The Siemens SENTRON 3VA2110-7MN36-0HH0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed as the panel warms up near a motor starter stack. This is the motor-protection variant, with phase failure detection built in, so it catches a lost phase on a conveyor or pump drive before the winding overheats.
Short-circuit breaking capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, and 187 kA at 500 V — numbers that put this MCCB well into the high-fault category for industrial distribution. The trip time band is 4 s minimum to 17 s maximum, giving the selectivity engineer room to coordinate with downstream breakers on a motor control center feeder.
Auxiliaries and release configuration
The basic switch assembly is order code 3VA21107MN360AA0, which means the aux block is integral, not a field-add-on. A voltage trigger is present; undervoltage release is not, so the shunt trip is the only remote-trip path.
Integration dimensions
Max power loss is 10 W, so ventilation in a sealed enclosure is advisable if multiple breakers are ganged.