The Siemens 3VA2116-5HL32-0DE0 is a 3-pole IEC frame 160 molded-case circuit breaker with breaking capacity class M — Icu=55kA at 415V AC — fitted with an ETU320 LI trip unit. Rated In=160A, the overload protection Ir is adjustable from 63A to 160A, and the instantaneous short-circuit pickup Ii ranges 1.5 to 10 times In. The unit ships with an undervoltage release (208-230V AC 50/60Hz) and four auxiliary switch changeover contacts pre-installed.
What the ratings mean for fit
The 55kA Icu at 415V tells you this breaker can safely interrupt a fault current up to that level without failing — critical for high-fault installations like large transformer secondaries or industrial switchboards. The ETU320 LI trip unit provides adjustable long-time (overload) and instantaneous (short-circuit) protection only; no short-time delay, so it's a straight line-protection device for feeders or large branch circuits where selective coordination with downstream breakers isn't required. The 160A frame with Ir down to 63A means you can size the overload protection to the cable or load without swapping the breaker body.
Mounts in a standard panel on a DIN rail or direct-mount plate. The 3VA2 frame uses the same cutout and busbar pattern as other 160A-frame Siemens breakers, so retrofitting into an existing 3VA lineup is straightforward — no re-drilling of the backplate or re-termination of busbars needed. The undervoltage release and auxiliary switches are factory-fitted; verify control voltage polarity at the release terminals before energizing.