What it is and what the ratings mean
The Siemens SENTRON 3VA2110-7MP32-0AA0 is a 3-pole molded case circuit breaker designed for motor protection, carrying a continuous current rating of 100 A across the entire ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve means you can install it in a warm cabinet without recalculating the load schedule. Its interrupting capacity hits 330 kA at 240 V, 242 kA at 415 V, and still holds 187 kA at 500 V; at 690 V it drops to 3.7 kA, so for high-voltage feeders you need to check the fault level upstream. The adjustable trip classes (10A, 10/10E, 20/20E, 30/30E) let you match the overload curve to the motor start profile — a 10E class clears faster for pumps, a 30E gives longer pickup for high-inertia loads like fans or crushers.
Integration and panel fit
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. It includes phase failure detection and a communication function, so it can report trip events to a PLC or SCADA system over the bus. Rated insulation voltage is 800 V, and the maximum power loss is 10 W, which is modest enough to avoid forced ventilation in a typical 600 mm wide panel.