What this breaker does on the line
The Siemens 3VM1132-3EE36-0AA2 is a 3-pole IEC frame 160 molded-case circuit breaker rated 32 A continuous, with a 25 kA interrupting capacity at 415 V (class N). The TM220 thermal-magnetic trip unit gives you an adjustable overload band from 22 A to 32 A (Ir) and a fixed short-circuit pickup at 10× In (320 A). For a conveyor or pump panel, you set Ir to match the motor FLA or the downstream tap rating, and the magnetic instant clears a bolted fault before the cable insulation takes damage.
The terminal connection accepts copper or aluminum conductors sized for the 32 A continuous load — no special lug kit needed for this rating. The ATFM designation covers the accessory suite: auxiliary contacts, shunt trip, and undervoltage release modules snap onto the breaker without increasing the panel depth. If you are wiring a safety circuit, the UVR can be tied into the E-stop chain to drop the breaker on a loss of control voltage.