What the ratings mean for your panel
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. That rating means it can safely clear a fault current up to 70 kA without the arc flashing over to adjacent equipment, which is the deciding factor for high-fault panels near large transformers or motor control centers. 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 3VA1 frame mounts on a DIN rail or panel plate in a standard distribution board or motor control center. 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.