What this MCCB carries
The Siemens SENTRON 3VA2216-6JQ32-0AA0 is a 3-pole molded case circuit breaker rated for 160 A continuous current — that's the full-scale value, not a thermal derate starting point. The breaker holds 160 A flat from 40 °C all the way up to 70 °C, so no ambient derating curve to chase in a warm panel. Breaking capacity climbs to 242 kA at 240 V, drops to 187 kA at 415 V and 440 V, then 121 kA at 500 V; at 690 V it's still good for 4.5 kA. That range covers most industrial service-entrance and feeder applications. It's a line-protection design — no undervoltage release, no voltage trip, no trip indicator on the front. Communication function is built in, which means it can talk to a higher-level monitoring system without an add-on module. The insulation voltage is rated 800 V, so it's comfortable on 480 V and 600 V class systems with margin.
Panel fit and environment
Footprint is 105 mm wide, 181 mm tall, 86 mm deep — a standard MCCB envelope for a 160 A frame. Mounts on a DIN rail or direct panel; the 3-pole width matches common busbar and lug layouts. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. Power loss at full load is 19.7 W — factor that into enclosure thermal calculations if you're packing several breakers in a sealed box.