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 1156 products
RS Stock No.: 223-7795Brand: RS PRO
€ 186.29
€ 186.29 Each (ex VAT)
Check stock
1
RS Pro
Phase
3
Phase Loss, Voltage Assemmetry
SPDT
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
17.5 x 90 x 66.5mm
-
-
-20°C
90mm
-
-
+60°C
-20 → +60°C
-
Screw
-
66.5mm
-
-
-
-
-
RS Stock No.: 223-7789Brand: RS PRO
€ 213.51
€ 213.51 Each (ex VAT)
Check stock
1
RS Pro
Voltage
3
-
DPDT
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
2 → 999s
-
-
-
-
36 x 90 x 67mm
-
-
-10°C
36mm
-
-
+60°C
-10 → +60°C
-
Screw
-
66.21mm
-
-
-
-
-
RS Stock No.: 223-7790Brand: RS PRO
€ 228.59
€ 228.59 Each (ex VAT)
Check stock
1
RS Pro
Voltage
3
-
DPDT
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
2 → 999s
-
-
-
-
36 x 90 x 67mm
-
90mm
-10°C
36mm
-
-
+60°C
-10 → +60°C
-
Screw
-
66.21mm
-
-
-
-
-
RS Stock No.: 223-7788Brand: RS PRO
€ 198.38
€ 198.38 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
-
-
-
-
36 x 90 x 67mm
-
-
-10°C
36mm
-
-
+60°C
-10 → +60°C
45Hz
Screw
-
66.21mm
-
-
-
-
65Hz
RS Stock No.: 223-7791Brand: RS PRO
€ 189.60
€ 189.60 Each (ex VAT)
Check stock
1
RS Pro
Phase
3
-
SPDT
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
17.5 x 90 x 66.5mm
-
-
-20°C
90mm
-
-
+60°C
-20 → +60°C
-
Screw
-
66.5mm
-
-
-
-
-
RS Stock No.: 225-7388Brand: RS PRO
€ 192.86
€ 192.86 Each (ex VAT)
Check stock
1
RS Pro
Phase, Voltage
3
243 → 540 V
DPDT
-
Undervoltage
DIN Rail, Surface Mount
-
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
-
-
-
-
89 x 17.5 x 66.5mm
-
66.5mm
-20°C
17.5mm
-
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
+60°C
-20 → +60°C
-
Screw
-
89mm
-
-
243 V
540V
-
RS Stock No.: 225-7384Brand: RS PRO
€ 97.76
€ 97.76 Each (ex VAT)
Check stock
1
RS Pro
Phase
3
-
-
-
-
DIN Rail, Surface Mount
-
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
-
-
-
-
-
-20°C
17.5mm
-
3 LEDs for Phase presence status, Sequence Status,
+60°C
-20 → +60°C
-
Screw
-
66.5mm
-
-
-
-
-
RS Stock No.: 225-7387Brand: RS PRO
€ 194.36
€ 194.36 Each (ex VAT)
Check stock
1
RS Pro
Phase, Voltage
3
-
DPDT
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
-
-
-
-
-
-
17.5mm
-
-
-
-
-
Screw
-
-
-
-
-
-
-
RS Stock No.: 225-7386Brand: RS PRO
€ 174.93
€ 174.93 Each (ex VAT)
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
€ 103.42
€ 103.42 Each (ex VAT)
Check stock
1
RS Pro
Voltage
1
12 → 24V dc
SPDT
-
Undervoltage
DIN Rail
-
-
-
-
-
-
0 → 30s
-
-
-
L
17.5 x 66.5 x 89mm
-
89mm
-20°C
17.5mm
-
-
+60°C
+60°C
-
Screw
1
66.5mm
-
-
12V dc
24V dc
-
RS Stock No.: 102-6136Brand: RS PRO
€ 112.81
€ 112.81 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
17.5 x 66.5 x 89mm
-
89mm
-20°C
17.5mm
-
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
+60°C
-
Screw
1
66.5mm
-
-
-
-
-
RS Stock No.: 102-6135Brand: RS PRO
€ 107.74
€ 107.74 Each (ex VAT)
Check stock
1
RS Pro
Phase, Voltage
3
Maximum of 280 V
SPDT
-
Undervoltage
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
100ms
48 → 63Hz
-
-
L
17.5 x 66.5 x 89mm
-
89mm
-20°C
17.5mm
-
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
+60°C
-
Screw
1
66.5mm
-
-
-
280V
-
RS Stock No.: 102-6133Brand: RS PRO
€ 198.60
€ 198.60 Each (ex VAT)
Check stock
1
RS Pro
Voltage
1
Maximum of 500 V
SPDT
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
-
0.1 → 30s
48 → 63Hz
-
-
L
17.5 x 66.5 x 89mm
-
89mm
-20°C
17.5mm
-
-
+60°C
+60°C
-
Screw
1
66.5mm
-
-
-
500V
-
RS Stock No.: 102-6134Brand: RS PRO
€ 198.60
€ 198.60 Each (ex VAT)
Check stock
1
RS Pro
Current
1
-
SPDT
-
-
DIN Rail
-
1A
-
10A
Overcurrent, Undercurrent
-
0.1 → 30s
48 → 63Hz
-
-
L
66.5 x 17.5 x 89mm
1 → 10A
89mm
-20°C
17.5mm
-
Green LED Indication for Supply Status
+60°C
+60°C
-
Screw
1
66.5mm
-
-
-
-
-
RS Stock No.: 102-6137Brand: RS PRO
€ 145.78
€ 145.78 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
17.5 x 66.5 x 89mm
-
89mm
-20°C
17.5mm
-
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
+60°C
-
Screw
1
66.5mm
-
-
-
-
-
RS Stock No.: 102-6131Brand: RS PRO
€ 112.36
€ 112.36 Each (ex VAT)
Check stock
1
RS Pro
Voltage
1
-
SPDT
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
-
0.2 → 10s
48 → 63Hz
-
-
L
17.5 x 66.5 x 89mm
-
89mm
-20°C
17.5mm
-
2 LEDs for the Indication of Operational States, Adjustment for Time Delay, Adjustment for Undervoltage Trip Level, Microprocessor Based Relay, Monitors Own Supply & Detects if The Supply Exceeds The Set Under or Over Voltage Trip Levels, True RMS Monitoring
+60°C
+60°C
63Hz
Screw
1
66.5mm
-
-
-
-
48Hz
€ 63.17
€ 63.17 Each (ex VAT)
Check stock
1
€ 66.65
€ 66.65 Each (ex VAT)
Check stock
1
€ 83.90
€ 83.90 Each (ex VAT)
Check stock
1
€ 70.94
€ 70.94 Each (ex VAT)
Check stock
1
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