ABB – 1SVR560731R3700 – CM‑UFD.M22M Grid Feeding Monitoring Relay, Modbus RTU

The ABB CM‑UFD.M22M (1SVR560731R3700) is a multifunctional grid-feeding monitoring relay designed for use between renewable energy systems and the public grid. Featuring Modbus RTU communications and compliance with CEI 0-21 standards, it protects against over/undervoltage, over/underfrequency, vector shift, and ROCOF. It automatically disconnects and reconnects based on grid stability and supports integration with ABB Ability Energy & Asset Manager.  

Key Features:

• Model / Part #: 1SVR560731R3700 (CM‑UFD.M22M) ()

• Supply Voltage: 24–240 V AC/DC  

• Measurement Range: L‑L: 0–540 V AC, L‑N: 0–312 V AC  

• Monitoring Functions: Over/undervoltage, over/underfrequency, ROCOF, vector shift, phase sequence  

• Outputs: 3 change-over relays for grid disconnection/control  

• Communication: RS‑485 port with Modbus RTU  

• Display & Controls: Backlit LCD and menu interface, intuitive setup  

• Certifications: CEI 0‑21 certified, TÜV SÜD tested, ABB Ability™ EDCS integration enabled  

• Housing: 108 × 90 × 67 mm, screw terminals, DIN‑rail mounting ()

• Weight: ~0.37 kg