The Siemens SENTRON 3VA1140-3EE36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 40 A continuous at 40 °C, with a TM220 thermal-magnetic trip unit — meaning the thermal element handles overloads and the magnetic element clears short-circuits without auxiliary electronics. At 415 V the interrupting rating is 52.5 kA, at 440 V it drops to 32 kA, and at 500 V and 690 V it holds at 11.9 kA — so the voltage your system runs at determines the available fault current this breaker can clear. The current rating is temperature-dependent: it carries the full 40 A from 40 °C through 50 °C, then derates to 39 A at 55 °C and 60 °C, 38 A at 65 °C, and 37 A at 70 °C.
Integration and footprint
The 3VA1140-3EE36-0AA0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep — a 3-pole MCCB that fits standard Siemens 3VA panel-board and enclosure cutouts.