The Siemens 3VA2116-6HL32-0AA0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 160 A continuous current, 3-pole, with an ETU320 electronic trip unit. At 240 V it interrupts 242 kA; at 415 V and 440 V it holds at 187 kA; at 500 V it still handles 121 kA. Only at 690 V does it drop to 3.7 kA — that tells you this is a 480 V class device, not a 690 V main.
That width is the critical dimension for a multi-pole lineup — three of these side by side take 315 mm of DIN-rail or panel-mount space.
Sourcing and lifecycle — active, no LTB pressure
Power loss at full rated current is 25.5 W — relevant for thermal calculations inside a sealed enclosure with other heat sources. Insulation voltage rated at 800 V, so it can sit on a 480 V or 600 V bus without derating the dielectric.
What the ETU320 trip unit does for you
The ETU320 is an electronic trip unit with adjustable overload (Ir) and short-time (Isd) pickups, plus fixed instantaneous (Ii). The trip indicator is absent on this order code, so a remote signal or visual flag won't come from the breaker itself; plan for a separate indicating light or a communication module if you need status.