Line-up and key ratings
The Siemens SENTRON 3VA1132-6EF36-0AG0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection at 32 A continuous current (Iu), with a TM240 thermal-magnetic trip unit. Its breaking capacity hits 220 kA at 240 V AC, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V — covering most industrial distribution panels where high fault current is a concern. The thermal derating curve is published: full 32 A up to 50 °C ambient, then steps down to 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. That matters when the breaker sits in a crowded enclosure near transformers or drives — you don't lose headroom until past 50 °C. Rated insulation voltage (Ui) is 800 V, and the front face carries IP40 protection — fine for a clean panel interior, but not for washdown zones. Operating temperature range is -25 °C to 70 °C; storage stretches from -40 °C to 80 °C.
Built-in aux and alarm contacts
This variant ships with one auxiliary switch plus one trip alarm switch (HP type) integrated — no separate add-on block needed. That saves a DIN slot and simplifies wiring for remote status monitoring. No undervoltage release, no phase-failure detection, no communication module on this order code; it's a straight line-protection breaker with basic signaling.
Panel fit and dimensions
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep. That 76.2 mm width (3 inches) matches the standard 3-pole MCCB footprint on a DIN rail or panel-mount base. No surprises for a panel already laid out for a SENTRON 3VA frame.
