What the ratings mean for fit
The Siemens SENTRON 3VA2110-7MS36-0AD0 is a 3-pole molded case circuit breaker (MCCB) in the starter protection version, rated for a continuous current of 100 A at 40 °C through 50 °C. That 100 A holds flat across the typical panel ambient range; above 50 °C it derates to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C — so if your enclosure runs hot, the breaker still carries nearly full rating without a frame size jump. The interrupting ratings are the headline: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 52.5 kA at 690 V. Those numbers mean this breaker can sit on a high-fault panelboard without needing a current-limiting upstream device — the 330 kA at 240 V covers virtually any North American 240 V service, and the 242 kA at 415 V handles European industrial distribution. The 52.5 kA at 690 V is still well above typical 690 V motor-circuit fault levels. The ETU310M electronic trip unit provides adjustable overload and short-circuit protection. The 3 auxiliary switches (HQ version) give status feedback for PLC or remote monitoring. No undervoltage release, no shunt trip, no ground-fault module, no communication function — this is a straightforward power breaker for motor starter protection, not a full-featured distribution breaker.
Panel integration
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — a compact 3-pole MCCB footprint that fits standard Siemens SENTRON mounting plates and busbar systems. The 75 W maximum power loss at full load means the enclosure needs some ventilation; do not bury it in a sealed gland plate without thermal derating.