What this MCCB delivers
The Siemens SENTRON 3VA2110-6HN36-0KC0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full operating temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. That 100 A holds steady at every 5 °C step in between, so it's a straight pick for a 100 A feeder or main breaker in a panel that runs warm. Breaking capacity is the headline here: 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 242 kA at 240 V puts it in the high-interrupting class — it'll clear a bolted fault on a large transformer secondary or a high-capacity bus without upstream fuses needing to coordinate. The 3.7 kA at 690 V is the weak leg; if you're on a 690 V system, this breaker is for downstream distribution, not the main.
Panel fit and integration
Footprint is 105 mm wide, 181 mm tall, 86 mm deep — standard 3-pole MCCB envelope for a 100 A frame. Mounts on a DIN rail or direct-panel via the base. The 86 mm depth means it clears most shallow gland-plate enclosures; check your backpanel clearance if you're retrofitting into a tight 200 mm deep box. Comes with 2 auxiliary switches (HQ type) and a shunt trip (STL) release built in — that's the auxiliary release for remote tripping. No undervoltage release, no ground-fault monitoring module on this variant. If you need UVR or GF, you're looking at a different suffix in the 3VA2 family.
What the ratings mean for coordination
The 100 A continuous rating is the frame size, not a suggestion — the breaker is thermally rated to carry that current indefinitely at up to 70 °C ambient. The 242 kA interrupting rating at 240 V means it can be installed on a 240 V bus with available fault current up to that level without needing current-limiting fuses upstream. At 415 V, 187 kA still covers most industrial distribution boards. The 3.7 kA at 690 V is the constraint: if your system voltage is 690 V, this breaker is limited to downstream sub-feeds where fault current is under that threshold.