Under Voltage Release for Motor Protection Circuit Breakers
Hager MZ528N Under Voltage Release
The Hager MZ528N Under Voltage Release is a safety accessory designed for compatible Hager motor protection circuit breakers. It automatically trips the breaker when the control voltage drops below a safe level, helping protect equipment and prevent unsafe restart conditions.
Operating on a 230V AC control voltage, the MZ528N ensures that motors and electrical equipment cannot automatically restart after a power failure. This makes it an essential component in motor starter systems and industrial safety installations.
Enhanced Motor Protection
Under voltage releases improve operational safety by disconnecting the motor protection breaker when the supply voltage is lost or significantly reduced. This prevents unexpected motor restart once the power supply is restored.
- Designed for Hager motor protection circuit breakers
- Command voltage: 230V AC
- Automatic tripping during voltage loss
- Compact accessory module
- Suitable for industrial motor starter systems
Typical Applications
The Hager MZ528N is commonly used in control panels and motor starter assemblies where equipment safety and controlled restart are required.
- Motor starter assemblies
- Industrial control panels
- Machinery safety circuits
- Automation and protection systems
Technical Specifications
- Command voltage: 230V AC
- Inrush power absorbed: 5 VA
- Protection class: IP20
- Operating temperature: -25°C to +55°C
- Width: 17.5 mm
The MZ528N provides reliable undervoltage protection for motor starter systems, improving operational safety and ensuring controlled shutdown during supply interruptions.
