What this MCCB is and what it carries
The Siemens 3VA1032-2ED36-0BA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It's a 3-pole unit rated 32 A at 40 °C, fitted with a TM210 thermal-magnetic trip unit — that's a fixed thermal and fixed magnetic release, no adjustment dials, so what you see on the nameplate is what you get for overload and short-circuit protection. Breaking capacity runs from 52.5 kA at 240 V AC down to 7.5 kA at 690 V AC, which covers most commercial and light industrial fault levels. The insulation voltage is rated 800 V, so the breaker itself is built for 690 V systems with margin. This variant ships with an undervoltage release (UVR) built in — the auxiliary release type is listed as undervoltage release. That means if the control voltage drops below its dropout threshold, the breaker trips instantly. Common on safety circuits or upstream of a VFD where you want a guaranteed disconnect on power loss.
Panel fit and integration
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep. It mounts on a DIN rail or backplate. Power loss is 13.1 W maximum at rated load. In a sealed enclosure with multiple breakers side by side, that heat adds up — account for derating if the ambient inside the panel climbs above 40 °C. The spec table shows the breaker holds 32 A up to 50 °C, then tapers to 30 A at 70 °C, so you've got a 2 A derating window across the upper range.
