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 1246 products
RS Stock No.: 132-174Brand: RS PRO
€ 23.72
€ 23.72 Each (ex VAT)
Check stock
1
RS Stock No.: 132-171Brand: RS PRO
€ 21.80
€ 21.80 Each (ex VAT)
Check stock
1
RS Stock No.: 122-217Brand: RS PRO
€ 10.75
€ 10.75 Each (ex VAT)
Check stock
1
RS Stock No.: 122-216Brand: RS PRO
€ 14.77
€ 14.77 Each (ex VAT)
Check stock
1
RS Stock No.: 132-172Brand: RS PRO
€ 14.66
€ 14.66 Each (ex VAT)
Check stock
1
RS Stock No.: 132-173Brand: RS PRO
€ 18.36
€ 18.36 Each (ex VAT)
Check stock
1
RS Stock No.: 122-210Brand: RS PRO
€ 16.84
€ 16.84 Each (ex VAT)
Check stock
1
RS Stock No.: 122-215Brand: RS PRO
€ 22.50
€ 22.50 Each (ex VAT)
Check stock
1
RS Stock No.: 122-212Brand: RS PRO
€ 19.80
€ 19.80 Each (ex VAT)
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
€ 63.51
€ 63.51 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Voltage
1
-
SPDT
-
12 → 24V dc
-
Undervoltage
-
-
DIN Rail
-
-
-
-
-
-
-
0 → 30s
-
-
-
-
-
-
-
L
-
-
-
-
-
Screw
+60°C
1
66.5mm
-
24V dc
-
12V dc
-
-
+60°C
-20°C
17.5 x 66.5 x 89mm
-
RS Stock No.: 102-6136Brand: RS PRO
€ 69.28
€ 69.28 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Phase, Voltage
3
-
SPDT
-
-
-
Undervoltage
-
-
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
-
0.2 → 10s
48 → 63Hz
-
-
-
-
-
-
L
-
-
-
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
-
Screw
+60°C
1
66.5mm
-
-
-
-
-
-
+60°C
-20°C
17.5 x 66.5 x 89mm
-
RS Stock No.: 223-7795Brand: RS PRO
€ 114.40
€ 114.40 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Phase
3
-
SPDT
-
Phase Loss, Voltage Assemmetry
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
-20 → +60°C
-
66.5mm
-
-
-
-
-
-
+60°C
-20°C
17.5 x 90 x 66.5mm
-
RS Stock No.: 102-6135Brand: RS PRO
€ 66.17
€ 66.17 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Phase, Voltage
3
-
SPDT
-
Maximum of 280 V
-
Undervoltage
-
-
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
-
100ms
48 → 63Hz
-
-
-
-
-
-
L
-
-
-
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
-
Screw
+60°C
1
66.5mm
-
280V
-
-
-
-
+60°C
-20°C
17.5 x 66.5 x 89mm
-
RS Stock No.: 223-7790Brand: RS PRO
€ 140.38
€ 140.38 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Voltage
3
-
DPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
-
DIN Rail
-
-
-
-
-
-
-
2 → 999s
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
-10 → +60°C
-
66.21mm
-
-
-
-
-
-
+60°C
-10°C
36 x 90 x 67mm
-
RS Stock No.: 223-7789Brand: RS PRO
€ 131.11
€ 131.11 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Voltage
3
-
DPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
-
DIN Rail
-
-
-
-
-
-
-
2 → 999s
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
-10 → +60°C
-
66.21mm
-
-
-
-
-
-
+60°C
-10°C
36 x 90 x 67mm
-
RS Stock No.: 223-7788Brand: RS PRO
€ 121.83
€ 121.83 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Phase, Voltage
3
-
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
-
DIN Rail
-
-
-
-
-
Phase Loss, Phase Sequence, Phase Asymmetry
-
2 → 999s
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
-10 → +60°C
-
66.21mm
-
-
-
-
-
65Hz
+60°C
-10°C
36 x 90 x 67mm
45Hz
RS Stock No.: 223-7791Brand: RS PRO
€ 116.44
€ 116.44 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Phase
3
-
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Screw
-20 → +60°C
-
66.5mm
-
-
-
-
-
-
+60°C
-20°C
17.5 x 90 x 66.5mm
-
RS Stock No.: 102-6133Brand: RS PRO
€ 121.96
€ 121.96 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Voltage
1
-
SPDT
-
Maximum of 500 V
-
Overvoltage, Undervoltage
-
-
DIN Rail
-
-
-
-
-
-
-
0.1 → 30s
48 → 63Hz
-
-
-
-
-
-
L
-
-
-
-
-
Screw
+60°C
1
66.5mm
-
500V
-
-
-
-
+60°C
-20°C
17.5 x 66.5 x 89mm
-
RS Stock No.: 102-6134Brand: RS PRO
€ 121.96
€ 121.96 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Current
1
-
SPDT
-
-
-
-
-
-
DIN Rail
-
1A
-
10A
Overcurrent, Undercurrent
-
-
0.1 → 30s
48 → 63Hz
-
-
-
-
-
-
L
-
-
-
Green LED Indication for Supply Status
-
Screw
+60°C
1
66.5mm
1 → 10A
-
-
-
-
-
+60°C
-20°C
66.5 x 17.5 x 89mm
-
RS Stock No.: 102-6137Brand: RS PRO
€ 89.52
€ 89.52 Each (ex VAT)
Check stock
1
RS Pro
-
-
-
Phase, Voltage
3
-
SPDT
-
-
-
Overvoltage, Undervoltage
-
-
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
-
0.2 → 10s
48 → 63Hz
-
-
-
-
-
-
L
-
-
-
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
-
Screw
+60°C
1
66.5mm
-
-
-
-
-
-
+60°C
-20°C
17.5 x 66.5 x 89mm
-
...