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 1252 products
RS Stock No.: 132-174Brand: RS PRO
€ 29.28
€ 29.28 Each (Exc. Vat)
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1
RS Stock No.: 132-171Brand: RS PRO
€ 26.86
€ 26.86 Each (Exc. Vat)
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1
RS Stock No.: 122-217Brand: RS PRO
€ 13.31
€ 13.31 Each (Exc. Vat)
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1
RS Stock No.: 122-216Brand: RS PRO
€ 18.27
€ 18.27 Each (Exc. Vat)
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1
RS Stock No.: 132-172Brand: RS PRO
€ 18.15
€ 18.15 Each (Exc. Vat)
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1
RS Stock No.: 132-173Brand: RS PRO
€ 22.63
€ 22.63 Each (Exc. Vat)
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1
RS Stock No.: 122-215Brand: RS PRO
€ 27.83
€ 27.83 Each (Exc. Vat)
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1
RS Stock No.: 122-210Brand: RS PRO
€ 20.81
€ 20.81 Each (Exc. Vat)
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1
RS Stock No.: 122-212Brand: RS PRO
€ 24.44
€ 24.44 Each (Exc. Vat)
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1
RS Stock No.: 102-6130Brand: RS PRO
€ 78.65
€ 78.65 Each (Exc. Vat)
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1
RS Pro
Voltage
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1
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12 → 24V dc
SPDT
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Undervoltage
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DIN Rail
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-
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-
0 → 30s
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L
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-20°C
17.5mm
89mm
17.5 x 66.5 x 89mm
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24V dc
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12V dc
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-
+60°C
1
Screw
66.5mm
RS Stock No.: 102-6136Brand: RS PRO
€ 85.30
€ 85.30 Each (Exc. Vat)
Check stock
1
RS Pro
Phase, Voltage
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-
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3
-
-
-
SPDT
-
Undervoltage
-
DIN Rail
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-
-
-
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-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
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L
-
-20°C
17.5mm
89mm
17.5 x 66.5 x 89mm
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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
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+60°C
1
Screw
66.5mm
RS Stock No.: 223-7792Brand: RS PRO
€ 123.42
€ 123.42 Each (Exc. Vat)
Check stock
1
RS Pro
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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-20°C
90mm
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17.5 x 90 x 66.5mm
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-
-20 → +60°C
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Screw
66.5mm
RS Stock No.: 223-7795Brand: RS PRO
€ 141.57
€ 141.57 Each (Exc. Vat)
Check stock
1
RS Pro
Phase
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3
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-
Phase Loss, Voltage Assemmetry
SPDT
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-
DIN Rail
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-20°C
90mm
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17.5 x 90 x 66.5mm
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-
-20 → +60°C
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Screw
66.5mm
RS Stock No.: 102-6135Brand: RS PRO
€ 81.68
€ 81.68 Each (Exc. Vat)
Check stock
1
RS Pro
Phase, Voltage
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3
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Maximum of 280 V
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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-20°C
17.5mm
89mm
17.5 x 66.5 x 89mm
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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
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280V
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-
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+60°C
1
Screw
66.5mm
RS Stock No.: 223-7789Brand: RS PRO
€ 162.14
€ 162.14 Each (Exc. Vat)
Check stock
1
RS Pro
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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-10°C
36mm
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36 x 90 x 67mm
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-
-10 → +60°C
-
Screw
66.21mm
RS Stock No.: 223-7790Brand: RS PRO
€ 173.03
€ 173.03 Each (Exc. Vat)
Check stock
1
RS Pro
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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-10°C
36mm
90mm
36 x 90 x 67mm
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-
-
-
-10 → +60°C
-
Screw
66.21mm
RS Stock No.: 223-7788Brand: RS PRO
€ 150.04
€ 150.04 Each (Exc. Vat)
Check stock
1
RS Pro
Phase, Voltage
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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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Phase Loss, Phase Sequence, Phase Asymmetry
2 → 999s
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-10°C
36mm
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36 x 90 x 67mm
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65Hz
-10 → +60°C
-
Screw
66.21mm
RS Stock No.: 223-7791Brand: RS PRO
€ 143.99
€ 143.99 Each (Exc. Vat)
Check stock
1
RS Pro
Phase
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3
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-
SPDT
-
Overvoltage Protection, Undervoltage Protection
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DIN Rail
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-20°C
90mm
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17.5 x 90 x 66.5mm
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-
-
-20 → +60°C
-
Screw
66.5mm
RS Stock No.: 102-6133Brand: RS PRO
€ 150.04
€ 150.04 Each (Exc. Vat)
Check stock
1
RS Pro
Voltage
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-
1
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Maximum of 500 V
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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-20°C
17.5mm
89mm
17.5 x 66.5 x 89mm
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500V
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-
-
-
+60°C
1
Screw
66.5mm
RS Stock No.: 102-6134Brand: RS PRO
€ 150.04
€ 150.04 Each (Exc. Vat)
Check stock
1
RS Pro
Current
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1
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SPDT
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DIN Rail
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1A
10A
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Overcurrent, Undercurrent
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-
0.1 → 30s
48 → 63Hz
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L
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-20°C
17.5mm
89mm
66.5 x 17.5 x 89mm
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Green LED Indication for Supply Status
1 → 10A
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+60°C
1
Screw
66.5mm
...