The Siemens 3VA1040-2ED32-0AA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) designed for line protection, with a TM210 thermal-magnetic release that provides overload and short-circuit protection in distribution panels and downstream feeder circuits. Rated 40 A continuous at 40 °C, it derates to 37 A at 70 °C — the thermal curve matters if the breaker sits in a warm cabinet or next to other heat sources. Interrupting capacity reaches 52.5 kA at 240 V and 32 kA at 415 V, so it clears high-fault currents typical in industrial mains without upstream fuses having to open first.
The 3VA1040-2ED32-0AA0 measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. Front face carries an IP40 rating.