ABB – 1SVR560731R3701 (CM‑UFD.M31M) – Grid‑Feeding Monitoring Relay with Modbus

Main Features

• Device Type: Multifunctional grid feed monitoring relay designed to manage safe connection/disconnection of renewable energy systems to public grid  

• Power Supply: 24–240 V AC/DC, suitable for various installation types  

• Measurement Range:

  • Phase-to-phase voltage: 0–540 VAC

  • Phase-to-neutral voltage: 0–312 VAC  

• Monitoring Functions:

  • Over/undervoltage

  • Over/underfrequency

  • Rate of change of frequency (ROCOF)

  • Vector shift detection

  • Neutral interruption protection  

• Outputs: 3 change‑over (SPDT) relay contacts for controlling breakers or disconnectors  

• Communication: Serial Modbus RTU for remote setup, monitoring and integration with ABB Ability and SCADA systems  

• Standards Compliance:

  • VDE‑AR‑N 4105 / 4110 / 4120 certified (Germany)

  • TÜV‑tested for grid stability applications  

• Interface: Backlit LCD with intuitive menu and navigation buttons for onsite configuration and diagnostics  

• Form Factor: Compact DIN‑rail (108 × 90 × 67 mm) with screw terminal connections