What this MCCB does for a motor circuit
The Siemens 3VA2216-8KP42-0AA0 is a 4-pole SENTRON molded case circuit breaker rated 160 A continuous, with an adjustable overcurrent range from 240 A up to 1 920 A. That adjustable band lets you dial the trip to the actual load without swapping the frame — handy when you're protecting a motor feeder that might get re-rated down the line. Interrupting capacity is the headline here: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and still 52.5 kA at 690 V. Insulation voltage is 800 V.
Four-pole footprint — line and load lugs on both ends. The breaker has a communication function for remote monitoring or trip-data retrieval, though no specific protocol is listed in this spec set. No undervoltage release and no trip indicator; if you need a local trip flag, plan on an auxiliary contact add-on.