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...
Showing 1-20 of 1220 products
RS Stock No.: 132-174Brand: RS PRO
€ 23.56
€ 23.56 Each (Exc. VAT)
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1
RS Stock No.: 132-171Brand: RS PRO
€ 21.64
€ 21.64 Each (Exc. VAT)
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1
RS Stock No.: 122-217Brand: RS PRO
€ 10.68
€ 10.68 Each (Exc. VAT)
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1
RS Stock No.: 122-216Brand: RS PRO
€ 14.66
€ 14.66 Each (Exc. VAT)
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1
RS Stock No.: 132-172Brand: RS PRO
€ 14.55
€ 14.55 Each (Exc. VAT)
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1
RS Stock No.: 132-173Brand: RS PRO
€ 18.22
€ 18.22 Each (Exc. VAT)
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1
RS Stock No.: 122-210Brand: RS PRO
€ 16.72
€ 16.72 Each (Exc. VAT)
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1
RS Stock No.: 122-215Brand: RS PRO
€ 22.34
€ 22.34 Each (Exc. VAT)
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1
RS Stock No.: 122-212Brand: RS PRO
€ 19.65
€ 19.65 Each (Exc. VAT)
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1
RS Stock No.: 102-6130Brand: RS PRO
€ 63.05
€ 63.05 Each (Exc. VAT)
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1
RS Pro
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Voltage
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1
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12 → 24V dc
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SPDT
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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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66.5mm
1
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24V dc
12V dc
89mm
-20°C
17.5mm
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-
17.5 x 66.5 x 89mm
Screw
+60°C
-
+60°C
RS Stock No.: 102-6136Brand: RS PRO
€ 68.78
€ 68.78 Each (Exc. VAT)
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1
RS Pro
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Phase, Voltage
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3
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-
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SPDT
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Undervoltage
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DIN Rail
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-
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Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
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L
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66.5mm
1
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-
89mm
-20°C
17.5mm
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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
17.5 x 66.5 x 89mm
Screw
+60°C
-
+60°C
RS Stock No.: 223-7795Brand: RS PRO
€ 113.59
€ 113.59 Each (Exc. VAT)
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1
RS Pro
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Phase
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3
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Phase Loss, Voltage Assemmetry
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SPDT
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DIN Rail
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66.5mm
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-20°C
90mm
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17.5 x 90 x 66.5mm
Screw
-20 → +60°C
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+60°C
RS Stock No.: 102-6135Brand: RS PRO
€ 65.69
€ 65.69 Each (Exc. VAT)
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1
RS Pro
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Phase, Voltage
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3
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Maximum of 280 V
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SPDT
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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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66.5mm
1
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280V
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89mm
-20°C
17.5mm
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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
17.5 x 66.5 x 89mm
Screw
+60°C
-
+60°C
RS Stock No.: 223-7789Brand: RS PRO
€ 130.17
€ 130.17 Each (Exc. VAT)
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1
RS Pro
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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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66.21mm
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-10°C
36mm
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36 x 90 x 67mm
Screw
-10 → +60°C
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+60°C
RS Stock No.: 223-7790Brand: RS PRO
€ 139.37
€ 139.37 Each (Exc. VAT)
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1
RS Pro
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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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66.21mm
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90mm
-10°C
36mm
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36 x 90 x 67mm
Screw
-10 → +60°C
-
+60°C
RS Stock No.: 223-7788Brand: RS PRO
€ 120.96
€ 120.96 Each (Exc. VAT)
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1
RS Pro
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Phase, Voltage
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3
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-
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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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66.21mm
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65Hz
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-10°C
36mm
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36 x 90 x 67mm
Screw
-10 → +60°C
45Hz
+60°C
RS Stock No.: 223-7791Brand: RS PRO
€ 115.61
€ 115.61 Each (Exc. VAT)
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1
RS Pro
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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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66.5mm
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-20°C
90mm
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17.5 x 90 x 66.5mm
Screw
-20 → +60°C
-
+60°C
RS Stock No.: 102-6133Brand: RS PRO
€ 121.09
€ 121.09 Each (Exc. VAT)
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1
RS Pro
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Voltage
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1
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Maximum of 500 V
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SPDT
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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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66.5mm
1
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500V
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89mm
-20°C
17.5mm
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-
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17.5 x 66.5 x 89mm
Screw
+60°C
-
+60°C
RS Stock No.: 102-6134Brand: RS PRO
€ 121.09
€ 121.09 Each (Exc. VAT)
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1
RS Pro
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Current
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1
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SPDT
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DIN Rail
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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1 → 10A
66.5mm
1
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89mm
-20°C
17.5mm
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Green LED Indication for Supply Status
66.5 x 17.5 x 89mm
Screw
+60°C
-
+60°C
RS Stock No.: 102-6137Brand: RS PRO
€ 88.88
€ 88.88 Each (Exc. VAT)
Check stock
1
RS Pro
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-
Phase, Voltage
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3
-
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SPDT
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Overvoltage, 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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66.5mm
1
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89mm
-20°C
17.5mm
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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
17.5 x 66.5 x 89mm
Screw
+60°C
-
+60°C
...