What it is and what it does
The Siemens 3VA1132-6EF32-0AG0 is a SENTRON 3-pole molded case circuit breaker (MCCB) rated for 32 A continuous current (Iu) with a TM240 thermal-magnetic overcurrent release. It's a line-protection device — meaning it's set up for cable and busbar protection, not motor or generator duty. The 220 kA breaking capacity at 240 V tells you this thing can interrupt a serious fault without the arc re-striking; at 415 V it still holds 154 kA, and at 690 V it's 17 kA. That's a high-interrupting-capacity (HIC) frame, sized for main feeders or distribution panels where the available fault current is ugly. The thermal-magnetic curve is fixed — no electronic adjustment, no communication module, no ground-fault monitoring. What you see is what you get: a TM240 release that holds 32 A through 50 °C ambient (–), then starts derating linearly to 28.8 A at 70 °C. That flat 32 A band through 50 °C is useful if the panel sits in a warm machine room; you don't lose headroom until the ambient climbs past 50 °C.
Where it fits in the panel
The 3VA1132-6EF32-0AG0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep. That width is three pole pitches — standard for a 3-pole MCCB in this frame size. It mounts via screw-clamp to a backplate or DIN rail adapter. The IP40 front face protects against tools and wires >1 mm, but not against water ingress. It ships with one auxiliary switch and one trip alarm switch, high-performance (HP) contacts. That's enough to signal the breaker's status and a trip event back to a PLC or annunciator. No undervoltage release, no shunt trip — if you need remote tripping, you're adding an external release module.