Undervoltage release Z-USA/400 248290

Undervoltage release – protection of electrical installations

The Z-USA/400 undervoltage release is a protective element that disconnects the circuit when the voltage drops below the set threshold. This is particularly important for protecting sensitive electrical equipment from damage caused by too low a supply voltage. The device is designed for mounting in electrical distribution boards and works with Eaton ZP-A series modular circuit breakers.

Functionality and application

This release, mounted to circuit breakers, reacts to a voltage drop, protecting connected devices from malfunction or damage. The use of an undervoltage release is crucial wherever voltage stability is important for the correct operation of devices – in homes, commercial buildings and industrial facilities. Thanks to its compact size (1 module width), it is easy to install even in crowded distribution boards.

• Protection against damage: Prevents equipment failures caused by too low voltage.
• Increased reliability: Provides a stable power supply and minimizes the risk of downtime.
• Simple installation: Designed to work with Eaton ZP-A modular circuit breakers, making installation and replacement easier.
• Wide application: Ideal for protecting devices sensitive to voltage fluctuations in various types of installations.
• Reliability: A product of Eaton, a synonym for quality and durability in the electrical installation industry.

Technical characteristics and construction

The Z-USA/400 release operates at a rated voltage of 400V AC and has one normally closed contact and one normally open contact, allowing signaling of the triggering status or remote control of auxiliary circuits. The lack of a residual current self-test means that the device focuses solely on the function of protecting against undervoltage. The construction of the release ensures its correct operation under standard working conditions and is in accordance with applicable safety standards. Installation is universal, providing flexibility during installation. It also has the possibility of connecting to a maximum of one main contact.