Undervoltage release NA2 125-630AF AC200-240V 004671153

Undervoltage release – protection of installations and devices

The NA2 125-630AF undervoltage release is a protective element that reacts to a voltage drop in the electrical installation. Its task is to disconnect the circuit when the voltage falls below a defined threshold, thus protecting connected devices from damage. It is compatible with both circuit breakers and cam switches, making it a versatile solution for various applications.

Functionality and application

This device is designed for mounting in electrical circuits with a voltage of AC 200-240V. Its main purpose is to protect against the effects of too low voltage, which may be caused, for example, by network overload, short circuit or transformer failure. The undervoltage release finds application in:

• Electrical power distribution boards: as an additional protection against voltage irregularities.
• Industrial installations: where sensitive devices require a stable power supply.
• Residential and commercial buildings: protection of RTV, household appliances and building automation systems.
• Uninterruptible power supply (UPS) systems: ensuring proper operation of devices during switching to backup power.

Characteristics and installation

The NA2 release is characterized by a screw connection, which ensures a secure and durable connection with the wires. The lack of delay in operation (delayed: false) means an immediate reaction to a voltage drop, which is important in situations requiring rapid intervention. Installation is done by direct connection to a circuit breaker or cam switch – the device has been designed with easy integration with existing electrical systems in mind. This allows installers to quickly and efficiently introduce an additional layer of security into the installation.