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
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Current
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Three
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-
1NO/1NC
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-
-
-
-
DIN Rail Mount
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40A
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100A
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-
0.1 → 20s
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-
-
-
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40 → 100A
-
-20°C
75mm
-
-
-
-
-20 to 55°C
84.5mm
-
44mm
CE
Error Delay Time Adjustable
55°C
-
-
44 x 84.5 x 75mm
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
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Voltage
-
Single
-
-
1NO
-
120 → 300V ac
-
Overvoltage
-
DIN Rail Mount
-
-
-
-
-
-
0.1 → 600s
-
-
-
-
-
-
-
-20°C
90.3mm
300V
120V
-
-
-20 to 55°C
67.5mm
-
52.9mm
CE
Built-In Current Transformer, Built-In Contactor
55°C
-
-
52.9 x 67.5 x 90.3mm
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
-
-
-
-
-
Phase Loss
0.1 → 10s
-
-
-
-
-
-
-
-20°C
75mm
460V
230V
-
-
-20 to 55°C
84.5mm
-
44mm
CE
Phase Sequence Control, With PTC, Non-Neutral
55°C
-
-
44 x 84.5 x 75mm
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
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Current
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Single
-
-
-
-
150 → 260V ac
-
-
-
DIN Rail
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-
-
-
-
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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
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Liquid Level
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Single
-
-
-
-
150 → 260V ac
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-
-
DIN Rail
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-
-
-
-
-
-
-
-
-
-
-
-
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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
-
Three
-
-
-
-
150 → 260V ac
-
-
-
DIN Rail
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-
-
-
-
-
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-
-
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-
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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
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RS Pro
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Phase
-
Three
-
-
-
-
380V ac
-
-
-
DIN Rail
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-
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-
-
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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
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Phase
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Three
-
-
-
-
380V ac
-
-
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DIN Rail
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-
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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
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RS Pro
-
Phase
-
Three
-
-
-
-
380V ac
-
-
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DIN Rail
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-
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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
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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
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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
-
-
-
DIN Rail
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-
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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 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
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Undervoltage
-
DIN Rail
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-
-
-
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0 → 30s
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-
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L
-
-
-
-20°C
89mm
24V dc
12V dc
-
-
+60°C
17.5mm
-
66.5mm
-
-
+60°C
1
Screw
17.5 x 66.5 x 89mm
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
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RS Stock No.: 102-6136Brand: RS PRO

AED 344.97

AED 344.97 Each (ex VAT)

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1

Available in multiples of 1
1AED 344.97
Add to basket
RS Pro
-
Phase, Voltage
-
3
-
-
SPDT
-
-
-
Undervoltage
-
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
-
-
L
-
-
-
-20°C
89mm
-
-
-
-
+60°C
17.5mm
-
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
+60°C
1
Screw
17.5 x 66.5 x 89mm
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
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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
-
3
-
-
SPDT
-
Phase Loss, Voltage Assemmetry
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-20°C
-
-
-
-
-
-20 → +60°C
90mm
-
66.5mm
-
-
+60°C
-
Screw
17.5 x 90 x 66.5mm
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
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RS Stock No.: 102-6135Brand: RS PRO

AED 329.48

AED 329.48 Each (ex VAT)

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1

Available in multiples of 1
1AED 329.48
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RS Pro
-
Phase, Voltage
-
3
-
-
SPDT
-
Maximum of 280 V
-
Undervoltage
-
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
100ms
48 → 63Hz
-
-
L
-
-
-
-20°C
89mm
280V
-
-
-
+60°C
17.5mm
-
66.5mm
-
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
+60°C
1
Screw
17.5 x 66.5 x 89mm
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

AED 652.85

AED 652.85 Each (ex VAT)

Check stock

1

Available in multiples of 1
1AED 652.85
Add to basket
RS Pro
-
Voltage
-
3
-
-
DPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
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2 → 999s
-
-
-
-
-
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-10°C
-
-
-
-
-
-10 → +60°C
36mm
-
66.21mm
-
-
+60°C
-
Screw
36 x 90 x 67mm
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

AED 698.98

AED 698.98 Each (ex VAT)

Check stock

1

Available in multiples of 1
1AED 698.98
Add to basket
RS Pro
-
Voltage
-
3
-
-
DPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
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-
-
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2 → 999s
-
-
-
-
-
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-
-10°C
90mm
-
-
-
-
-10 → +60°C
36mm
-
66.21mm
-
-
+60°C
-
Screw
36 x 90 x 67mm
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

AED 606.65

AED 606.65 Each (ex VAT)

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1

Available in multiples of 1
1AED 606.65
Add to basket
RS Pro
-
Phase, Voltage
-
3
-
-
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
Phase Loss, Phase Sequence, Phase Asymmetry
2 → 999s
-
-
-
-
-
-
-
-10°C
-
-
-
65Hz
-
-10 → +60°C
36mm
45Hz
66.21mm
-
-
+60°C
-
Screw
36 x 90 x 67mm
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

AED 579.81

AED 579.81 Each (ex VAT)

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1

Available in multiples of 1
1AED 579.81
Add to basket
RS Pro
-
Phase
-
3
-
-
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-20°C
-
-
-
-
-
-20 → +60°C
90mm
-
66.5mm
-
-
+60°C
-
Screw
17.5 x 90 x 66.5mm

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