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
€ 218.18
€ 218.18 Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
Phase Loss, Voltage Assemmetry
-
-
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
17.5 x 90 x 66.5mm
66.5mm
-
Screw
+60°C
-20°C
-
-20 → +60°C
-
-
90mm
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-
-
-
-
-
RS Stock No.: 223-7789Brand: RS PRO
€ 250.04
€ 250.04 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
2 → 999s
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-
-
-
-
36 x 90 x 67mm
66.21mm
-
Screw
+60°C
-10°C
-
-10 → +60°C
-
-
36mm
-
-
-
-
-
-
RS Stock No.: 223-7790Brand: RS PRO
€ 267.71
€ 267.71 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
2 → 999s
-
-
-
-
-
36 x 90 x 67mm
66.21mm
-
Screw
+60°C
-10°C
-
-10 → +60°C
-
-
36mm
90mm
-
-
-
-
-
RS Stock No.: 223-7788Brand: RS PRO
€ 232.33
€ 232.33 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
-
-
-
-
-
36 x 90 x 67mm
66.21mm
45Hz
Screw
+60°C
-10°C
-
-10 → +60°C
-
-
36mm
-
-
65Hz
-
-
-
RS Stock No.: 223-7791Brand: RS PRO
€ 222.04
€ 222.04 Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
-
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
17.5 x 90 x 66.5mm
66.5mm
-
Screw
+60°C
-20°C
-
-20 → +60°C
-
-
90mm
-
-
-
-
-
-
RS Stock No.: 225-7388Brand: RS PRO
€ 225.86
€ 225.86 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
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-
-
-
-
89 x 17.5 x 66.5mm
89mm
-
Screw
+60°C
-20°C
-
-20 → +60°C
-
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
17.5mm
66.5mm
540V
-
-
243 V
-
RS Stock No.: 225-7384Brand: RS PRO
€ 114.48
€ 114.48 Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
-
-
-
-
-
DIN Rail, Surface Mount
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
-
-
-
-
66.5mm
-
Screw
+60°C
-20°C
-
-20 → +60°C
-
3 LEDs for Phase presence status, Sequence Status,
17.5mm
-
-
-
-
-
-
RS Stock No.: 225-7387Brand: RS PRO
€ 227.62
€ 227.62 Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
DPDT
-
-
Overvoltage, Undervoltage
-
DIN Rail
-
-
-
-
Phase Failure, Phase Sequence
-
-
-
-
-
-
-
-
-
Screw
-
-
-
-
-
-
17.5mm
-
-
-
-
-
-
RS Stock No.: 225-7386Brand: RS PRO
€ 204.86
€ 204.86 Each (Exc. VAT)
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
€ 121.12
€ 121.12 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
12 → 24V dc
-
Undervoltage
-
DIN Rail
-
-
-
-
-
0 → 30s
-
-
-
L
-
17.5 x 66.5 x 89mm
66.5mm
-
Screw
+60°C
-20°C
1
+60°C
-
-
17.5mm
89mm
24V dc
-
-
12V dc
-
RS Stock No.: 102-6136Brand: RS PRO
€ 132.11
€ 132.11 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
-
17.5 x 66.5 x 89mm
66.5mm
-
Screw
+60°C
-20°C
1
+60°C
-
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
89mm
-
-
-
-
-
RS Stock No.: 102-6135Brand: RS PRO
€ 126.18
€ 126.18 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
-
17.5 x 66.5 x 89mm
66.5mm
-
Screw
+60°C
-20°C
1
+60°C
-
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
89mm
280V
-
-
-
-
RS Stock No.: 102-6133Brand: RS PRO
€ 232.58
€ 232.58 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
-
17.5 x 66.5 x 89mm
66.5mm
-
Screw
+60°C
-20°C
1
+60°C
-
-
17.5mm
89mm
500V
-
-
-
-
RS Stock No.: 102-6134Brand: RS PRO
€ 232.58
€ 232.58 Each (Exc. VAT)
Check stock
1
RS Pro
Current
1
SPDT
-
-
-
-
DIN Rail
1A
10A
-
Overcurrent, Undercurrent
-
0.1 → 30s
48 → 63Hz
-
-
L
1 → 10A
66.5 x 17.5 x 89mm
66.5mm
-
Screw
+60°C
-20°C
1
+60°C
-
Green LED Indication for Supply Status
17.5mm
89mm
-
-
-
-
-
RS Stock No.: 102-6137Brand: RS PRO
€ 170.72
€ 170.72 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
-
17.5 x 66.5 x 89mm
66.5mm
-
Screw
+60°C
-20°C
1
+60°C
-
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
89mm
-
-
-
-
-
RS Stock No.: 102-6131Brand: RS PRO
€ 131.58
€ 131.58 Each (Exc. 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
66.5mm
63Hz
Screw
+60°C
-20°C
1
+60°C
-
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
89mm
-
48Hz
-
-
-
€ 97.66
€ 97.66 Each (Exc. VAT)
Check stock
1
€ 78.06
€ 78.06 Each (Exc. VAT)
Check stock
1
€ 79.04
€ 79.04 Each (Exc. VAT)
Check stock
1
€ 73.97
€ 73.97 Each (Exc. VAT)
Check stock
1
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