What this MCCB is and what the ratings mean for fit
The Siemens SENTRON 3VA2010-6HN36-0JH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That 100 A holds flat through the whole temperature band, which simplifies panel sizing if your enclosure runs warm. The interrupting ratings are what set this part apart: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. For a 100 A frame, those are high-interrupting-capacity numbers — it clears a serious fault without upstream coordination headaches in most distribution panels.
Auxiliaries and releases built in
This breaker ships with a shunt trip release (STL) and two auxiliary switches plus one trip alarm switch (HQ configuration). That means you get remote tripping capability and status feedback without buying add-on modules — it's wired and ready for the control circuit. There's no undervoltage release fitted, and no ground-fault monitoring on this variant. The basic switch inside is order code 3VA20106HN360AA0, which is the core switching mechanism.
Physical fit and panel integration
Dimensions are 105 mm wide, 181 mm tall, and 86 mm deep. That's a standard 3-pole MCCB footprint for the SENTRON 3VA frame — it mounts on a DIN rail or directly to a backplate via the integral mounting clips. The 86 mm depth means it clears most 200 mm deep enclosures with room for wiring gutters. Power loss is 13.5 W maximum at rated load, so thermal rise inside a sealed panel is manageable without forced ventilation in most layouts.
Environmental limits and design intent
Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. The product designation is line protection — it's built for feeder and main breaker duty in distribution boards, not for motor circuit protection (that's a different trip curve). No communication function is fitted, so this is a straight electromechanical breaker with no integrated metering or networking.