SENTRON 3VA1132-3EF36-0AG0 — 32 A MCCB for Line Protection
The Siemens 3VA1132-3EF36-0AG0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. Rated 32 A continuous at 40 °C ambient, it carries a TM240 thermal-magnetic overcurrent release — the thermal element handles overloads, the magnetic element clears short-circuits. Breaking capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 11.9 kA at 690 V, so it handles high-fault-current service entrances or sub-distribution boards where SCCR headroom matters.
What the Ratings Mean for Panel Fit
The 32 A rating holds across 40 °C to 50 °C without derating; at 65 °C it still carries 30 A (–). That thermal stability is useful in crowded enclosures where internal ambient runs high. Rated insulation voltage is 800 V, so the breaker is rated for 690 V line-to-line systems common in industrial motor control centers. The 3-pole design suits three-phase feeders. An integrated auxiliary switch plus trip alarm switch provides remote status — useful for PLC-based monitoring without adding external aux contacts.
Mounting and Integration Notes
The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep (–). It mounts on a DIN rail or can be screw-fixed to a backplate. The TM240 release is factory-set and non-interchangeable in this variant — no field-swap of the trip unit. Power loss at full load is 10.6 W maximum, which factors into enclosure thermal calculations. Operating temperature range is -25 °C to 70 °C (–); storage range is -40 °C to 80 °C (–).