Siemens 3VA2440-5JQ42-0AA0

The 3VA24 circuit breaker is designed for low voltage applications, featuring a frame that supports a medium breaking capacity (class M). With a rated current of 400A, it operates effectively at 690V and provides a breaking capacity of 55kA at 415V. The integrated electronic trip unit ETU560 offers comprehensive overload protection and ground-fault protection, which can be adjusted to suit operational requirements.

This device includes a nut keeper for secure connection via lug terminals, ensuring reliable performance. The measurement dimensions are 7.2 inches in width, 9.8 inches in height, and 5.4 inches in depth. With IP40 protection, it is suitable for various environments and can be mounted on standard DIN rails. The unit features a rocker lever control mechanism, facilitating user-friendly operation.

Notably, it includes features such as integrated earth fault protection and supports an adjustable overload release current setting ranging from 160 A to 400 A. Short-circuit protection is adjustable between 0.6 to 10 times the rated current, enhancing safety in electrical installations.