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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€ 49.36

€ 49.36 Each (Exc. VAT)

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RS Pro
Current
Single
150 → 260V ac
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DIN Rail
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€ 45.35

€ 45.35 Each (Exc. VAT)

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RS Pro
Liquid Level
Single
150 → 260V ac
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DIN Rail
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€ 22.36

€ 22.36 Each (Exc. VAT)

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RS Pro
Phase
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 Stock No.: 122-216Brand: RS PRO

€ 30.73

€ 30.73 Each (Exc. VAT)

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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 Stock No.: 132-172Brand: RS PRO

€ 30.50

€ 30.50 Each (Exc. VAT)

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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 Stock No.: 132-173Brand: RS PRO

€ 38.16

€ 38.16 Each (Exc. VAT)

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RS Pro
Phase
Three
380V ac
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DIN Rail
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€ 46.80

€ 46.80 Each (Exc. VAT)

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RS Pro
Voltage
Single
220V ac
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DIN Rail
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€ 35.05

€ 35.05 Each (Exc. VAT)

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RS Pro
Voltage
Single
220V ac
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DIN Rail
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€ 41.18

€ 41.18 Each (Exc. VAT)

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RS Pro
Voltage
Three
380V ac
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DIN Rail
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€ 132.10

€ 132.10 Each (Exc. VAT)

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RS Pro
Voltage
1
12 → 24V dc
SPDT
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Undervoltage
DIN Rail
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0 → 30s
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L
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-20°C
+60°C
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66.5mm
89mm
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12V dc
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24V dc
17.5mm
17.5 x 66.5 x 89mm
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1
Screw
+60°C
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RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS Stock No.: 102-6136Brand: RS PRO

€ 144.11

€ 144.11 Each (Exc. VAT)

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RS Pro
Phase, Voltage
3
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SPDT
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Undervoltage
DIN Rail
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Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
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L
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-20°C
+60°C
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
66.5mm
89mm
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17.5mm
17.5 x 66.5 x 89mm
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1
Screw
+60°C
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€ 237.97

€ 237.97 Each (Exc. VAT)

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RS Pro
Phase
3
Phase Loss, Voltage Assemmetry
SPDT
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DIN Rail
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-20°C
+60°C
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66.5mm
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90mm
17.5 x 90 x 66.5mm
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Screw
-20 → +60°C
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€ 137.64

€ 137.64 Each (Exc. VAT)

Add to basket
RS Pro
Phase, Voltage
3
Maximum of 280 V
SPDT
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Undervoltage
DIN Rail
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Phase Failure, Phase Sequence
100ms
48 → 63Hz
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L
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-20°C
+60°C
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
66.5mm
89mm
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280V
17.5mm
17.5 x 66.5 x 89mm
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1
Screw
+60°C
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RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
RS Stock No.: 223-7789Brand: RS PRO

€ 272.71

€ 272.71 Each (Exc. VAT)

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RS Pro
Voltage
3
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DPDT
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Overvoltage Protection, Undervoltage Protection
DIN Rail
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2 → 999s
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-10°C
+60°C
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66.21mm
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36mm
36 x 90 x 67mm
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Screw
-10 → +60°C
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RS PRO Voltage Monitoring Relay, 3 Phase, DPDT, DIN Rail
RS Stock No.: 223-7790Brand: RS PRO

€ 291.98

€ 291.98 Each (Exc. VAT)

Add to basket
RS Pro
Voltage
3
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DPDT
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Overvoltage Protection, Undervoltage Protection
DIN Rail
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2 → 999s
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-10°C
+60°C
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66.21mm
90mm
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36mm
36 x 90 x 67mm
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Screw
-10 → +60°C
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RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS Stock No.: 223-7788Brand: RS PRO

€ 253.44

€ 253.44 Each (Exc. VAT)

Add to basket
RS Pro
Phase, Voltage
3
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SPDT
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Overvoltage Protection, Undervoltage Protection
DIN Rail
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Phase Loss, Phase Sequence, Phase Asymmetry
2 → 999s
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-10°C
+60°C
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66.21mm
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65Hz
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36mm
36 x 90 x 67mm
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45Hz
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Screw
-10 → +60°C
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RS PRO Phase Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS Stock No.: 223-7791Brand: RS PRO

€ 242.21

€ 242.21 Each (Exc. VAT)

Add to basket
RS Pro
Phase
3
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SPDT
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Overvoltage Protection, Undervoltage Protection
DIN Rail
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-20°C
+60°C
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66.5mm
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90mm
17.5 x 90 x 66.5mm
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Screw
-20 → +60°C
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€ 253.70

€ 253.70 Each (Exc. VAT)

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

€ 253.70

€ 253.70 Each (Exc. VAT)

Add to basket
RS Pro
Current
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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-20°C
+60°C
Green LED Indication for Supply Status
66.5mm
89mm
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17.5mm
66.5 x 17.5 x 89mm
1 → 10A
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1
Screw
+60°C
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RS PRO Phase, Voltage Monitoring Relay, 3 Phase, SPDT, DIN Rail
RS Stock No.: 102-6137Brand: RS PRO

€ 186.22

€ 186.22 Each (Exc. VAT)

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