ABB – CM-UFD.M22 (1SVR560730R3400) – Grid-Feeding Monitoring Relay

The ABB CM-UFD.M22 (part number 1SVR560730R3400) is a multifunction grid-feeding monitoring relay designed to provide interface protection for renewable energy systems. Installed between local generation and the utility grid, it ensures safe synchronization by monitoring voltage, frequency, Rate-of-Change-of-Frequency (ROCOF), and neutral interruption per CEI 0–21 standards.

Key Features:

• Model: CM‑UFD.M22, ABB 1SVR560730R3400  

• Function: Grid-feeding monitoring relay for interface protection in distributed generation  

• Supply Voltage: 24–240 V AC/DC  

• Measurement Range: 0–540 V line-to-line; 0–312 V line-to-neutral  

• Monitored Parameters:

 – Over-/undervoltage (10-min average + instantaneous)

 – Over-/underfrequency

 – Interruptions (neutral line interruption)

 – ROCOF (rate of change of frequency)  

• Outputs: 3 × changeover (SPDT) contacts rated 4 A @ 250 V AC  

• Mounting: DIN-rail (DIN 35 mm) with screw terminals; IP20 enclosure  

• Operating Conditions: –20 °C to +60 °C; storage –25 °C to +50 °C; IP20

• Dimensions & Weight: 108 × 90 × 67 mm; approx. 0.30 kg  

• Standards: CEI 0‑21, EN 50178, IEC 60255‑27, IEC 61000‑6‑2/‑6‑3; RoHS compliant