Siemens 3VA2140-5HN46-0AA0

The 3VA21 4P 40A 55KA ETU3-LSI BOX is a low voltage circuit breaker designed for line protection in industrial applications. This device features a 4-pole setup with a rated current of 40A and a medium breaking capacity classified as M, achieving an impressive short-circuit breaking capacity of 55kA at 415V. The device is equipped with the ETU350 electronic trip unit, which provides overload protection adjustable between 16A and 40A, along with short-circuit protection settings ranging from 1.5 to 10 times the rated current.

With dimensions of 5.5 x 7.1 x 4.2 inches, this circuit breaker incorporates a robust design suitable for DIN rail mounting, ensuring easy installation. The electrical connection is facilitated through a frame clamp located at the front side of the device. Additionally, the circuit breaker is designed with an IP40 protection rating, ensuring reliable operation in various environments, and does not include integrated earth fault protection or under voltage release features.