Voltage drop trigger with 2 NO contacts NZM1-XUHIV208-240AC 259539

Undervoltage release – reliable protection and functionality

The undervoltage release with two contacts NZM1-XUHIV208-240AC is a key element ensuring safety and reliable operation in electrical installations. Designed to work with switches of the NZM series, it offers effective protection against voltage drop, which is particularly important in applications requiring high availability and continuous power supply. This device is widely used in emergency shutdown systems, providing safe disconnection of the load in case of voltage problems.

Application and functions

This release is designed for mounting in NZM1(-4) and N(S)1(-4) switches. Its main function is to immediately disconnect the power switch when the control voltage drops below 35-70% of the rated voltage (Us). Therefore, in the event of a power failure or voltage problems, the circuit is immediately disconnected, minimizing the risk of damage and ensuring user safety. This release works perfectly in conjunction with EMERGENCY STOP buttons, creating a comprehensive safety system. Additionally, it provides reliable protection against accidental contact with the main switch contacts when attempting to switch on when the release is not energized.

Installation and compatibility

The installation of the release is simple and flexible thanks to the modular design of the NZM series. It should be noted that the undervoltage release is not mounted simultaneously with the leading auxiliary contact NZM..-XHIV.. or the operating current release NZM..-XA.... The electrical connection is made using screw connections, which ensures a stable and secure connection of the wires. The device is adapted to work with AC voltage 208…240V at both 50Hz and 60Hz frequency.