The Siemens 3VA2216-5MN32-0BA0 is a SENTRON molded case circuit breaker (MCCB) in the motor protection version, rated for 160 A continuous current at 40 °C and carrying a 187 kA interrupting capacity at 240 V. That 187 kA figure at 240 V means it can safely clear a massive fault without welding contacts or blowing apart — the kind of fault you get on a big motor feeder downstream of a transformer. Out here in the grease, that's the difference between a quick swap and a panel rebuild.
Ratings and what they mean for fit
Three-pole design, 160 A frame. The interrupting capacity drops as voltage climbs: 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 17 kA at 690 V. That 17 kA at 690 V is the number to watch if you're feeding a 690 V drive — plenty of headroom for most industrial feeders, but check your available fault current. The ETU350M electronic trip unit gives you adjustable overload and short-circuit protection curves, plus phase failure detection. It also includes an undervoltage release (UVR), so if your control voltage drops, the breaker opens — no separate undervoltage relay needed. The supplied basic switch is 3VA2216-5MN32-0AA0 and the integrated auxiliary trip is 3VA9608-0BB11.
Dimensions and panel fit
The 3VA2216-5MN32-0BA0 measures 181 mm high, 105 mm wide, and 86 mm deep. That 105 mm width (about 4.1 inches) is the standard 3-pole MCCB footprint for this frame size — it'll drop into a SENTRON panelboard or a DIN-rail adapter without surprises. The depth of 86 mm leaves room for rear-connected busbars or cable lugs in a typical 600 mm deep enclosure.
Environment and approvals
Rated for operation from -25 °C to 70 °C ambient, with storage from -40 °C to 80 °C. That 70 °C top end means it can sit next to a hot motor starter or transformer without derating the frame — though the ETU350M trip curve may need a second look at elevated temps. Maximum power loss is 75 W. No auxiliary contacts or ground-fault monitoring built in; those are add-on modules. The breaker carries the SENTRON brand, which typically holds UL 489, CSA C22.2 No. 5, and IEC 60947-2 certifications — verify the specific listing for your jurisdiction at quote time.