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

AED 235.71

AED 235.71 Each (ex VAT)

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1

Available in multiples of 1
1AED 235.71
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RS Pro
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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-
-
-
-20°C
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Error Delay Time Adjustable
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-
-
-
-
40 → 100A
44 x 84.5 x 75mm
84.5mm
-
55°C
-
75mm
CE
-20 to 55°C
44mm
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 211.02

AED 211.02 Each (ex VAT)

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1

Available in multiples of 1
1AED 211.02
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RS Pro
Voltage
-
-
-
1
-
-
CO
150 → 300V ac
Overvoltage, Undervoltage
-
-
-
DIN Rail
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-
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Screw
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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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 209.37

AED 209.37 Each (ex VAT)

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1

Available in multiples of 1
1AED 209.37
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RS Pro
Voltage
-
-
-
1
-
-
CO
150 → 300V ac
Overvoltage, Undervoltage
-
-
-
DIN Rail
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-
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-
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-
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Screw
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
-
-
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

AED 179.49

AED 179.49 Each (ex VAT)

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1

Available in multiples of 1
1AED 179.49
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RS Pro
Voltage
-
-
-
3
-
-
CO
-
Voltage Asymmetry
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-
-
DIN Rail
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Screw
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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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
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RS Stock No.: 558-897Brand: RS PRO

AED 152.59

AED 152.59 Each (ex VAT)

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1

Available in multiples of 1
1AED 152.59
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RS Pro
Voltage
-
-
-
3
-
-
CO
-
Voltage Asymmetry
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-
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DIN Rail
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Screw
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CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
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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
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RS Stock No.: 434-521Brand: RS PRO

AED 213.72

AED 213.72 Each (ex VAT)

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1

Available in multiples of 1
1AED 213.72
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RS Pro
Voltage
-
-
-
Single
-
-
1NO
120 → 300V ac
Overvoltage
-
-
-
DIN Rail Mount
-
-
-
-
-
0.1 → 600s
-
-
-
-
-20°C
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Built-In Current Transformer, Built-In Contactor
300V
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-
120V
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-
52.9 x 67.5 x 90.3mm
67.5mm
-
55°C
-
90.3mm
CE
-20 to 55°C
52.9mm
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

AED 170.01

AED 170.01 Each (ex VAT)

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1

Available in multiples of 1
1AED 170.01
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RS Pro
Voltage
-
-
-
Three
-
-
1NO/1NC
230 → 460V ac
Overvoltage
-
-
-
DIN Rail or Panel
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-
Phase Loss
0.1 → 10s
-
-
-
-
-20°C
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Phase Sequence Control, With PTC, Non-Neutral
460V
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-
230V
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-
44 x 84.5 x 75mm
84.5mm
-
55°C
-
75mm
CE
-20 to 55°C
44mm
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 118.14

AED 118.14 Each (ex VAT)

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1

Available in multiples of 1
1AED 118.14
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RS Pro
Current
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-
-
Single
-
-
-
150 → 260V ac
-
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-
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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

AED 108.54

AED 108.54 Each (ex VAT)

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1

Available in multiples of 1
1AED 108.54
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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

AED 53.53

AED 53.53 Each (ex VAT)

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1

Available in multiples of 1
1AED 53.53
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RS Pro
Phase
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-
-
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.: 132-172Brand: RS PRO

AED 72.99

AED 72.99 Each (ex VAT)

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1

Available in multiples of 1
1AED 72.99
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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
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RS Stock No.: 132-173Brand: RS PRO

AED 91.39

AED 91.39 Each (ex VAT)

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1

Available in multiples of 1
1AED 91.39
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
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RS Stock No.: 122-216Brand: RS PRO

AED 73.54

AED 73.54 Each (ex VAT)

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1

Available in multiples of 1
1AED 73.54
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
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RS Stock No.: 122-215Brand: RS PRO

AED 112.07

AED 112.07 Each (ex VAT)

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1

Available in multiples of 1
1AED 112.07
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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
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RS Stock No.: 122-210Brand: RS PRO

AED 83.84

AED 83.84 Each (ex VAT)

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1

Available in multiples of 1
1AED 83.84
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RS Pro
Voltage
-
-
-
Single
-
-
-
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

AED 98.56

AED 98.56 Each (ex VAT)

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1

Available in multiples of 1
1AED 98.56
Add to basket
RS Pro
Voltage
-
-
-
Three
-
-
-
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
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RS Stock No.: 102-6130Brand: RS PRO

AED 316.20

AED 316.20 Each (ex VAT)

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1

Available in multiples of 1
1AED 316.20
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RS Pro
Voltage
-
-
-
1
-
-
SPDT
12 → 24V dc
Undervoltage
-
-
-
DIN Rail
-
-
-
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0 → 30s
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L
-20°C
1
-
24V dc
-
-
12V dc
-
-
17.5 x 66.5 x 89mm
17.5mm
-
+60°C
Screw
89mm
-
+60°C
66.5mm
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 344.97

AED 344.97 Each (ex VAT)

Check stock

1

Available in multiples of 1
1AED 344.97
Add to basket
RS Pro
Phase, Voltage
-
-
-
3
-
-
SPDT
-
Undervoltage
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-
-
DIN Rail
-
-
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Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
-
-
L
-20°C
1
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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-
17.5 x 66.5 x 89mm
17.5mm
-
+60°C
Screw
89mm
-
+60°C
66.5mm
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 497.84

AED 497.84 Each (ex VAT)

Check stock

1

Available in multiples of 1
1AED 497.84
Add to basket
RS Pro
Phase
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-
-
3
-
-
SPDT
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Overvoltage Protection, Undervoltage Protection
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-
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DIN Rail
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-20°C
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17.5 x 90 x 66.5mm
90mm
-
+60°C
Screw
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-
-20 → +60°C
66.5mm
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 569.67

AED 569.67 Each (ex VAT)

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1

Available in multiples of 1
1AED 569.67
Add to basket
RS Pro
Phase
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-
-
3
-
-
SPDT
Phase Loss, Voltage Assemmetry
-
-
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DIN Rail
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-20°C
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17.5 x 90 x 66.5mm
90mm
-
+60°C
Screw
-
-
-20 → +60°C
66.5mm

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