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Victron Anti-Islanding Relay – Ziehl Voltage and Frequency Relay UFR1001E


  • Dual-channel monitoring for redundancy and fault tolerance.
  • Voltage and Frequency Detection for grid protection.
  • Meets VDE-AR-N 4105, G98/G99, and other standards.
  • Output Relay Monitoring for enhanced reliability.
  • Pre-built Box Option with integrated components (sold separately).



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Ensure Seamless Grid Connection with the Victron Anti-Islanding Relay – Ziehl UFR1001E

The Victron Anti-Islanding Relay – Ziehl UFR1001E is your guardian angel for grid-connected renewable energy systems. This advanced relay seamlessly integrates with your solar or wind power installation, guaranteeing safety and compliance with regulations.


  • Dual-Channel Monitoring: Provides superior redundancy and fault tolerance for uninterrupted operation.
  • Voltage and Frequency Detection: Disconnects your system from the grid in case of abnormal voltage or frequency fluctuations, preventing potential damage and accidents.
  • Standards Compliance: Meets VDE-AR-N 4105, G98/G99, and other regulations for grid-connected generators.
  • Output Relay Monitoring: Verifies the functionality of connected switches for enhanced system reliability.
  • Pre-built Box Option: This option is available with integrated contactors and circuit breakers for a convenient, ready-to-install solution (sold separately).


  • Safety First: This mitigates the risk of islanding, a dangerous condition in which your solar system continues to generate electricity even during a grid outage.
  • Peace of Mind: Ensures compliance with grid interconnection standards for worry-free operation.
  • Enhanced Reliability: Dual-channel design and switch monitoring minimise downtime and ensure system integrity.
  • Easy Installation: The compact design simplifies integration into your existing solar setup.
  • Scalable Solution: Accommodates both single-phase and three-phase systems (pre-built box option).

Why Choose the Victron Anti-Islanding Relay – Ziehl UFR1001E?

  • Unmatched Protection: Offers superior safety and reliability for your solar investment.
  • Guaranteed Compliance: Ensures adherence to all relevant grid interconnection standards.
  • Versatile Design: Adaptable to various solar system configurations.
  • Simple Integration: Easy to install and maintain.

Protect your solar investment and comply with safety regulations with the Victron Anti-Islanding Relay – Ziehl UFR1001E.

Contact us today to discuss your specific requirements and ensure a seamless grid connection for your solar power.

Specification: click here

Warranty: 5 Years by Victron Energy


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