Undervoltage release 230VAC DPX-IS250/630 026173

Undervoltage release for isolators – protection and reliability

This undervoltage release, designed to work with DPX-IS 250 and 630 series isolators, is a key element in protecting the electrical installation from the effects of voltage drops. This device, manufactured by LEGRAND, allows for immediate disconnection of the circuit in the event of a dangerous voltage drop, minimizing the risk of equipment damage and ensuring user safety.

The release is compatible not only with isolators, but also with circuit breakers and overload relays, making it a versatile solution for a variety of applications. Its versatility will be appreciated by both installers and end-users looking for reliable protection of their installations.

Functionality and application

The main task of the release is to monitor the voltage in the electrical installation. If the voltage drops below the set threshold (230V AC in this model), the circuit is immediately disconnected. This reaction is particularly important in applications sensitive to voltage fluctuations, such as automation, control and lighting systems.

The release is used in:

• Building installations: protection against damage to electrical equipment caused by voltage drops.
• Industrial power systems: protection of sensitive machines and equipment from power interruptions.
• Automation and control systems: ensuring a stable power supply to automation elements.
• Electrical switchboards: as an additional protective element against the effects of improper operation of the power grid.

Characteristics and benefits

The 230VAC DPX-IS250/630 undervoltage release is characterized by a fast reaction to voltage changes and high reliability. Its design ensures easy installation and integration with existing DPX-IS series isolators. The lack of switching contacts means that the device focuses solely on the function of protecting against undervoltage, which translates into ease of use and reliable operation. Power consumption at 5VA (AC 50Hz) and 1.6W (DC) minimizes the impact on the energy efficiency of the system. This solution can avoid costly downtime caused by equipment failures resulting from voltage fluctuations. The device is dedicated to working with DPX-IS 250 and DPX-IS 630 isolators, ensuring full compatibility and optimal operation of the protection system.