ABB CM-UFD Frequency, Voltage Monitoring Relay With SPDT Contacts, 24 → 240 V ac/dc, 1, 3 Phase

  • RS Stock No. 876-2557
  • Mfr. Part No. CM-UFD.M31
  • Brand ABB
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

CM-UFD Grid Feeding Relays

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

Specifications
Attribute Value
Monitoring Application Frequency, Voltage
Supply Voltage 24 → 240 V ac/dc
Contact Configuration SPDT
Voltage Sensitivity Overvoltage, Undervoltage
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
Time Delay ±20 ms
Frequency Sensing Range 40 → 70 Hz
Dimensions 108 x 67 x 90 mm
Number of Poles 1
Minimum Voltage Sensed 0 V ac
Current Range 6.4 mA @ 230 V ac (Input), 64 mA @ 24 V dc
Minimum Operating Temperature -20°C
Minimum Frequency Sensed 40Hz
Frequency Sensitivity Overfrequency, Underfrequency
Maximum Voltage Sensed 312 (2 Wire) V ac, 312 (4 Wire) V ac, 540 (3 Wire) V ac
Mounting Type DIN Rail, Snap-In
Terminal Type Screw
Operating Temperature Range -20 → +60 °C
Width 67mm
Length 108mm
Series CM-UFD
Standards Met BDEW, CE, EMC, IEC/EN 60255-1, RoHS, VDE-AR-N 4105:2011-08
Maximum Operating Temperature +60°C
Special Features Monitoring of ROCOF (Rate of Change of Frequency), Multiline Backlit LCD Display, Password Setting Protection
Maximum Frequency Sensed 70Hz
Height 90mm
8 In stock for FREE next working day delivery
Price Each
£ 635.88
(exc. VAT)
£ 763.06
(inc. VAT)
Units
Per unit
1 - 4
£635.88
5 - 9
£604.09
10 - 24
£572.29
25 - 49
£540.50
50 +
£508.70
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