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 1171 products
RS Stock No.: 223-7795Brand: RS PRO
€ 145.99
€ 145.99 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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Screw
90mm
-20 → +60°C
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-20°C
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+60°C
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17.5 x 90 x 66.5mm
66.5mm
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-
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-
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-
RS Stock No.: 223-7789Brand: RS PRO
€ 167.83
€ 167.83 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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2 → 999s
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Screw
36mm
-10 → +60°C
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-10°C
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+60°C
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36 x 90 x 67mm
66.21mm
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RS Stock No.: 223-7790Brand: RS PRO
€ 179.32
€ 179.32 Each (Exc. Vat)
Check stock
1
RS Pro
Voltage
3
DPDT
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
-
2 → 999s
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-
-
-
Screw
36mm
-10 → +60°C
-
-
-10°C
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+60°C
-
36 x 90 x 67mm
66.21mm
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90mm
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-
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-
RS Stock No.: 223-7788Brand: RS PRO
€ 156.33
€ 156.33 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
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-
-
-
Screw
36mm
-10 → +60°C
-
-
-10°C
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+60°C
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36 x 90 x 67mm
66.21mm
45Hz
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65Hz
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-
RS Stock No.: 223-7791Brand: RS PRO
€ 149.44
€ 149.44 Each (Exc. Vat)
Check stock
1
RS Pro
Phase
3
SPDT
-
Overvoltage Protection, Undervoltage Protection
-
DIN Rail
-
-
-
-
-
-
-
-
-
-
-
Screw
90mm
-20 → +60°C
-
-
-20°C
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+60°C
-
17.5 x 90 x 66.5mm
66.5mm
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-
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-
-
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-
RS Stock No.: 225-7388Brand: RS PRO
€ 151.73
€ 151.73 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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Screw
17.5mm
-20 → +60°C
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°C
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+60°C
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89 x 17.5 x 66.5mm
89mm
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66.5mm
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540V
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243 V
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RS Stock No.: 225-7384Brand: RS PRO
€ 77.02
€ 77.02 Each (Exc. Vat)
Check stock
1
RS Pro
Phase
3
-
-
-
-
DIN Rail, Surface Mount
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-
-
-
-
Phase Failure, Phase Sequence
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-
-
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Screw
17.5mm
-20 → +60°C
3 LEDs for Phase presence status, Sequence Status,
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-20°C
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+60°C
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66.5mm
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RS Stock No.: 225-7387Brand: RS PRO
€ 152.88
€ 152.88 Each (Exc. Vat)
Check stock
1
RS Pro
Phase, Voltage
3
DPDT
-
Overvoltage, Undervoltage
-
DIN Rail
-
-
-
-
-
Phase Failure, Phase Sequence
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Screw
17.5mm
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RS Stock No.: 225-7386Brand: RS PRO
€ 137.94
€ 137.94 Each (Exc. Vat)
Check stock
1
RS Stock No.: 132-174Brand: RS PRO
Price on Asking
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1
RS Stock No.: 132-171Brand: RS PRO
Price on Asking
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1
RS Stock No.: 122-217Brand: RS PRO
Price on Asking
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1
RS Stock No.: 122-216Brand: RS PRO
Price on Asking
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1
RS Stock No.: 132-173Brand: RS PRO
Price on Asking
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1
RS Stock No.: 132-172Brand: RS PRO
Price on Asking
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1
RS Stock No.: 122-215Brand: RS PRO
Price on Asking
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1
RS Stock No.: 122-210Brand: RS PRO
Price on Asking
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1
RS Stock No.: 122-212Brand: RS PRO
Price on Asking
Check stock
1
RS Stock No.: 102-6130Brand: RS PRO
€ 81.04
€ 81.04 Each (Exc. Vat)
Check stock
1
RS Pro
Voltage
1
SPDT
12 → 24V dc
Undervoltage
-
DIN Rail
-
-
-
-
-
-
0 → 30s
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L
Screw
17.5mm
+60°C
-
-
-20°C
1
+60°C
-
17.5 x 66.5 x 89mm
66.5mm
-
89mm
-
24V dc
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12V dc
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RS Stock No.: 102-6136Brand: RS PRO
€ 88.51
€ 88.51 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
Screw
17.5mm
+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
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-20°C
1
+60°C
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17.5 x 66.5 x 89mm
66.5mm
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89mm
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