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Quick Details

Operating Temperature Range: -20 → +60 °C
Frequency Sensing Range: 40 → 60 Hz
Frequency Sensitivity: Overfrequency, Underfrequency
Minimum Operating Temperature: -20°C
Maximum Operating Temperature: +60°C
Terminal Type: Screw
Electrical Phase: 1, 3
Voltage Sensing Range: 0 → 312 (2 Wire) V ac, 0 → 312 (4 Wire) V ac, 0 → 540 (3 Wire) V ac
Number of Poles: 1
Supply Voltage: 24 → 240 V ac/dc
Mounting Type: DIN Rail, Snap-In
Voltage Sensitivity: Overvoltage, Undervoltage
Standards Met: CE, CEI 0-21: 2012-06 + CEI 0-21, EMC, IEC/EN 60255-1, RoHS, V1: 2012-12 + A70 Terna
Width: 67mm
Current Range: 6.4 mA @ 230 V ac (Input), 64 mA @ 24 V dc
Maximum Voltage Sensed: 312 (2 Wire) V ac, 312 (4 Wire) V ac, 540 (3 Wire) V ac
Time Delay: ±20 ms
Brand: ABB
Minimum Frequency Sensed: 40Hz
Minimum Voltage Sensed: 0 V ac
Contact Configuration: SPDT
Monitoring Application: Frequency, Voltage
Maximum Frequency Sensed: 60Hz
Height: 90mm
Special Features: Autotest Function, Monitoring of ROCOF (Rate of Change of Frequency), Multiline Backlit LCD Display
Series: CM-UFD
Dimensions: 108 x 67 x 90 mm
Length: 108mm

Specifications

The expertly designed CM-UFD range of grid feeding relays ensures safe and reliable monitoring of numerous grid parameters when feeding energy into the public grid.
Main features include-
Monitoring of voltage and frequency in single and three-phase mains (2-wire, 3-wire, or 4-wire AC systems)
0-minutes average value monitoring
Rate of change of frequency monitoring configurable
Vector shift detection configurable
Error memory for up to 99 entries
Password protection available