What this MCCB does on the line
The Siemens 3VA1132-5EF36-0JC0 is a 3-pole SENTRON molded case circuit breaker rated for 32 A continuous current at 40 °C, with a TM240 thermal-magnetic release that handles both overload and short-circuit protection in one package. The interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V, and still delivers 75.6 kA at 440 V — numbers that put it solidly in high-fault-duty panels where upstream transformer or bus capacity is substantial. The shunt trip (STL) release and two auxiliary switches HQ are built in, so you get remote tripping capability and status feedback without adding external modules.
Derating reality — where the 32 A holds and where it drops
At 55 °C it drops to 30.72 A, at 60 °C to 30.08 A, at 65 °C to 29.44 A, and at 70 °C to 28.8 A.
Panel fit — dimensions and mounting
Three-pole footprint, front IP40. If the BOM calls for phase-failure detection or a separate UVR coil, this is not that version.