Undervoltage release for NZM2/3 NZM2/3-XU208-240AC 259499

Undervoltage release – reliable disconnection in case of voltage problems

This undervoltage release, designed for NZM2/3 series circuit breakers, provides effective disconnection of the circuit in the event of a drop in control voltage. This is a key solution for ensuring safety and protecting the installation, especially in applications requiring reliable operation in emergency situations. The device is compatible with NZM2(-4), N(S)2(-4), NZM3(-4) and N(S)3(-4) circuit breakers.

Application and functionality

This release is widely used in emergency shutdown systems, working with emergency stop buttons. Its operation is based on the principle of disconnecting the circuit breaker when the control voltage drops below 35-70% of the nominal value (Us). In addition, the absence of voltage on the release prevents accidental switching on of the circuit breaker, providing protection against contact with the main contacts. This is an important safeguard during maintenance and service work.

Compatibility and installation

It is worth remembering that the undervoltage release should not be installed simultaneously with the leading auxiliary contact NZM..-XHIV.. or the operating current release NZM..-XA.... The range of accessories for the NZM series is wide and includes devices adapted for international use. Installation is simple and flexible thanks to the modular design of function groups. The release is connected to the circuit breaker using a screw connection.

Benefits for the installer and user:

• Safety: Provides reliable disconnection in case of power problems, protecting equipment and personnel.
• Versatility: Compatible with a wide range of NZM2/3 series circuit breakers.
• Easy installation: Modular design makes installation and integration with existing systems easier.
• Protection against accidental switching on: Lack of voltage on the release blocks the possibility of starting the circuit breaker, increasing safety during servicing.
• Standards: Accessories for EATON circuit breakers are characterized by high quality workmanship and meet strict safety standards.
• Universality: Works with both LZM/LN and NZM/N circuit breakers.