The Siemens 3VA2140-5JP36-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a continuous current rating of 40 A and an adjustable overcurrent trip range from 60 A minimum to 480 A maximum, driven by the ETU550 electronic trip unit. The 3-pole frame delivers interrupting capacities of 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V (–).
Trip unit and selectivity
The ETU550 electronic release supports adjustable long-time, short-time, instantaneous, and ground-fault protection curves, which means this breaker can be coordinated downstream of a larger MCCB or upstream of branch MCBs without nuisance tripping. The 60–480 A adjustment band lets the same frame serve multiple load sizes — useful when stocking a single spare for a range of feeders. Rated insulation voltage is 800 V, and the front face carries IP40 protection — suitable for enclosed panel mounting where the breaker is not exposed to dripping water or dust ingress.
Dimensions and integration
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling. The communication function allows integration with a BMS or PLC for remote monitoring and trip-event logging.