160 A MCCB with ETU350 — what the ratings mean for your panel
The SENTRON 3VA2216-8HN32-0AA0 is a 3-pole molded case circuit breaker rated 160 A continuous, with an ETU350 electronic trip unit for line protection. That 160 A holds flat across the full operating range from 40 °C to 70 °C — no derating curve to chase in a warm enclosure. Breaking capacity hits 440 kA at 240 V, 330 kA at 415 V, and still carries 52.5 kA at 690 V, so it handles high-fault scenarios without cascading upstream. The ETU350 gives you adjustable long-time, short-time, and instantaneous pickup settings — useful for coordinating with downstream breakers in a selective distribution board.
Panel fit and deployment context
The 3VA2216-8HN32-0AA0 measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA frame size that drops into existing 3VA panel cutouts without re-drilling. IP40 on the front means it's protected against tools and wires entering from above, but the enclosure itself needs to handle the rest of the environment. Rated insulation voltage is 800 V, so it's comfortable on 690 V systems with margin. Power loss runs 19.7 W at full load — factor that into your enclosure thermal budget if you're packing multiple breakers in a row.
Environmental limits
Operating temperature spans -25 °C to 70 °C; storage range is -40 °C to 80 °C. The storage minimum is the real shipping limit — no special cold-chain handling needed for winter freight.