The Siemens SENTRON 3VM1132-3EE46-0AA2 is a 4-pole molded case circuit breaker (MCCB) rated for 32 A continuous current at 40 °C, with a 160 A frame size that gives you headroom if the load grows. The switching capacity class N means it's built for standard industrial distribution, not high-fault petrochemical or utility tie points.
This breaker delivers 76 kA at 240 V AC, 53 kA at 415 V AC, 32 kA at 440 V AC, and 11.9 kA at 500 V AC. The 76 kA at 240 V gives comfortable margin for most North American panelboards.
Thermal derating — no surprise at the back of a warm panel
Rated 32 A from 40 °C through 50 °C, then it starts to taper: 31 A at 55 °C and 60 °C, 30 A at 65 °C and 70 °C. If this breaker sits next to a transformer or drive in a sealed enclosure, you lose about 2 A at elevated temperatures — plan your load accordingly.