builds
The Siemens SENTRON 3VA2010-6HN36-0KA0 is a 3-pole molded case circuit breaker rated for 100 A continuous current and built for line-protection duty. It carries a 242 kA breaking capacity at 240 V AC and still handles 187 kA at 415 V — the kind of fault-clearing headroom you need on large transformer secondaries or busway feeds where a standard MCB would vaporize. Rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V class systems even though the interrupting ratings are specified at the lower test voltages. Maximum power loss runs 13.5 W — negligible for panel thermal budgeting but worth knowing if you're packing breakers tight in a non-ventilated enclosure.
Shunt trip and temperature profile
This variant comes factory-fitted with a shunt trip (STL) release, meaning you can remotely trip the breaker via a control voltage — useful for emergency-stop circuits or interlocking with upstream switchgear. The base switch is order code 3VA20106HN360AA0, so any accessory or spare-part lookup should start there. Operating temperature range is -25 °C to 70 °C, and the continuous current rating holds flat at 100 A all the way from 40 °C up to 70 °C — no derating curve to chase in warm cabinets. Storage range extends from -40 °C to 80 °C.
Panel fit and dimensions
The 3VA2010-6HN36-0KA0 measures 105 mm wide by 181 mm tall by 86 mm deep — a standard SENTRON 3VA frame size that drops into existing panel layouts without re-drilling gland plates. Three-pole configuration covers three-phase line feeds; the width matches the typical 105 mm pitch for busbar connection.