The Siemens SENTRON 3VA1110-5EF36-0JA0 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 and an integrated shunt trip (STL) for remote tripping. The 187 kA breaking capacity at 240 V is the headline number, but the 121 kA at 415 V and 75.6 kA at 440 V are what matter for most industrial 400 V panels: that SCCR gives you headroom to coordinate with downstream breakers without cascading faults upstream. At 690 V it still interrupts 17 kA, so it handles 690 V distribution in mining or marine applications.
The 100 A rating holds flat from 40 °C to 50 °C, then drops to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C.
The 76.2 mm width matches standard 3-pole MCCB cutouts. The shunt trip coil is ordered separately (3VA9688-0BL32) and installs into the auxiliary trip slot on the breaker.