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 1146 products
RS Stock No.: 223-7794Brand: RS PRO
€ 103.72
Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-20°C
66.5mm
+60°C
-
-20 → +60°C
-
-
-
90mm
17.5 x 90 x 66.5mm
-
Screw
-
-
-
-
-
-
RS Stock No.: 223-7792Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-20°C
66.5mm
+60°C
-
-20 → +60°C
-
-
-
90mm
17.5 x 90 x 66.5mm
-
Screw
-
-
-
-
-
-
RS Stock No.: 223-7795Brand: RS PRO
€ 115.22
Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
Phase Loss, Voltage Assemmetry
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-20°C
66.5mm
+60°C
-
-20 → +60°C
-
-
-
90mm
17.5 x 90 x 66.5mm
-
Screw
-
-
-
-
-
-
RS Stock No.: 223-7789Brand: RS PRO
€ 132.05
Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
2 → 999s
-
-
-
-
-10°C
66.21mm
+60°C
-
-10 → +60°C
-
-
-
36mm
36 x 90 x 67mm
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Screw
-
-
-
-
-
-
RS Stock No.: 223-7790Brand: RS PRO
€ 141.38
Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
2 → 999s
-
-
-
-
-10°C
66.21mm
+60°C
-
-10 → +60°C
-
90mm
-
36mm
36 x 90 x 67mm
-
Screw
-
-
-
-
-
-
RS Stock No.: 223-7788Brand: RS PRO
€ 122.71
Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
Phase Loss, Phase Sequence, Phase Asymmetry
2 → 999s
-
-
-
-
-10°C
66.21mm
+60°C
-
-10 → +60°C
-
-
-
36mm
36 x 90 x 67mm
45Hz
Screw
-
65Hz
-
-
-
-
RS Stock No.: 223-7791Brand: RS PRO
€ 117.27
Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-20°C
66.5mm
+60°C
-
-20 → +60°C
-
-
-
90mm
17.5 x 90 x 66.5mm
-
Screw
-
-
-
-
-
-
RS Stock No.: 225-7388Brand: RS PRO
€ 119.29
Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
DPDT
243 → 540 V
-
Undervoltage
DIN Rail, Surface Mount
-
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
-
-
-
-
-20°C
89mm
+60°C
-
-20 → +60°C
-
66.5mm
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
17.5mm
89 x 17.5 x 66.5mm
-
Screw
540V
-
-
243 V
-
-
RS Stock No.: 225-7384Brand: RS PRO
€ 60.46
Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
-
-
-
-
DIN Rail, Surface Mount
-
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
-
-
-20°C
66.5mm
+60°C
-
-20 → +60°C
-
-
3 LEDs for Phase presence status, Sequence Status,
17.5mm
-
-
Screw
-
-
-
-
-
-
RS Stock No.: 225-7387Brand: RS PRO
€ 120.22
Each (Exc. 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
€ 108.19
Each (Exc. VAT)
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
€ 63.96
Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
12 → 24V dc
-
Undervoltage
DIN Rail
-
-
-
-
-
-
0 → 30s
-
-
-
L
-20°C
66.5mm
+60°C
-
+60°C
-
89mm
-
17.5mm
17.5 x 66.5 x 89mm
-
Screw
24V dc
-
-
12V dc
-
1
RS Stock No.: 102-6136Brand: RS PRO
€ 69.77
Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
SPDT
-
-
Undervoltage
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
-
-
L
-20°C
66.5mm
+60°C
-
+60°C
-
89mm
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
17.5mm
17.5 x 66.5 x 89mm
-
Screw
-
-
-
-
-
1
RS Stock No.: 102-6135Brand: RS PRO
€ 66.64
Each (Exc. 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
-20°C
66.5mm
+60°C
-
+60°C
-
89mm
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
17.5mm
17.5 x 66.5 x 89mm
-
Screw
280V
-
-
-
-
1
RS Stock No.: 102-6133Brand: RS PRO
€ 122.83
Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
Maximum of 500 V
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
-
0.1 → 30s
48 → 63Hz
-
-
L
-20°C
66.5mm
+60°C
-
+60°C
-
89mm
-
17.5mm
17.5 x 66.5 x 89mm
-
Screw
500V
-
-
-
-
1
RS Stock No.: 102-6134Brand: RS PRO
€ 122.83
Each (Exc. VAT)
Check stock
1
RS Pro
Current
1
SPDT
-
-
-
DIN Rail
-
1A
-
10A
Overcurrent, Undercurrent
-
0.1 → 30s
48 → 63Hz
-
-
L
-20°C
66.5mm
+60°C
-
+60°C
1 → 10A
89mm
Green LED Indication for Supply Status
17.5mm
66.5 x 17.5 x 89mm
-
Screw
-
-
-
-
-
1
RS Stock No.: 102-6137Brand: RS PRO
€ 90.17
Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
SPDT
-
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
-
-
L
-20°C
66.5mm
+60°C
-
+60°C
-
89mm
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
17.5mm
17.5 x 66.5 x 89mm
-
Screw
-
-
-
-
-
1
RS Stock No.: 102-6131Brand: RS PRO
€ 69.50
Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
-
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
-
0.2 → 10s
48 → 63Hz
-
-
L
-20°C
66.5mm
+60°C
-
+60°C
-
89mm
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
17.5mm
17.5 x 66.5 x 89mm
63Hz
Screw
-
48Hz
-
-
-
1
€ 41.22
Each (Exc. VAT)
Check stock
1
€ 44.91
Each (Exc. VAT)
Check stock
1
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