The Siemens SENTRON 3VA2110-7MN32-0AB0 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 up to that thermal ceiling. The 10 W maximum power loss means it runs cool enough to group with other breakers without forced ventilation in most enclosures.
The interrupting ratings step down with voltage: 330 kA at 240 V, 242 kA at 415/440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The 3-pole configuration with phase failure detection catches a lost phase on a motor circuit, which prevents single-phasing damage to the motor windings. The two auxiliary switches HP (high-performance) provide electrical status of the breaker contacts — one normally open, one normally closed — wired back to a PLC digital input or a status lamp on the panel door.
