The ABB CM‑UFD.MM (SVRR) 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 - 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 : SVRR (CM‑UFD.MM) ()

• Supply Voltage: – V AC/DC

• Measurement Range: L‑L: – V AC, L‑N: – V AC

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

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

• Communication: RS‑ port with Modbus RTU

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

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

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

• Weight: ~. kg

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