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 1274 products
RS Stock No.: 434-506Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Current
-
Three
-
-
1NO/1NC
-
-
-
-
-
DIN Rail Mount
40A
100A
-
-
-
0.1 → 20s
-
-
-
-
55°C
-20°C
-20 to 55°C
-
84.5mm
-
-
-
-
-
75mm
CE
-
Error Delay Time Adjustable
-
40 → 100A
44 x 84.5 x 75mm
44mm
RS Stock No.: 558-898Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Voltage
-
1
-
-
CO
150 → 300V ac
-
Overvoltage, Undervoltage
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
-
-
Screw
-
-
-
RS Stock No.: 558-901Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Voltage
-
1
-
-
CO
150 → 300V ac
-
Overvoltage, Undervoltage
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
-
-
Screw
-
-
-
RS Stock No.: 558-892Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Voltage
-
3
-
-
CO
-
-
Voltage Asymmetry
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
-
-
Screw
-
-
-
RS Stock No.: 558-897Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Voltage
-
3
-
-
CO
-
-
Voltage Asymmetry
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CE, cULus, DEKRA, IEC, IQNet, ISO EN 9000
-
-
Screw
-
-
-
RS Stock No.: 434-521Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Voltage
-
Single
-
-
1NO
120 → 300V ac
-
Overvoltage
-
-
DIN Rail Mount
-
-
-
-
-
0.1 → 600s
-
-
-
-
55°C
-20°C
-20 to 55°C
-
67.5mm
-
120V
-
-
300V
90.3mm
CE
-
Built-In Current Transformer, Built-In Contactor
-
-
52.9 x 67.5 x 90.3mm
52.9mm
RS Stock No.: 434-520Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
-
-
Voltage
-
Three
-
-
1NO/1NC
230 → 460V ac
-
Overvoltage
-
-
DIN Rail or Panel
-
-
-
-
Phase Loss
0.1 → 10s
-
-
-
-
55°C
-20°C
-20 to 55°C
-
84.5mm
-
230V
-
-
460V
75mm
CE
-
Phase Sequence Control, With PTC, Non-Neutral
-
-
44 x 84.5 x 75mm
44mm
RS Stock No.: 132-174Brand: RS PRO
EGP 2,113.05
EGP 2,113.05 Each (ex VAT)
Check stock
1
RS Stock No.: 132-171Brand: RS PRO
EGP 1,941.19
EGP 1,941.19 Each (ex VAT)
Check stock
1
RS Stock No.: 122-217Brand: RS PRO
EGP 1,049.50
EGP 1,049.50 Each (ex VAT)
Check stock
1
RS Stock No.: 132-172Brand: RS PRO
EGP 1,402.68
EGP 1,402.68 Each (ex VAT)
Check stock
1
RS Stock No.: 132-173Brand: RS PRO
EGP 1,771.84
EGP 1,771.84 Each (ex VAT)
Check stock
1
RS Stock No.: 122-216Brand: RS PRO
EGP 1,413.33
EGP 1,413.33 Each (ex VAT)
Check stock
1
RS Stock No.: 122-215Brand: RS PRO
EGP 2,118.82
EGP 2,118.82 Each (ex VAT)
Check stock
1
RS Stock No.: 122-210Brand: RS PRO
EGP 1,614.62
EGP 1,614.62 Each (ex VAT)
Check stock
1
RS Stock No.: 122-212Brand: RS PRO
EGP 1,896.23
EGP 1,896.23 Each (ex VAT)
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
EGP 5,746.36
EGP 5,746.36 Each (ex VAT)
Check stock
1
RS Pro
-
-
Voltage
-
1
-
-
SPDT
12 → 24V dc
-
Undervoltage
-
-
DIN Rail
-
-
-
-
-
0 → 30s
-
-
-
L
+60°C
-20°C
+60°C
1
17.5mm
-
12V dc
-
-
24V dc
89mm
-
-
-
Screw
-
17.5 x 66.5 x 89mm
66.5mm
RS Stock No.: 102-6136Brand: RS PRO
EGP 6,266.23
EGP 6,266.23 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
+60°C
-20°C
+60°C
1
17.5mm
-
-
-
-
-
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
Screw
-
17.5 x 66.5 x 89mm
66.5mm
RS Stock No.: 223-7795Brand: RS PRO
EGP 10,309.22
EGP 10,309.22 Each (ex VAT)
Check stock
1
RS Pro
-
-
Phase
-
3
-
-
SPDT
Phase Loss, Voltage Assemmetry
-
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
+60°C
-20°C
-20 → +60°C
-
90mm
-
-
-
-
-
-
-
-
-
Screw
-
17.5 x 90 x 66.5mm
66.5mm
RS Stock No.: 102-6135Brand: RS PRO
EGP 5,991.43
EGP 5,991.43 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
+60°C
-20°C
+60°C
1
17.5mm
-
-
-
-
280V
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
Screw
-
17.5 x 66.5 x 89mm
66.5mm
...