This 3VA1132-4EF32-0BC0 is a Siemens SENTRON molded case circuit breaker rated 32 A continuous at 40 °C ambient, with a 121 kA interrupting capacity at 240 V — that SCCR handles high-fault utility feeds without cascading upstream breakers. At 415 V the interrupting rating is 75.6 kA, at 440 V it's 52.5 kA, and at 500 V or 690 V it holds 11.9 kA. It's a 3-pole, line-protection design, meaning it's sized for feeder or main breaker duty rather than motor branch-circuit protection — no thermal-magnetic curve for motor starting inrush.
Dimensions: 130 mm height, 76.2 mm width (3 in), 70 mm depth. The 3-pole footprint fits standard SENTRON 3VA1 panel cutouts.
The supplied basic switch is 3VA11324EF320AA0.