The Siemens SENTRON 3VA1132-4EF36-0AD0 is a 3-pole molded case circuit breaker (MCCB) with a TM240 thermal-magnetic release, rated for 32 A continuous current across ambient temperatures up to 50 °C before any derating applies. Breaking capacity runs from 121 kA at 240 V down to 11.9 kA at 690 V — the 75.6 kA at 415 V is the figure most panel builders will use for IEC 60947-2 coordination studies on 400 V distribution.
What the ratings mean for fit
The TM240 release is a fixed thermal-magnetic unit — no interchangeable trip blocks, no electronic adjustment. The '240' designates the frame size, not the amp rating; actual continuous current is 32 A, held flat to 50 °C, then derating 1 A per 5 °C step through 70 °C. Rated insulation voltage is 800 V, so this MCCB is suitable for 690 V line-to-line systems where the insulation coordination matters for the panel design, even though the breaking capacity at that voltage is reduced to 11.9 kA. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without requiring a sub-panel adaptor. No undervoltage release, no shunt trip, no ground-fault monitoring, no communication module, and no trip indicator — this is a plain line-protection breaker for simple distribution where remote signaling or GFCI is handled externally.