Siemens SENTRON 3VA2216-7MN32-0AG0 is a 3-pole molded case circuit breaker (MCCB) designed specifically for motor protection, with a solid 160 A rating that holds flat from 40 °C all the way up to 70 °C — no derating curve to chase in a warm panel. Breaking capacity hits 330 kA at 240 V and still delivers 242 kA at 415/440 V, so it handles high-fault utility feeds without cascading upstream.
What the ratings mean for your panel
The 160 A rating at 40–70 °C means this breaker carries full load current in a hot enclosure — common when it's mounted next to drives or transformers inside a steel cabinet. No need to oversize for ambient temperature. Phase failure detection is built in, so the breaker trips on a lost phase before the motor single-phases and cooks the winding. That's a standard feature on the motor-protection variant, not an add-on module. The auxiliary switch configuration — 1 auxiliary switch + 1 trip alarm switch HP — gives you one N.O./N.C. for status feedback and a separate alarm contact that closes only on a trip. Useful for PLC inputs: the alarm tells you the breaker tripped, not just that someone turned it off.
Where it fits
Mounts on a DIN rail or panel-mount in a standard distribution board. Dimensions: 105 mm wide, 181 mm tall, 86 mm deep. That's a 3-pole frame that fits the usual SENTRON 3VA2216 slot — check your enclosure's fill factor against the 105 mm width per pole. Rated for motor protection duty, so it's the right choice for a motor feeder in a MCC or a standalone pump/conveyor circuit. The trip indicator gives a quick visual on the front panel — green/red flag, no need to poke a meter into a live board.