What this MCCB is and why it matters
The Siemens 3VA2110-6HN36-0KA0 is a SENTRON molded case circuit breaker (MCCB) built for line protection — the kind of main or feeder breaker that sits ahead of branch circuits in a distribution panel. It carries a continuous current rating of 100 A across the full ambient range from -25 °C to 70 °C, so you don't have to derate for a hot enclosure. The 242 kA interrupting rating at 240 V means it can clear a massive fault without the arc flashing over to adjacent gear — that's the kind of short-circuit capacity you spec for a service entrance or a high-fault industrial feed.
Breaking capacity across voltage levels
This MCCB's interrupting capacity drops as system voltage rises — 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. That steep fall at 690 V tells you this is a 480 V-class breaker, not a 600 V-class one. For a 480 V delta or 277/480 V wye service, the 187 kA rating gives plenty of headroom for most industrial SCCR requirements.
Integrated shunt trip for remote tripping
The factory-fitted shunt trip (STL) release lets you trigger a trip from a remote push button, a safety relay, or a PLC output — useful for emergency-stop circuits or automated load shedding. No undervoltage release on this variant, so it won't drop out on a brownout; the shunt trip is the only auxiliary release.
Mounting and panel fit
At 86 mm deep, 105 mm wide, and 181 mm tall, this 3-pole breaker fits standard SENTRON mounting footprints. Panel builders will find the 10 W maximum power loss manageable within typical enclosure thermal budgets. The line-protection design means it coordinates downstream with smaller branch breakers.