What the ratings mean for fit
The 3VA1132-5EF32-0AA0-ZD00 is a Siemens 3VA1 IEC frame 160 molded-case circuit breaker, 3-pole, with a breaking capacity class M rating of Icu=55 kA at 415 V. That 55 kA interrupting capacity at 415 V means it can safely clear a fault up to that level without upstream cascading — essential for high-fault panelboards or mains protection where the available short-circuit current is substantial. The TM240 thermal-magnetic trip unit gives an In=32 A with overload protection adjustable Ir=22…32 A and short-circuit protection Ii=5…10 x In, so you set the continuous current to match the load and the magnetic pickup to coordinate with downstream feeders.
Deployment context
Mounts in a standard IEC frame 160 footprint — panel builders fit this on a DIN rail or direct-mount plate inside a distribution board. The nut keeper kit for DC Power OEM in China signals this variant was configured for a specific OEM build; the keeper retains the terminal nuts during vibration, which matters if the breaker ships loose or sees transport shock before panel installation.