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Victron Energy Anti-Islanding Relay UFR1001E

A highly accurate mains protection relay used to monitor voltage and frequency in grid-tied generation systems. It ensures compliance with UK regulations like G59/3 and G83/2, automatically disconnecting the generator from the mains supply in the event of a grid fault.

Advanced voltage and frequency mains monitoring. Required component for ESS (Energy Storage System) grid compliance. Meets key UK grid regulations: G59/3 and G83/2. Provides reliable anti-islanding protection for safety. One-fault-proof design for high reliability. Dimensions: 90 x 105 x 69mm Weight: 0.25kg
£624.00
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SKU: REL100100000
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Product Details

The Victron Energy Anti-Islanding Relay is an essential mains monitoring device for grid-tied power generation systems using Victron MultiPlus or Quattro inverter/chargers with ESS (Energy Storage System). This advanced relay is designed to ensure compliance with strict international and UK grid connection regulations, including G59/3 and G83/2, by continuously monitoring voltage and frequency.

When connected to the public electricity grid, the relay reliably detects a grid failure or disruption and automatically isolates the generating system (e.g., solar PV or battery storage) to prevent ‘islanding’, a hazardous condition where a local generator continues to power the grid segment. The unit provides one-fault-proof protection and can also be used for monitoring a second generating plant. It is a robust and crucial component for legal and safe energy systems feeding into the mains supply.

Product Specifications

Power Supply

  • Rated Supply Voltage (Us): AC/DC 24 – 270 V, 0/45 – 65 Hz
  • Operating Range (DC): 20.4 – 297 V
  • Operating Range (AC): 20.4 – 297 V
  • Power Consumption: < 5 VA

Voltage Monitoring

  • Measurement Range (Phase-Phase): AC 15 – 530 V
  • Setting Range (Phase-Phase): AC 15 – 520 V
  • Measurement Range (Phase-Neutral): AC 10 – 310 V
  • Setting Range (Phase-Neutral): AC 15 – 300 V
  • Measurement Method: True RMS
  • Accuracy: ±0.6% (with neutral), ±0.8% (without neutral)
  • Hysteresis: Adjustable 1.0 – 180 V
  • 10-Minute Average Monitoring: Yes (quality of voltage)

Frequency Monitoring

  • Measurement Range: 40 – 70 Hz
  • Setting Range: 45.00 – 65.00 Hz
  • Measurement Accuracy: ± 0.04 Hz
  • Hysteresis: 0.05 – 10.00 Hz

Additional Monitoring Functions

  • Vector Shift: 2.0 – 65.0° (Delay < 50 ms)
  • ROCOF (df/dt): 0.100 – 5.000 Hz/s (4 – 50 cycles)
  • Under/Overvoltage Response: Integrated alarm indicators (U>, U<)
  • Under/Overfrequency Response: Integrated alarm indicators (f>, f<)

Inputs & Outputs

  • Relay Outputs: 2 change-over contacts
  • Digital Outputs (Isolated): 5 outputs (DC 4.5 – 27 V, max 20 mA each)
  • Input for Standby: Remote shutoff input (e.g., for RCR control)
  • Feedback Inputs: Used to monitor connected switches and circuit breakers

Timer & Delay Settings

  • Switching Delay (dAL): Adjustable 0.05 – 300.0 s
  • Switching-Back Delay (doF): Adjustable 0 – 6,000 s
  • Relay Response Time: < 50 ms (Vector Shift)

Physical & Environmental

  • Design: Housing for DIN-rail mount (35 mm) or screw mounting (M4)
  • Dimensions (H x W x D): 90 x 105 x 69 mm (Mounting height: 66 mm)
  • Weight: approx. 250 g
  • Protection Class: IP30 (Housing), IP20 (Terminals)
  • Operating Temperature: -20 °C to +55 °C
  • Storage Temperature: -25 °C to +70 °C
  • Overvoltage Category: III
  • Pollution Degree: 2

Standards & Compliance

  • Grid Standards: VDE-AR-N 4105:2018-11, VDE-AR-N 4110:2018-11, G98, G99, DIN V VDE 0126-1-1, NRS 097-2-1:2017, Synergrid C10/C11, EN 50438:2013, RD1699:2011, ÖVE/ÖNORM E 8001-4-712.
  • Safety: EN 60255
  • EMC Immunity: EN 61000-6-2
  • EMC Emission: EN 61000-6-3

Shipping & Collection

Tracked Delivery (Currently 1-3 business days):

  • Free over £250.
  • £5.99 for orders under £250.
  • £5.99 for orders under £50.

Next Business Day Delivery:

  • £15 Flat Rate.

Collection:

  • Free to collect from our warehouse.

Pre-Order:

  • 5-10 Business Days delivery unless otherwise stated.

Shipping Policy

Datasheets
Victron Energy Anti-Islanding Relay UFR1001E - Manual
Victron Energy Anti-Islanding Relay UFR1001E - Data Sheet
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