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 1162 products
RS Stock No.: 223-7795Brand: RS PRO
€ 231.04
€ 231.04 Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
Phase Loss, Voltage Assemmetry
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-
DIN Rail
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-
-
-
-
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-20 → +60°C
90mm
-20°C
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-
66.5mm
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-
-
Screw
17.5 x 90 x 66.5mm
+60°C
-
RS Stock No.: 223-7790Brand: RS PRO
€ 283.49
€ 283.49 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
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-
-
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-
2 → 999s
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-10 → +60°C
36mm
-10°C
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66.21mm
90mm
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-
Screw
36 x 90 x 67mm
+60°C
-
RS Stock No.: 223-7789Brand: RS PRO
€ 264.78
€ 264.78 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
3
DPDT
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
-
-
-
-
-
2 → 999s
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-10 → +60°C
36mm
-10°C
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-
66.21mm
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-
-
Screw
36 x 90 x 67mm
+60°C
-
RS Stock No.: 223-7788Brand: RS PRO
€ 246.04
€ 246.04 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
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-10 → +60°C
36mm
-10°C
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-
65Hz
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66.21mm
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-
45Hz
Screw
36 x 90 x 67mm
+60°C
-
RS Stock No.: 223-7791Brand: RS PRO
€ 235.14
€ 235.14 Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
SPDT
-
Overvoltage Protection, Undervoltage Protection
-
-
DIN Rail
-
-
-
-
-
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-
-
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-
-20 → +60°C
90mm
-20°C
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-
66.5mm
-
-
-
Screw
17.5 x 90 x 66.5mm
+60°C
-
RS Stock No.: 225-7388Brand: RS PRO
€ 239.20
€ 239.20 Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
DPDT
243 → 540 V
Undervoltage
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-
DIN Rail, Surface Mount
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-
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-
Phase Failure, Phase Sequence
0.2 → 10s
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Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Under Voltage Trip Level, Adjustment For Time Delay
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-20 → +60°C
17.5mm
-20°C
-
243 V
540V
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-
89mm
66.5mm
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-
Screw
89 x 17.5 x 66.5mm
+60°C
-
RS Stock No.: 225-7384Brand: RS PRO
€ 121.23
€ 121.23 Each (Exc. VAT)
Check stock
1
RS Pro
Phase
3
-
-
-
-
-
DIN Rail, Surface Mount
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-
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-
Phase Failure, Phase Sequence
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3 LEDs for Phase presence status, Sequence Status,
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-20 → +60°C
17.5mm
-20°C
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66.5mm
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-
Screw
-
+60°C
-
RS Stock No.: 225-7387Brand: RS PRO
€ 241.05
€ 241.05 Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
DPDT
-
Overvoltage, Undervoltage
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-
DIN Rail
-
-
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-
Phase Failure, Phase Sequence
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17.5mm
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Screw
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RS Stock No.: 225-7386Brand: RS PRO
€ 216.94
€ 216.94 Each (Exc. VAT)
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
€ 128.27
€ 128.27 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
12 → 24V dc
Undervoltage
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-
DIN Rail
-
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-
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-
0 → 30s
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L
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1
+60°C
17.5mm
-20°C
-
12V dc
24V dc
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-
66.5mm
89mm
-
-
Screw
17.5 x 66.5 x 89mm
+60°C
-
RS Stock No.: 102-6136Brand: RS PRO
€ 139.91
€ 139.91 Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
SPDT
-
Undervoltage
-
-
DIN Rail
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
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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
1
+60°C
17.5mm
-20°C
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-
-
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-
66.5mm
89mm
-
-
Screw
17.5 x 66.5 x 89mm
+60°C
-
RS Stock No.: 102-6135Brand: RS PRO
€ 133.62
€ 133.62 Each (Exc. VAT)
Check stock
1
RS Pro
Phase, Voltage
3
SPDT
Maximum of 280 V
Undervoltage
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-
DIN Rail
-
-
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-
Phase Failure, Phase Sequence
100ms
48 → 63Hz
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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
1
+60°C
17.5mm
-20°C
-
-
280V
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-
66.5mm
89mm
-
-
Screw
17.5 x 66.5 x 89mm
+60°C
-
RS Stock No.: 102-6133Brand: RS PRO
€ 246.30
€ 246.30 Each (Exc. VAT)
Check stock
1
RS Pro
Voltage
1
SPDT
Maximum of 500 V
Overvoltage, Undervoltage
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-
DIN Rail
-
-
-
-
-
0.1 → 30s
48 → 63Hz
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L
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1
+60°C
17.5mm
-20°C
-
-
500V
-
-
66.5mm
89mm
-
-
Screw
17.5 x 66.5 x 89mm
+60°C
-
RS Stock No.: 102-6134Brand: RS PRO
€ 246.30
€ 246.30 Each (Exc. VAT)
Check stock
1
RS Pro
Current
1
SPDT
-
-
-
-
DIN Rail
1A
-
10A
Overcurrent, Undercurrent
-
0.1 → 30s
48 → 63Hz
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L
Green LED Indication for Supply Status
1
+60°C
17.5mm
-20°C
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-
66.5mm
89mm
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-
Screw
66.5 x 17.5 x 89mm
+60°C
1 → 10A
RS Stock No.: 102-6137Brand: RS PRO
€ 180.79
€ 180.79 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
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
1
+60°C
17.5mm
-20°C
-
-
-
-
-
66.5mm
89mm
-
-
Screw
17.5 x 66.5 x 89mm
+60°C
-
RS Stock No.: 102-6131Brand: RS PRO
€ 139.35
€ 139.35 Each (Exc. 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
1
+60°C
17.5mm
-20°C
-
-
-
48Hz
-
66.5mm
89mm
-
63Hz
Screw
17.5 x 66.5 x 89mm
+60°C
-
€ 418.83
€ 418.83 Each (Exc. VAT)
Check stock
1
ATC
Frequency, Phase, Voltage
2
SPDT
300 → 600V ac
Frequency, Overvoltage, Phase Asymmetry, Phase Failure, Phase Sequence, Undervoltage
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DIN Rail
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€ 365.71
€ 365.71 Each (Exc. VAT)
Check stock
1
€ 249.76
€ 249.76 Each (Exc. VAT)
Check stock
1
€ 336.21
€ 336.21 Each (Exc. VAT)
Check stock
1
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