Key ratings and what they mean for fit
The 3VA2116-8HL32-0KC0 is a Siemens 3VA2 IEC frame 160 circuit breaker rated for a breaking capacity Icu of 150 kA at 415 V AC — that is the class L rating, meaning it can safely interrupt fault currents up to 150,000 A at that voltage without self-destructing. For a buyer specifying line protection, this figure governs whether the breaker clears a bolted fault before the upstream transformer or feeder breaker trips; if your available fault current at the panel is under 150 kA at 415 V, this unit fits. The ETU320 electronic trip unit provides LI (long-time and instantaneous) protection: overload protection Ir adjustable from 63 A to 160 A, and short-circuit protection Ii adjustable from 1.5 to 10 times In. That adjustability lets you coordinate with downstream devices without swapping trip units.
Built-in accessories and panel integration
This variant ships with a shunt trip wired left-side, operating on 208–277 V AC 50/60 Hz or 220–250 V DC, plus two auxiliary switches (changeover contacts). The shunt trip allows remote tripping from a safety circuit or E-stop string — common in machine-tool and conveyor applications where the breaker must open on a remote signal. The auxiliary switches report breaker status back to a PLC or indication lamp. The 3VA2 frame mounts on a standard DIN rail or can be screw-fixed to a backplate; plan for the frame-160 footprint when laying out the enclosure.