Monitoring Relays

  • What are Monitoring Relays?

    Monitoring relays are electrical devices that are used to monitor various parameters in a power system, such as voltage, current, temperature, and frequency, and trigger an alarm or action if the values go beyond a preset threshold. They are designed to detect abnormal operating conditions in a system and alert operators or take corrective action to pre...

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RS PRO Current Monitoring Relay, Three Phase, 1NO/1NC, DIN Rail Mount
RS PRO Current Monitoring Relay, Three Phase, 1NO/1NC, DIN Rail Mount
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RS Stock No.: 434-506Brand: RS PRO

26.582 OMR

26.582 OMR Each (ex VAT)

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1

Available in multiples of 1
126.582 OMR
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RS Pro
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Current
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-
Three
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-
-
1NO/1NC
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-
-
-
DIN Rail Mount
40A
100A
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-
0.1 → 20s
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-
-
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-
44mm
Error Delay Time Adjustable
CE
84.5mm
-20°C
-
-
-
-
-
-
40 → 100A
-20 to 55°C
55°C
75mm
44 x 84.5 x 75mm
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RS PRO Phase, Voltage Monitoring Relay, Single Phase, CO, 270 → 370, 410 → 510V ac, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, Single Phase, CO, 270 → 370, 410 → 510V ac, DIN Rail
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RS Stock No.: 558-898Brand: RS PRO

23.163 OMR

23.163 OMR Each (ex VAT)

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1

Available in multiples of 1
123.163 OMR
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RS Pro
-
Voltage
-
-
1
-
-
150 → 300V ac
CO
-
Overvoltage, Undervoltage
-
-
DIN Rail
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-
-
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-
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-
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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Screw
RS PRO Phase, Voltage Monitoring Relay, Three Phase, CO, 150 → 210, 240 → 300V ac, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, Three Phase, CO, 150 → 210, 240 → 300V ac, DIN Rail
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RS Stock No.: 558-901Brand: RS PRO

22.978 OMR

22.978 OMR Each (ex VAT)

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1

Available in multiples of 1
122.978 OMR
Add to basket
RS Pro
-
Voltage
-
-
1
-
-
150 → 300V ac
CO
-
Overvoltage, Undervoltage
-
-
DIN Rail
-
-
-
-
-
-
-
-
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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Screw
RS PRO Phase, Voltage Monitoring Relay, Three Phase, CO, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, Three Phase, CO, DIN Rail
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RS Stock No.: 558-892Brand: RS PRO

19.698 OMR

19.698 OMR Each (ex VAT)

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1

Available in multiples of 1
119.698 OMR
Add to basket
RS Pro
-
Voltage
-
-
3
-
-
-
CO
-
Voltage Asymmetry
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-
DIN Rail
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-
-
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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Screw
RS PRO Phase, Voltage Monitoring Relay, Three Phase, CO, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, Three Phase, CO, DIN Rail
Add to parts list
RS Stock No.: 558-897Brand: RS PRO

16.748 OMR

16.748 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
116.748 OMR
Add to basket
RS Pro
-
Voltage
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-
3
-
-
-
CO
-
Voltage Asymmetry
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-
DIN Rail
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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Screw
RS PRO Voltage Monitoring Relay, Single Phase, 1NO, 120 → 300V ac, DIN Rail Mount
RS PRO Voltage Monitoring Relay, Single Phase, 1NO, 120 → 300V ac, DIN Rail Mount
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RS Stock No.: 434-521Brand: RS PRO

23.453 OMR

23.453 OMR Each (ex VAT)

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1

Available in multiples of 1
123.453 OMR
Add to basket
RS Pro
-
Voltage
-
-
Single
-
-
120 → 300V ac
1NO
-
Overvoltage
-
-
DIN Rail Mount
-
-
-
-
-
0.1 → 600s
-
-
-
-
-
52.9mm
Built-In Current Transformer, Built-In Contactor
CE
67.5mm
-20°C
-
-
300V
120V
-
-
-
-20 to 55°C
55°C
90.3mm
52.9 x 67.5 x 90.3mm
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RS PRO Voltage Monitoring Relay, Three Phase, 1NO/1NC, 230 → 460V ac, DIN Rail or Panel
RS PRO Voltage Monitoring Relay, Three Phase, 1NO/1NC, 230 → 460V ac, DIN Rail or Panel
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RS Stock No.: 434-520Brand: RS PRO

18.717 OMR

18.717 OMR Each (ex VAT)

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1

Available in multiples of 1
118.717 OMR
Add to basket
RS Pro
-
Voltage
-
-
Three
-
-
230 → 460V ac
1NO/1NC
-
Overvoltage
-
-
DIN Rail or Panel
-
-
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-
Phase Loss
0.1 → 10s
-
-
-
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-
44mm
Phase Sequence Control, With PTC, Non-Neutral
CE
84.5mm
-20°C
-
-
460V
230V
-
-
-
-20 to 55°C
55°C
75mm
44 x 84.5 x 75mm
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RS PRO Current Monitoring Relay, Single Phase, 150 → 260V ac, DIN Rail
RS PRO Current Monitoring Relay, Single Phase, 150 → 260V ac, DIN Rail
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RS Stock No.: 132-174Brand: RS PRO

13.190 OMR

13.190 OMR Each (ex VAT)

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1

Available in multiples of 1
113.190 OMR
Add to basket
RS Pro
-
Current
-
-
Single
-
-
150 → 260V ac
-
-
-
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DIN Rail
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RS PRO Liquid Level Monitoring Relay, Single Phase, 150 → 260V ac, DIN Rail
RS PRO Liquid Level Monitoring Relay, Single Phase, 150 → 260V ac, DIN Rail
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RS Stock No.: 132-171Brand: RS PRO

12.197 OMR

12.197 OMR Each (ex VAT)

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1

Available in multiples of 1
112.197 OMR
Add to basket
RS Pro
-
Liquid Level
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-
Single
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-
150 → 260V ac
-
-
-
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DIN Rail
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RS PRO Phase Monitoring Relay, Three Phase, 150 → 260V ac, DIN Rail
RS PRO Phase Monitoring Relay, Three Phase, 150 → 260V ac, DIN Rail
Add to parts list
RS Stock No.: 122-217Brand: RS PRO

5.897 OMR

5.897 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
15.897 OMR
Add to basket
RS Pro
-
Phase
-
-
Three
-
-
150 → 260V ac
-
-
-
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DIN Rail
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RS PRO Phase Monitoring Relay, Three Phase, 380V ac, DIN Rail
RS PRO Phase Monitoring Relay, Three Phase, 380V ac, DIN Rail
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RS Stock No.: 122-216Brand: RS PRO

8.068 OMR

8.068 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
18.068 OMR
Add to basket
RS Pro
-
Phase
-
-
Three
-
-
380V ac
-
-
-
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DIN Rail
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RS PRO Phase Monitoring Relay, Three Phase, 380V ac, DIN Rail
RS PRO Phase Monitoring Relay, Three Phase, 380V ac, DIN Rail
Add to parts list
RS Stock No.: 132-172Brand: RS PRO

8.009 OMR

8.009 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
18.009 OMR
Add to basket
RS Pro
-
Phase
-
-
Three
-
-
380V ac
-
-
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DIN Rail
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RS PRO Phase Monitoring Relay, Three Phase, 380V ac, DIN Rail
RS PRO Phase Monitoring Relay, Three Phase, 380V ac, DIN Rail
Add to parts list
RS Stock No.: 132-173Brand: RS PRO

10.032 OMR

10.032 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
110.032 OMR
Add to basket
RS Pro
-
Phase
-
-
Three
-
-
380V ac
-
-
-
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DIN Rail
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RS PRO Voltage Monitoring Relay, Single Phase, 220V ac, DIN Rail
RS PRO Voltage Monitoring Relay, Single Phase, 220V ac, DIN Rail
Add to parts list
RS Stock No.: 122-215Brand: RS PRO

12.301 OMR

12.301 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
112.301 OMR
Add to basket
RS Pro
-
Voltage
-
-
Single
-
-
220V ac
-
-
-
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-
DIN Rail
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RS PRO Voltage Monitoring Relay, Single Phase, 220V ac, DIN Rail
RS PRO Voltage Monitoring Relay, Single Phase, 220V ac, DIN Rail
Add to parts list
RS Stock No.: 122-210Brand: RS PRO

9.205 OMR

9.205 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
19.205 OMR
Add to basket
RS Pro
-
Voltage
-
-
Single
-
-
220V ac
-
-
-
-
-
DIN Rail
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-
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RS PRO Voltage Monitoring Relay, Three Phase, 380V ac, DIN Rail
RS PRO Voltage Monitoring Relay, Three Phase, 380V ac, DIN Rail
Add to parts list
RS Stock No.: 122-212Brand: RS PRO

10.817 OMR

10.817 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
110.817 OMR
Add to basket
RS Pro
-
Voltage
-
-
Three
-
-
380V ac
-
-
-
-
-
DIN Rail
-
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RS PRO Voltage Monitoring Relay, 1 Phase, SPDT, 12 → 24V dc, DIN Rail
RS PRO Voltage Monitoring Relay, 1 Phase, SPDT, 12 → 24V dc, DIN Rail
Add to parts list
RS Stock No.: 102-6130Brand: RS PRO

34.702 OMR

34.702 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
134.702 OMR
Add to basket
RS Pro
-
Voltage
-
-
1
-
-
12 → 24V dc
SPDT
-
Undervoltage
-
-
DIN Rail
-
-
-
-
-
0 → 30s
-
-
-
L
1
66.5mm
-
-
17.5mm
-20°C
-
-
24V dc
12V dc
-
-
-
+60°C
+60°C
89mm
17.5 x 66.5 x 89mm
Screw
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
Add to parts list
RS Stock No.: 102-6136Brand: RS PRO

37.861 OMR

37.861 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
137.861 OMR
Add to basket
RS Pro
-
Phase, Voltage
-
-
3
-
-
-
SPDT
-
Undervoltage
-
-
DIN Rail
-
-
-
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Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
-
-
L
1
66.5mm
2 LEDs for the Indication of Operational States, Adjustment for Time Delay, Adjustment for Undervoltage Trip Level, Detects Incorrect Phase Sequence & Phase Loss, Measures Phase to Phase Voltages, Microprocessor Based Relay, Monitors Own Supply & Detects an Undervoltage Condition on One or more Phases, True RMS Monitoring
-
17.5mm
-20°C
-
-
-
-
-
-
-
+60°C
+60°C
89mm
17.5 x 66.5 x 89mm
Screw
RS PRO Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS PRO Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail
Add to parts list
RS Stock No.: 223-7792Brand: RS PRO

54.638 OMR

54.638 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
154.638 OMR
Add to basket
RS Pro
-
Phase
-
-
3
-
-
-
SPDT
-
Overvoltage Protection, Undervoltage Protection
-
-
DIN Rail
-
-
-
-
-
-
-
-
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66.5mm
-
-
90mm
-20°C
-
-
-
-
-
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-
-20 → +60°C
+60°C
-
17.5 x 90 x 66.5mm
Screw
RS PRO Phase Monitoring Relay, 3 Phase, SPDT, Phase Loss, Voltage Assemmetry, DIN Rail
RS PRO Phase Monitoring Relay, 3 Phase, SPDT, Phase Loss, Voltage Assemmetry, DIN Rail
Add to parts list
RS Stock No.: 223-7795Brand: RS PRO

62.520 OMR

62.520 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
162.520 OMR
Add to basket
RS Pro
-
Phase
-
-
3
-
-
Phase Loss, Voltage Assemmetry
SPDT
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
66.5mm
-
-
90mm
-20°C
-
-
-
-
-
-
-
-20 → +60°C
+60°C
-
17.5 x 90 x 66.5mm
Screw

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