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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, 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

12.837 OMR

12.837 OMR Each (ex VAT)

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1

Available in multiples of 1
112.837 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

11.867 OMR

11.867 OMR Each (ex VAT)

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1

Available in multiples of 1
111.867 OMR
Add to basket
RS Pro
Liquid Level
Single
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
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RS Stock No.: 122-217Brand: RS PRO

5.735 OMR

5.735 OMR Each (ex VAT)

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1

Available in multiples of 1
15.735 OMR
Add to basket
RS Pro
Phase
Three
150 → 260V ac
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-
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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.: 132-172Brand: RS PRO

7.773 OMR

7.773 OMR Each (ex VAT)

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1

Available in multiples of 1
17.773 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
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RS Stock No.: 132-173Brand: RS PRO

9.737 OMR

9.737 OMR Each (ex VAT)

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1

Available in multiples of 1
19.737 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.: 122-216Brand: RS PRO

7.831 OMR

7.831 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
17.831 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
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RS Stock No.: 122-210Brand: RS PRO

8.940 OMR

8.940 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
18.940 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.: 122-215Brand: RS PRO

11.943 OMR

11.943 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
111.943 OMR
Add to basket
RS Pro
Voltage
Single
220V ac
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-
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-
DIN Rail
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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

10.499 OMR

10.499 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
110.499 OMR
Add to basket
RS Pro
Voltage
Three
380V ac
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-
-
-
DIN Rail
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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

60.695 OMR

60.695 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
160.695 OMR
Add to basket
RS Pro
Phase
3
Phase Loss, Voltage Assemmetry
SPDT
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DIN Rail
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17.5 x 90 x 66.5mm
-20°C
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-20 → +60°C
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66.5mm
90mm
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+60°C
Screw
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RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
Add to parts list
RS Stock No.: 223-7789Brand: RS PRO

69.560 OMR

69.560 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
169.560 OMR
Add to basket
RS Pro
Voltage
3
-
DPDT
-
Overvoltage Protection, Undervoltage Protection
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DIN Rail
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2 → 999s
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36 x 90 x 67mm
-10°C
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-10 → +60°C
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66.21mm
36mm
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+60°C
Screw
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RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
Add to parts list
RS Stock No.: 223-7790Brand: RS PRO

74.474 OMR

74.474 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
174.474 OMR
Add to basket
RS Pro
Voltage
3
-
DPDT
-
Overvoltage Protection, Undervoltage Protection
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DIN Rail
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2 → 999s
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36 x 90 x 67mm
-10°C
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90mm
-10 → +60°C
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66.21mm
36mm
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+60°C
Screw
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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.: 223-7788Brand: RS PRO

64.645 OMR

64.645 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
164.645 OMR
Add to basket
RS Pro
Phase, Voltage
3
-
SPDT
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Overvoltage Protection, Undervoltage Protection
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DIN Rail
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Phase Loss, Phase Sequence, Phase Asymmetry
2 → 999s
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36 x 90 x 67mm
-10°C
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-
-10 → +60°C
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65Hz
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45Hz
66.21mm
36mm
-
+60°C
Screw
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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.: 223-7791Brand: RS PRO

61.781 OMR

61.781 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
161.781 OMR
Add to basket
RS Pro
Phase
3
-
SPDT
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
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17.5 x 90 x 66.5mm
-20°C
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-
-20 → +60°C
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66.5mm
90mm
-
+60°C
Screw
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RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 243 → 540 V, DIN Rail, Surface Mount
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, 243 → 540 V, DIN Rail, Surface Mount
Add to parts list
RS Stock No.: 225-7388Brand: RS PRO

62.838 OMR

62.838 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
162.838 OMR
Add to basket
RS Pro
Phase, Voltage
3
243 → 540 V
DPDT
-
Undervoltage
-
DIN Rail, Surface Mount
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Phase Failure, Phase Sequence
0.2 → 10s
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89 x 17.5 x 66.5mm
-20°C
-
66.5mm
-20 → +60°C
-
243 V
540V
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89mm
17.5mm
-
+60°C
Screw
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Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
RS PRO Phase Monitoring Relay, 3 Phase, DIN Rail, Surface Mount
RS PRO Phase Monitoring Relay, 3 Phase, DIN Rail, Surface Mount
Add to parts list
RS Stock No.: 225-7384Brand: RS PRO

31.849 OMR

31.849 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
131.849 OMR
Add to basket
RS Pro
Phase
3
-
-
-
-
-
DIN Rail, Surface Mount
-
-
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-
Phase Failure, Phase Sequence
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-20°C
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-20 → +60°C
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66.5mm
17.5mm
-
+60°C
Screw
-
3 LEDs for Phase presence status, Sequence Status,
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
Add to parts list
RS Stock No.: 225-7387Brand: RS PRO

63.329 OMR

63.329 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
163.329 OMR
Add to basket
RS Pro
Phase, Voltage
3
-
DPDT
-
Overvoltage, Undervoltage
-
DIN Rail
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-
-
-
Phase Failure, Phase Sequence
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17.5mm
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Screw
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RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
Add to parts list
RS Stock No.: 225-7386Brand: RS PRO

56.994 OMR

56.994 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
156.994 OMR
Add to basket
RS Pro
Voltage
3
-
DPDT
-
Overvoltage, Undervoltage
-
DIN Rail
-
-
-
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17.5mm
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-
Screw
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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

33.691 OMR

33.691 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
133.691 OMR
Add to basket
RS Pro
Voltage
1
12 → 24V dc
SPDT
-
Undervoltage
-
DIN Rail
-
-
-
-
-
0 → 30s
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L
-
17.5 x 66.5 x 89mm
-20°C
-
89mm
+60°C
-
12V dc
24V dc
-
-
-
66.5mm
17.5mm
1
+60°C
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

36.758 OMR

36.758 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
136.758 OMR
Add to basket
RS Pro
Phase, Voltage
3
-
SPDT
-
Undervoltage
-
DIN Rail
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
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L
-
17.5 x 66.5 x 89mm
-20°C
-
89mm
+60°C
-
-
-
-
-
-
66.5mm
17.5mm
1
+60°C
Screw
-
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

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