The Siemens SENTRON 3VA2110-7MN32-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed as the panel warms up.
Breaking capacity and fault clearing
This MCCB delivers 330 kA interrupting capacity at 240 V, dropping to 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V.
Motor protection specifics
Designed as a motor protection breaker, it includes phase failure detection — if one phase drops, the breaker trips before the motor runs single-phase and cooks the winding. The undervoltage release (UVR) drops the breaker on a sag or loss of control voltage, which is useful for coordinated stop sequences on conveyors or pumps.
Thermal and environmental range
Maximum power dissipation is 12.5 W — low enough that side-by-side mounting in a sealed enclosure won't push internal temps past the breaker's 70 °C ceiling, but worth checking if you're packing six of these in a small stainless box.