What this MCCB delivers — and where the ratings matter
The SENTRON 3VA1132-6EF32-0BC0 is a 3-pole molded case circuit breaker (MCCB) rated 32 A continuous at 40 °C, with a TM240 thermal-magnetic release for line protection. Its interrupting capacity hits 220 kA at 240 V AC — that's the figure that governs fault-clearing at the service entrance or on a high-capacity bus. At 415 V it still holds 154 kA, and at 690 V it's rated 17 kA, so it handles both low-voltage high-fault and higher-voltage distribution without cascading upstream. The 32 A rating holds flat from 40 °C up to 50 °C; it derates to 31 A at 55 °C and 30 A at 70 °C. That means in a warm panel — say a packed enclosure near a drive — you don't lose headroom until you're past 50 °C. The rated insulation voltage is 800 V, so it's comfortable on 480/277 V or 600 V systems with margin. It includes an undervoltage release (UVR) and comes with 2 HQ auxiliary switches built in — no separate add-on for status feedback. There's no ground-fault monitoring and no communication function, so this is a straight line-protection breaker for a panel where the UVR and aux contacts are the only accessories needed.
Panel fit — dimensions and integration
The 3VA1132-6EF32-0BC0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. That 76.2 mm (3-inch) width is the standard 3-pole MCCB footprint for this class — it drops into a panel that was laid out for a 3VA frame without re-drilling the gland plate. Depth of 70 mm leaves room for wiring gutters in a 200 mm deep enclosure. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. That covers unheated warehouses and outdoor cabinets in most climates.