The Siemens SENTRON 3VA1110-6EF36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 100 A at 40 °C, with a TM240 thermal-magnetic overcurrent release designed for line protection — meaning it sits on a feeder or main distribution circuit, not a motor branch. At 415 V the rating drops to 154 kA, still well above typical utility fault levels.
Current derating and thermal limits
Above that it derates: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C. The maximum power loss is 25 W, which matters for enclosure ventilation when several breakers are ganged.
Panel fit and environment
It's a straight line-protection breaker: bolt it in, land the conductors, set the thermal dial if adjustable (the TM240 is fixed), and close the cover.
