The Siemens SENTRON 3VA1110-4EF32-0AB0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at 40 °C, with a TM240 thermal-magnetic overcurrent release.
Breaking capacity across voltages — selectivity headroom
At 415 V the breaker is rated 75.6 kA; at 440 V it drops to 52.5 kA; at 690 V it still holds 11.9 kA. These figures matter for selectivity coordination downstream — you can size this breaker as the main in a distribution panel feeding sub-feeders, knowing it will hold through a fault on a branch without nuisance trip.
Above that it derates: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, 90 A at 70 °C.
Panel fit — dimensions and auxiliary contacts
The breaker measures 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or screw-mounted panel layouts. The 2 HP auxiliary switches are pre-installed; no separate aux kit to order.