---
title: Ziehl Voltage and Frequency Relay UFR1001E
lang: en
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description: 'The UFR1001E monitors voltage and frequency in plants for own generation
  of electricity. It fulfills the requirements of VDE-AR-N 4105 bdew-directive, G59/3,
  G83/2 and ÖVE/ÖNORM E 8001-4-712:2009 for '
modified: '2026-08-09T11:50:05.765102'
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# Ziehl Voltage and Frequency Relay UFR1001E

The UFR1001E monitors voltage and frequency in plants for own generation of electricity. It fulfills the requirements of VDE-AR-N 4105 bdew-directive, G59/3, G83/2 and ÖVE/ÖNORM E 8001-4-712:2009 for generators connected to the public grid.

For more information, we refer you to the datasheet and certificates below which are available to download. Or visit [www.ziehl.de](https://www.ziehl.com/englisch/indexe.html) and look for the UFR1001E under the Mains monitoring group.

Note that we also stock a pre-built box including the Ziehl UFR1001E, two in-line 63A contactors and a main circuit breaker: the [Anti-Islanding Box 63A single and three phase](https://www.victronenergy.com/accessories/anti-islanding-box-63a).

The UFR1001E monitors voltage and frequency in plants for own generation of electricity. It fulfills the requirements of VDE-AR-N 4105 bdew-directive, G59/3, G83/2 and ÖVE/ÖNORM E 8001-4-712:2009 for generators connected to the public grid. For more information, we refer you to the datasheet and certificates below which are available to download. Or visit www.ziehl.de and look for the UFR1001E under the Mains monitoring group.Note that we also stock a pre-built box including the Ziehl UFR1001E, two in-line 63A contactors and a main circuit breaker: the Anti-Islanding Box 63A single and three phase.
## Images
![Ziehl Voltage and Frequency Relay UFR1001E ](https://victron.polimex.co/web/image/product.image/1381/image_1920)
## Additional images
![AUS - Approved Protection Relays](https://victron.polimex.co/web/image/417611)
## Documents
- [Certificado de Conformidad RD1699:2011, RD413-2014 - UFR1001E](https://victron.polimex.co/web/content/417612/Certificado de Conformidad RD1699:2011, RD413-2014 - UFR1001E.md)
- [Certificate G59/3](https://victron.polimex.co/web/content/417606/Certificate G59/3.md)
- [Certificate G83/2 ](https://victron.polimex.co/web/content/417607/Certificate G83/2 .md)
- [Certificate OVE/ONORM E 8001-4-712:2009-12 ](https://victron.polimex.co/web/content/417605/Certificate OVE/ONORM E 8001-4-712:2009-12 .md)
- [Certificate de Conformite VDE 0126-1-1 / VFR2013/ VFR2014](https://victron.polimex.co/web/content/417608/Certificate de Conformite VDE 0126-1-1 / VFR2013/ VFR2014.md)
- [Certificate of Compliance DIN V VDE 0126-1-1](https://victron.polimex.co/web/content/417604/Certificate of Compliance DIN V VDE 0126-1-1.md)
- [Certificate of Compliance NRS 097-2-1:2017 ed2.0 South Africa](https://victron.polimex.co/web/content/417609/Certificate of Compliance NRS 097-2-1:2017 ed2.0 South Africa.md)
- [Declaration of Conformity - Auxiliary components (1)](https://victron.polimex.co/web/content/417610/Declaration of Conformity - Auxiliary components (1).md)
- [EC Declaration medium voltage UFR1001E](https://victron.polimex.co/web/content/417603/EC Declaration medium voltage UFR1001E.md)
- [EC Declaration of conformity Grid- and Plant Protection low voltage UFR1001E](https://victron.polimex.co/web/content/417602/EC Declaration of conformity Grid- and Plant Protection low voltage UFR1001E.md)
- [Ziehl Voltage and Frequency Relay UFR1001E](https://victron.polimex.co/web/content/410680/Ziehl Voltage and Frequency Relay UFR1001E.md)
- [Ziehl Voltage and frequency relay UFR1001E](https://victron.polimex.co/web/content/410679/Ziehl Voltage and frequency relay UFR1001E.md)

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