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 1257 products
RS Stock No.: 132-174Brand: RS PRO
€ 30.13
€ 30.13 Each (Exc. Vat)
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1
RS Stock No.: 132-171Brand: RS PRO
€ 27.65
€ 27.65 Each (Exc. Vat)
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1
RS Stock No.: 122-217Brand: RS PRO
€ 13.64
€ 13.64 Each (Exc. Vat)
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1
RS Stock No.: 122-216Brand: RS PRO
€ 18.72
€ 18.72 Each (Exc. Vat)
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1
RS Stock No.: 132-172Brand: RS PRO
€ 18.60
€ 18.60 Each (Exc. Vat)
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1
RS Stock No.: 132-173Brand: RS PRO
€ 23.31
€ 23.31 Each (Exc. Vat)
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1
RS Stock No.: 122-210Brand: RS PRO
€ 21.33
€ 21.33 Each (Exc. Vat)
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1
RS Stock No.: 122-215Brand: RS PRO
€ 28.52
€ 28.52 Each (Exc. Vat)
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1
RS Stock No.: 122-212Brand: RS PRO
€ 25.05
€ 25.05 Each (Exc. Vat)
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1
RS Stock No.: 102-6130Brand: RS PRO
€ 80.60
€ 80.60 Each (Exc. Vat)
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1
RS Pro
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-
Voltage
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1
SPDT
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12 → 24V dc
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Undervoltage
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-
DIN Rail
-
-
-
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-
0 → 30s
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-
-
L
89mm
Screw
-
+60°C
66.5mm
1
24V dc
12V dc
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-
-
-
17.5mm
17.5 x 66.5 x 89mm
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-
+60°C
-20°C
RS Stock No.: 102-6136Brand: RS PRO
€ 88.04
€ 88.04 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Phase, Voltage
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3
SPDT
-
-
-
Undervoltage
-
-
DIN Rail
-
-
-
-
Phase Failure, Phase Sequence
0.2 → 10s
48 → 63Hz
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-
L
89mm
Screw
-
+60°C
66.5mm
1
-
-
-
-
-
-
17.5mm
17.5 x 66.5 x 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
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+60°C
-20°C
RS Stock No.: 223-7792Brand: RS PRO
€ 126.48
€ 126.48 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Phase
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3
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
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-
-
-
-
-
-
-
-
-
Screw
-
+60°C
66.5mm
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-
-
-
-
-
-
90mm
17.5 x 90 x 66.5mm
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-
-20 → +60°C
-20°C
RS Stock No.: 223-7795Brand: RS PRO
€ 145.08
€ 145.08 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Phase
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3
SPDT
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Phase Loss, Voltage Assemmetry
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-
-
-
DIN Rail
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-
-
-
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-
-
-
-
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Screw
-
+60°C
66.5mm
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-
-
-
-
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-
90mm
17.5 x 90 x 66.5mm
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-
-20 → +60°C
-20°C
RS Stock No.: 102-6135Brand: RS PRO
€ 83.70
€ 83.70 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Phase, Voltage
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3
SPDT
-
Maximum of 280 V
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Undervoltage
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-
DIN Rail
-
-
-
-
Phase Failure, Phase Sequence
100ms
48 → 63Hz
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-
L
89mm
Screw
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+60°C
66.5mm
1
280V
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-
-
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-
17.5mm
17.5 x 66.5 x 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
-
+60°C
-20°C
RS Stock No.: 223-7789Brand: RS PRO
€ 166.16
€ 166.16 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Voltage
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3
DPDT
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-
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
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-
-
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2 → 999s
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-
-
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Screw
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+60°C
66.21mm
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-
-
-
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-
36mm
36 x 90 x 67mm
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-
-10 → +60°C
-10°C
RS Stock No.: 223-7790Brand: RS PRO
€ 178.56
€ 178.56 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Voltage
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3
DPDT
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-
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
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-
-
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-
2 → 999s
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-
-
-
90mm
Screw
-
+60°C
66.21mm
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-
-
-
-
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-
36mm
36 x 90 x 67mm
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-
-10 → +60°C
-10°C
RS Stock No.: 223-7788Brand: RS PRO
€ 155.00
€ 155.00 Each (Exc. Vat)
Check stock
1
RS Pro
-
-
Phase, Voltage
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3
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
-
-
-
-
Phase Loss, Phase Sequence, Phase Asymmetry
2 → 999s
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-
-
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Screw
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+60°C
66.21mm
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-
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-
65Hz
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-
36mm
36 x 90 x 67mm
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45Hz
-10 → +60°C
-10°C
RS Stock No.: 223-7791Brand: RS PRO
€ 147.56
€ 147.56 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Phase
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3
SPDT
-
-
-
Overvoltage Protection, Undervoltage Protection
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-
DIN Rail
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Screw
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+60°C
66.5mm
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-
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90mm
17.5 x 90 x 66.5mm
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-
-20 → +60°C
-20°C
RS Stock No.: 102-6133Brand: RS PRO
€ 155.00
€ 155.00 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Voltage
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1
SPDT
-
Maximum of 500 V
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Overvoltage, Undervoltage
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-
DIN Rail
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-
-
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-
0.1 → 30s
48 → 63Hz
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-
L
89mm
Screw
-
+60°C
66.5mm
1
500V
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-
-
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-
17.5mm
17.5 x 66.5 x 89mm
-
-
+60°C
-20°C
RS Stock No.: 102-6134Brand: RS PRO
€ 155.00
€ 155.00 Each (Exc. Vat)
Check stock
1
RS Pro
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-
Current
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1
SPDT
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-
-
-
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DIN Rail
1A
10A
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Overcurrent, Undercurrent
-
0.1 → 30s
48 → 63Hz
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-
L
89mm
Screw
-
+60°C
66.5mm
1
-
-
-
-
-
1 → 10A
17.5mm
66.5 x 17.5 x 89mm
Green LED Indication for Supply Status
-
+60°C
-20°C
...