Siemens 3VA2140-5JQ32-0AA0

The 3VA21 3P 40A 55KA ETU5-LSIG NUT is an IEC molded case circuit breaker designed for low voltage applications. This unit operates with a medium breaking capacity and is equipped with an ETU560 electronic trip unit, which provides line protection and features overload protection settings ranging from 16A to 40A. Notably, it supports short-circuit protection with adjustable settings of 0.6 to 10 times the rated current (In) and 1.5 to 12 times for instantaneous protection (Ii).

With dimensions of 4.1 x 7.1 x 4.2 inches, the device is suitable for mounting on a DIN rail and is constructed to IP40 protection standards. It features a front-side connection for the main current circuit and utilizes a screw connection for electrical links. The circuit breaker is designed to integrate earth fault protection and can accommodate an optional motor drive.

This unit is manufactured in the Czech Republic and provides a complete device with a protection unit, ensuring reliable operation in various industrial settings. The adjustment range for the undelayed short-circuit release is set at 60A, while the delayed short-circuit release is adjustable to 24A, facilitating precise control over operational parameters.