What this MCCB carries
The Siemens SENTRON 3VA1032-4ED36-0DC0 is a 3-pole molded case circuit breaker rated for 32 A continuous current, with a TM210 thermal-magnetic overcurrent release. Breaking capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — so it handles high-fault utility feeds and transformer secondaries without cascading upstream. Rated insulation voltage is 800 V, meaning it's safe for 480/277 V and 600 V panels with headroom. The TM210 release is a fixed thermal-magnetic type — no interchangeable rating plugs, so what you see (32 A) is what the branch circuit gets. That simplifies BOM management: one order code per amp rating, no loose parts to lose during panel build. Undervoltage release (UVR) is built in, and the auxiliary contact block carries 2 HQ switches for status feedback to the PLC or annunciator.
Panel fit and thermal derating
Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a standard SENTRON 3VA footprint that drops into existing DIN-rail or screw-mounted panel layouts. Width at 76.2 mm means it occupies three modular spaces on a 25 mm grid; plan your gland-plate fill factor accordingly. Thermal derating is minimal up to 50 °C — still rated 32 A. At 55 °C it drops to 30.72 A, at 60 °C to 30.08 A, at 65 °C to 29.44 A, and at 70 °C to 28.8 A. If your panel ambient runs hot (say, a packed enclosure next to a furnace line), size the load side for the derated figure, not the nameplate. Front IP40 keeps dust out of the breaker mechanism; the rest of the case is open to the enclosure interior for heat shedding.
What the auxiliary release does
The integrated undervoltage release (UVR) trips the breaker when control voltage drops below a threshold — standard for emergency-stop circuits and undervoltage protection on motor feeders. The auxiliary contact version is 2 HQ switches (high-rupturing-capacity changeover contacts), rated for signaling to a PLC input or status lamp. If you need a shunt trip instead of UVR, this isn't the variant; the UVR is fixed at order-code level.