What this 160 A MCCB carries
The Siemens SENTRON 3VA2216-8HN42-0AA0 is a 4-pole molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That flat thermal curve is unusual; most MCCBs start pulling current back above 40 °C. Here it holds 160 A all the way to 70 °C ambient, which matters if this lands in a hot panel or next to a drive. The ETU350 electronic trip unit gives it adjustable long-time, short-time, instantaneous, and ground-fault protection curves — not a fixed thermal-magnetic. That means you can dial in coordination with downstream breakers without swapping the whole frame. Line protection design means it's optimized for feeder and main breaker duty, not motor branch circuit.
At 415 V it interrupts 330 kA symmetrical. At 240 V that climbs to 440 kA.
Footprint is 140 mm wide, 181 mm tall, 86 mm deep — a standard 4-pole MCCB envelope for SENTRON 3VA2 frames. Mounts via four screws to a backplate or onto a DIN rail adapter (sold separately). That's modest for a 160 A 4-pole — heat dissipation inside the panel stays manageable, but you still want ventilation or spacing if multiple breakers are ganged in a row.