The Siemens 3VA1110-6EF32-0JC0 is a 3-pole IEC frame 160 circuit breaker with a 70 kA interrupting capacity at 415 V — breaking capacity class H. The TM240 thermal-magnetic trip unit provides overload protection adjustable from 70 A to 100 A (Ir) and short-circuit protection (Ii) set at 5 to 10 times the rated current In=100 A, so you size the Ir to match the continuous load and the Ii to ride through motor inrush without nuisance tripping.
Deployment context
The integrated shunt trip (STL) operates on 110–127 V DC or AC 50/60 Hz, allowing remote tripping from an emergency-stop circuit or a PLC digital output. Two auxiliary switches (HQ) provide status feedback — typically wired to a PLC input for breaker position monitoring.