The SENTRON 3VA2110-7MS32-0BH0 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 flat thermal curve is unusual; most MCCBs start to derate above 40 °C. Here it means the same 100 A holds even in a hot panel or next to a motor starter. The I-trip is adjustable, so you can dial the magnetic pickup to match the motor's starting profile. Breaking capacity is the headline: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. That puts it in the high-interrupting category, suitable for large transformer-fed switchboards or high-fault panels.
Auxiliaries and undervoltage release
The undervoltage release (UVR) is built in — if control voltage drops, the breaker opens. That is standard for safety circuits where a loss of control power must disconnect the load.