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

14.950 OMR

14.950 OMR Each (ex VAT)

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1

Available in multiples of 1
114.950 OMR
Add to basket
RS Pro
Current
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Single
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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

13.877 OMR

13.877 OMR Each (ex VAT)

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1

Available in multiples of 1
113.877 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
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RS Stock No.: 122-217Brand: RS PRO

6.744 OMR

6.744 OMR Each (ex VAT)

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1

Available in multiples of 1
16.744 OMR
Add to basket
RS Pro
Phase
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Three
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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

9.261 OMR

9.261 OMR Each (ex VAT)

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1

Available in multiples of 1
19.261 OMR
Add to basket
RS Pro
Phase
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Three
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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

9.199 OMR

9.199 OMR Each (ex VAT)

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1

Available in multiples of 1
19.199 OMR
Add to basket
RS Pro
Phase
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Three
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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

11.515 OMR

11.515 OMR Each (ex VAT)

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1

Available in multiples of 1
111.515 OMR
Add to basket
RS Pro
Phase
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Three
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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

14.115 OMR

14.115 OMR Each (ex VAT)

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1

Available in multiples of 1
114.115 OMR
Add to basket
RS Pro
Voltage
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Single
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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

10.561 OMR

10.561 OMR Each (ex VAT)

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1

Available in multiples of 1
110.561 OMR
Add to basket
RS Pro
Voltage
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Single
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220V ac
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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

12.419 OMR

12.419 OMR Each (ex VAT)

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1

Available in multiples of 1
112.419 OMR
Add to basket
RS Pro
Voltage
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Three
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380V ac
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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

39.846 OMR

39.846 OMR Each (ex VAT)

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1

Available in multiples of 1
139.846 OMR
Add to basket
RS Pro
Voltage
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1
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SPDT
12 → 24V dc
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Undervoltage
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DIN Rail
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0 → 30s
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L
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+60°C
17.5 x 66.5 x 89mm
24V dc
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12V dc
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-20°C
+60°C
1
66.5mm
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.: 102-6136Brand: RS PRO

43.470 OMR

43.470 OMR Each (ex VAT)

Check stock

1

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

62.727 OMR

62.727 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
162.727 OMR
Add to basket
RS Pro
Phase
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3
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SPDT
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Overvoltage Protection, Undervoltage Protection
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DIN Rail
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+60°C
17.5 x 90 x 66.5mm
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-20°C
-20 → +60°C
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66.5mm
Screw
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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

71.775 OMR

71.775 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
171.775 OMR
Add to basket
RS Pro
Phase
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3
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SPDT
Phase Loss, Voltage Assemmetry
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DIN Rail
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+60°C
17.5 x 90 x 66.5mm
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-20°C
-20 → +60°C
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66.5mm
Screw
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RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, Maximum of 280 V, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, Maximum of 280 V, DIN Rail
Add to parts list
RS Stock No.: 102-6135Brand: RS PRO

41.511 OMR

41.511 OMR Each (ex VAT)

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1

Available in multiples of 1
141.511 OMR
Add to basket
RS Pro
Phase, Voltage
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3
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SPDT
Maximum of 280 V
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Undervoltage
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DIN Rail
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Phase Failure, Phase Sequence
100ms
48 → 63Hz
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L
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+60°C
17.5 x 66.5 x 89mm
280V
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-20°C
+60°C
1
66.5mm
Screw
2 LEDs for the Indication of Operational States, Detects Incorrect Phase Sequence & Phase Loss, Fixed Time Delay, Fixed Undervoltage Trip Level, 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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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

82.261 OMR

82.261 OMR Each (ex VAT)

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1

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

88.075 OMR

88.075 OMR Each (ex VAT)

Check stock

1

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

76.441 OMR

76.441 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
176.441 OMR
Add to basket
RS Pro
Phase, Voltage
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3
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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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45Hz
+60°C
36 x 90 x 67mm
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65Hz
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-10°C
-10 → +60°C
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66.21mm
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

73.056 OMR

73.056 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
173.056 OMR
Add to basket
RS Pro
Phase
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3
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SPDT
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Overvoltage Protection, Undervoltage Protection
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DIN Rail
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+60°C
17.5 x 90 x 66.5mm
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-20°C
-20 → +60°C
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66.5mm
Screw
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RS PRO Voltage Monitoring Relay, 1 Phase, SPDT, Maximum of 500 V, DIN Rail
RS PRO Voltage Monitoring Relay, 1 Phase, SPDT, Maximum of 500 V, DIN Rail
Add to parts list
RS Stock No.: 102-6133Brand: RS PRO

76.522 OMR

76.522 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
176.522 OMR
Add to basket
RS Pro
Voltage
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1
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SPDT
Maximum of 500 V
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Overvoltage, Undervoltage
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DIN Rail
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0.1 → 30s
48 → 63Hz
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L
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+60°C
17.5 x 66.5 x 89mm
500V
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-20°C
+60°C
1
66.5mm
Screw
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RS PRO Current Monitoring Relay, 1 Phase, SPDT, DIN Rail
RS PRO Current Monitoring Relay, 1 Phase, SPDT, DIN Rail
Add to parts list
RS Stock No.: 102-6134Brand: RS PRO

76.522 OMR

76.522 OMR Each (ex VAT)

Check stock

1

Available in multiples of 1
176.522 OMR
Add to basket
RS Pro
Current
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1
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SPDT
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DIN Rail
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1A
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10A
Overcurrent, Undercurrent
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0.1 → 30s
48 → 63Hz
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L
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+60°C
66.5 x 17.5 x 89mm
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1 → 10A
-20°C
+60°C
1
66.5mm
Screw
Green LED Indication for Supply Status
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