The Siemens 3VA2216-5MN32-0JH0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection, with a continuous current rating of 160 A that holds across the full ambient temperature range from 40 °C to 70 °C — no derating required in a warm panel (–). Three-pole construction with phase failure detection built in. The interrupting ratings are what you need for a high-fault installation: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V (–). That 121 kA at 415 V covers most industrial secondary-side fault levels without an upstream current-limiting fuse. This MCCB includes a shunt trip (STL) auxiliary release and a configurable auxiliary switch block: 2 auxiliary switches plus 1 trip alarm switch. A trip indicator and undervoltage release option (not fitted here) round out the signal package for remote status and lockout schemes.
Breaking capacity and motor protection duty
Rated 160 A continuous, and the design is motor-protection — meaning the thermal-magnetic or electronic trip curve is shaped for motor inrush and overload profiles, not straight feeder protection. The 121 kA at 415 V is the Icu (ultimate breaking capacity); for motor-starting duty where the fault current may be lower but repetitive, this MCCB holds its rating without degradation. Power loss at rated load is 19.7 W maximum — relevant for enclosure thermal calculations when grouping multiple breakers. The unit measures 105 mm wide × 181 mm high × 86 mm deep (–), a standard SENTRON 3VA form factor that fits existing panel layouts and busbar systems.
Panel integration and compliance
Mounts on a DIN rail or direct panel-mount via the SENTRON base. The 86 mm depth fits standard 200 mm deep enclosures with clearance for rear-connected busbars. Operating temperature range is -25 °C to 70 °C (–); storage from -40 °C to 80 °C (–). The part carries a trip indicator for visual fault identification without opening the panel.