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

AED 133.75

AED 133.75 Each (ex VAT)

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1

Available in multiples of 1
1AED 133.75
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RS Pro
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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 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

AED 271.94

AED 271.94 Each (ex VAT)

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1

Available in multiples of 1
1AED 271.94
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RS Pro
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Current
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Three
1NO/1NC
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DIN Rail Mount
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40A
100A
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0.1 → 20s
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75mm
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40 → 100A
55°C
-20 to 55°C
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44 x 84.5 x 75mm
Error Delay Time Adjustable
CE
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84.5mm
-20°C
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

AED 124.15

AED 124.15 Each (ex VAT)

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1

Available in multiples of 1
1AED 124.15
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RS Pro
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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

AED 60.33

AED 60.33 Each (ex VAT)

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1

Available in multiples of 1
1AED 60.33
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RS Pro
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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

AED 82.86

AED 82.86 Each (ex VAT)

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1

Available in multiples of 1
1AED 82.86
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RS Pro
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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
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RS Stock No.: 132-172Brand: RS PRO

AED 82.30

AED 82.30 Each (ex VAT)

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1

Available in multiples of 1
1AED 82.30
Add to basket
RS Pro
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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

AED 103.03

AED 103.03 Each (ex VAT)

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1

Available in multiples of 1
1AED 103.03
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RS Pro
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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, 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

AED 237.85

AED 237.85 Each (ex VAT)

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1

Available in multiples of 1
1AED 237.85
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RS Pro
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Voltage
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1
CO
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150 → 300V ac
Overvoltage, Undervoltage
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DIN Rail
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
Screw
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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

AED 235.99

AED 235.99 Each (ex VAT)

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1

Available in multiples of 1
1AED 235.99
Add to basket
RS Pro
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Voltage
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1
CO
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150 → 300V ac
Overvoltage, Undervoltage
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DIN Rail
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
Screw
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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.: 558-892Brand: RS PRO

AED 202.35

AED 202.35 Each (ex VAT)

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1

Available in multiples of 1
1AED 202.35
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RS Pro
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Voltage
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3
CO
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Voltage Asymmetry
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DIN Rail
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
Screw
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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

AED 171.95

AED 171.95 Each (ex VAT)

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1

Available in multiples of 1
1AED 171.95
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RS Pro
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Voltage
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3
CO
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Voltage Asymmetry
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DIN Rail
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
Screw
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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
Add to parts list
RS Stock No.: 434-521Brand: RS PRO

AED 240.88

AED 240.88 Each (ex VAT)

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1

Available in multiples of 1
1AED 240.88
Add to basket
RS Pro
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Voltage
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Single
1NO
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120 → 300V ac
Overvoltage
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DIN Rail Mount
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0.1 → 600s
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90.3mm
300V
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120V
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55°C
-20 to 55°C
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52.9 x 67.5 x 90.3mm
Built-In Current Transformer, Built-In Contactor
CE
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67.5mm
-20°C
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

AED 94.49

AED 94.49 Each (ex VAT)

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1

Available in multiples of 1
1AED 94.49
Add to basket
RS Pro
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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.: 122-215Brand: RS PRO

AED 126.28

AED 126.28 Each (ex VAT)

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1

Available in multiples of 1
1AED 126.28
Add to basket
RS Pro
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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, 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
Add to parts list
RS Stock No.: 434-520Brand: RS PRO

AED 191.61

AED 191.61 Each (ex VAT)

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1

Available in multiples of 1
1AED 191.61
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RS Pro
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Voltage
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Three
1NO/1NC
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230 → 460V ac
Overvoltage
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DIN Rail or Panel
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Phase Loss
0.1 → 10s
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75mm
460V
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230V
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55°C
-20 to 55°C
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44 x 84.5 x 75mm
Phase Sequence Control, With PTC, Non-Neutral
CE
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84.5mm
-20°C
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

AED 111.11

AED 111.11 Each (ex VAT)

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1

Available in multiples of 1
1AED 111.11
Add to basket
RS Pro
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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

AED 356.49

AED 356.49 Each (ex VAT)

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1

Available in multiples of 1
1AED 356.49
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RS Pro
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Voltage
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1
SPDT
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12 → 24V dc
Undervoltage
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DIN Rail
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0 → 30s
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L
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89mm
24V dc
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12V dc
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+60°C
+60°C
1
17.5 x 66.5 x 89mm
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Screw
17.5mm
-20°C
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

AED 388.90

AED 388.90 Each (ex VAT)

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1

Available in multiples of 1
1AED 388.90
Add to basket
RS Pro
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Phase, Voltage
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3
SPDT
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Undervoltage
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DIN Rail
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Phase Failure, Phase Sequence
0.2 → 10s
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48 → 63Hz
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L
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89mm
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+60°C
+60°C
1
17.5 x 66.5 x 89mm
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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Screw
17.5mm
-20°C
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

AED 561.18

AED 561.18 Each (ex VAT)

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1

Available in multiples of 1
1AED 561.18
Add to basket
RS Pro
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Phase
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3
SPDT
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Overvoltage Protection, Undervoltage Protection
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DIN Rail
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+60°C
-20 → +60°C
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17.5 x 90 x 66.5mm
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Screw
90mm
-20°C
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

AED 642.14

AED 642.14 Each (ex VAT)

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1

Available in multiples of 1
1AED 642.14
Add to basket
RS Pro
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Phase
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3
SPDT
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Phase Loss, Voltage Assemmetry
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DIN Rail
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+60°C
-20 → +60°C
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17.5 x 90 x 66.5mm
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Screw
90mm
-20°C

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