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 1153 products
RS Stock No.: 223-7795Brand: RS PRO
EGP 10,012.09
Each (ex VAT)
Check stock
1
RS Pro
Phase
3
SPDT
Phase Loss, Voltage Assemmetry
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
66.5mm
90mm
-20°C
-
Screw
17.5 x 90 x 66.5mm
-
-
-
-
-
-
+60°C
-20 → +60°C
RS Stock No.: 223-7789Brand: RS PRO
EGP 11,520.23
Each (ex VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
2 → 999s
-
-
-
-
-
-
-
-
66.21mm
36mm
-10°C
-
Screw
36 x 90 x 67mm
-
-
-
-
-
-
+60°C
-10 → +60°C
RS Stock No.: 223-7790Brand: RS PRO
EGP 12,340.18
Each (ex VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
2 → 999s
-
-
-
-
-
90mm
-
-
66.21mm
36mm
-10°C
-
Screw
36 x 90 x 67mm
-
-
-
-
-
-
+60°C
-10 → +60°C
RS Stock No.: 223-7788Brand: RS PRO
EGP 10,709.59
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
-
-
-
-
-
-
-
45Hz
66.21mm
36mm
-10°C
-
Screw
36 x 90 x 67mm
-
-
65Hz
-
-
-
+60°C
-10 → +60°C
RS Stock No.: 223-7791Brand: RS PRO
EGP 10,193.42
Each (ex VAT)
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
66.5mm
90mm
-20°C
-
Screw
17.5 x 90 x 66.5mm
-
-
-
-
-
-
+60°C
-20 → +60°C
RS Stock No.: 225-7388Brand: RS PRO
EGP 10,341.02
Each (ex 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
-
-
-
-
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
66.5mm
-
-
89mm
17.5mm
-20°C
-
Screw
89 x 17.5 x 66.5mm
-
540V
-
-
243 V
-
+60°C
-20 → +60°C
RS Stock No.: 225-7384Brand: RS PRO
EGP 5,244.24
Each (ex VAT)
Check stock
1
RS Pro
Phase
3
-
-
-
-
DIN Rail, Surface Mount
-
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
-
-
3 LEDs for Phase presence status, Sequence Status,
-
-
-
66.5mm
17.5mm
-20°C
-
Screw
-
-
-
-
-
-
-
+60°C
-20 → +60°C
RS Stock No.: 225-7387Brand: RS PRO
EGP 10,443.37
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
EGP 9,389.88
Each (ex VAT)
Check stock
1
RS Stock No.: 223-7794Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
66.5mm
90mm
-20°C
-
Screw
17.5 x 90 x 66.5mm
-
-
-
-
-
-
+60°C
-20 → +60°C
RS Stock No.: 223-7792Brand: RS PRO
P.O.A.
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
66.5mm
90mm
-20°C
-
Screw
17.5 x 90 x 66.5mm
-
-
-
-
-
-
+60°C
-20 → +60°C
RS Stock No.: 102-6130Brand: RS PRO
EGP 5,581.75
Each (ex VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
12 → 24V dc
-
Undervoltage
DIN Rail
-
-
-
-
-
-
0 → 30s
-
-
-
L
-
89mm
1
-
66.5mm
17.5mm
-20°C
-
Screw
17.5 x 66.5 x 89mm
-
24V dc
-
-
12V dc
-
+60°C
+60°C
RS Stock No.: 102-6136Brand: RS PRO
EGP 6,086.09
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
89mm
1
-
66.5mm
17.5mm
-20°C
-
Screw
17.5 x 66.5 x 89mm
-
-
-
-
-
-
+60°C
+60°C
RS Stock No.: 102-6135Brand: RS PRO
EGP 5,819.57
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
89mm
1
-
66.5mm
17.5mm
-20°C
-
Screw
17.5 x 66.5 x 89mm
-
280V
-
-
-
-
+60°C
+60°C
RS Stock No.: 102-6133Brand: RS PRO
EGP 10,646.73
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
-
89mm
1
-
66.5mm
17.5mm
-20°C
-
Screw
17.5 x 66.5 x 89mm
-
500V
-
-
-
-
+60°C
+60°C
RS Stock No.: 102-6134Brand: RS PRO
EGP 10,646.73
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
89mm
1
-
66.5mm
17.5mm
-20°C
1 → 10A
Screw
66.5 x 17.5 x 89mm
-
-
-
-
-
-
+60°C
+60°C
RS Stock No.: 102-6137Brand: RS PRO
EGP 7,839.44
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
89mm
1
-
66.5mm
17.5mm
-20°C
-
Screw
17.5 x 66.5 x 89mm
-
-
-
-
-
-
+60°C
+60°C
RS Stock No.: 102-6131Brand: RS PRO
EGP 6,062.27
Each (ex VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
-
-
Overvoltage, Undervoltage
DIN Rail
-
-
-
-
-
-
0.2 → 10s
48 → 63Hz
-
-
L
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
89mm
1
63Hz
66.5mm
17.5mm
-20°C
-
Screw
17.5 x 66.5 x 89mm
-
-
48Hz
-
-
-
+60°C
+60°C
EGP 1,304.18
Each (ex VAT)
Check stock
1
EGP 1,305.51
Each (ex VAT)
Check stock
1
...