This Schneider ACB NW NT opening undervoltage release MN/UVR is a reliable and efficient solution for detecting and releasing undervoltage conditions in your circuit. It is suitable for use in a variety of applications, including instruments, industrial equipment, and electronics. The fixed mounting style and compact size (measuring 3.5 cm in height, 8.3 cm in length, and 6.1 cm in width) make it easy to install and use in your setup. With a voltage range of 380-480 V and AC current type, this circuit breaker accessory is designed to provide reliable and accurate performance.