Schneider Electric GZ1AU385 Undervoltage Release 380-400V AC

The Schneider Electric GZ1AU385 is a specialized undervoltage release designed to enhance the safety and reliability of motor circuit breakers. Operating within a voltage range of 380-400V AC, this accessory provides critical protection by monitoring the supply voltage and automatically triggering the circuit breaker to trip if the voltage falls below a predefined threshold. By disconnecting the circuit during low-voltage events, it prevents potential damage to motors and sensitive electrical equipment, ensuring operational continuity and safety in industrial and commercial environments.

Advantages

This undervoltage release offers a robust solution for preventing equipment failure due to voltage instability. Its primary benefit lies in its ability to provide an immediate, automatic response to power fluctuations, which is essential for protecting expensive motor assets. The device is engineered for seamless integration with compatible motor circuit breakers, maintaining a compact footprint while delivering high-performance monitoring. Its reliable design ensures that the system remains protected against the risks associated with brownouts or unexpected power drops.

Suitable for

• Industrial motor control systems
• Protection of electrical equipment against low-voltage conditions
• Integration with compatible motor circuit breakers
• Commercial power distribution panels

This device is not suitable for applications operating outside the specified 380-400V AC voltage range. It is also not intended for use as a standalone circuit breaker or as a replacement for primary overcurrent protection devices.

Key specifications

• Voltage rating: 380-400V AC
• Compatibility: Designed for motor circuit breakers
• Function: Automatic tripping on undervoltage

Installation should be performed by a qualified professional in accordance with local electrical regulations. The unit is mounted directly onto the compatible circuit breaker, ensuring a secure mechanical and electrical connection. Once installed, the device monitors the supply line continuously without requiring manual intervention during normal operation.

What to consider before purchase

• Verify the voltage requirements of your existing electrical system
• Ensure compatibility with your specific motor circuit breaker model
• Confirm that the installation environment meets standard electrical safety requirements

Usage recommendations: Regularly inspect the electrical system to ensure that the undervoltage release is functioning correctly and that all connections remain secure. Do not attempt to modify the internal components of the device.