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Monitoring Relays
Monitoring relays are a type of relay that trips a circuit breaker when a fault is detected. A relay is an electrically controlled switch that is used to turn the power on or off in a circuit.
Monitoring relays are more sophisticated than regular relays, as they have adjustable operating conditions, whereas normal relays switch according to a fixed threshold. They measure a given p...
Showing 1-20 of 724 products
RS Stock No. 242-5416
Brand GILGEN Muller & Weigert
Manufacturers Part No. DACT-ELR-A Fehlerstrom-Relais 230V AC
$ 351.51
Each
Check stock
1
GILGEN Muller & Weigert
Earth Leakage
SPDT
Overvoltage Protection, Undervoltage Protection
Single, Three
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RS Stock No. 206-1444
Brand Broyce Control
Manufacturers Part No. LPPI
$ 50.46
Each
Check stock
1
Broyce Control
Phase
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3
320 → 490V ac
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-
Phase Failure, Phase Sequence
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L
48 → 63Hz
DIN Rail
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Screw
59mm
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-
490V ac/dc
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89mm
+60°C
17.5mm
-20°C
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+60°C
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59 x 17.5 x 89mm
RS Stock No. 876-5033
Brand ABB
Manufacturers Part No. 1SVR730712R2200 CM-MSS.33S
$ 100.26
Each
Check stock
1
ABB
Temperature
DPDT
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1
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-
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<100ms
Overtemperature, Winding Temperature
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CM-MSS
-
DIN Rail
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Screw
103.7mm
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1
85.6mm
+60°C
22.5mm
-25°C
Fail-Safe, Inbuilt PTC Sensor, Insufficient Cooling Protection, Manual & Automatic Reset, One Measuring Circuit, Over Heating Protection, Over Load Protection, Remote Reset, Short-Circuit Monitoring of the Sensor Circuit, Test and Reset Button
+60°C
Maximum of 3.7mA
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103.7 x 22.5 x 85.6mm
RS Stock No. 223-7795
Brand RS PRO
$ 79.50
Each
Check stock
1
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
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-
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DIN Rail
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Screw
66.5mm
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+60°C
90mm
-20°C
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-20 → +60°C
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17.5 x 90 x 66.5mm
RS Stock No. 223-7794
Brand RS PRO
$ 105.97
Each
Check stock
1
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
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DIN Rail
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Screw
66.5mm
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+60°C
90mm
-20°C
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-20 → +60°C
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17.5 x 90 x 66.5mm
RS Stock No. 223-7792
Brand RS PRO
$ 91.49
Each
Check stock
1
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
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DIN Rail
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Screw
66.5mm
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+60°C
90mm
-20°C
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-20 → +60°C
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17.5 x 90 x 66.5mm
RS Stock No. 223-7790
Brand RS PRO
$ 133.56
Each
Check stock
1
RS Pro
Phase Voltage
2CO
Overvoltage Protection, Undervoltage Protection
3
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2 → 999s
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-
DIN Rail
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Screw
66.21mm
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+60°C
36mm
-10°C
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-10 → +60°C
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36 x 90 x 67mm
RS Stock No. 223-7789
Brand RS PRO
$ 124.67
Each
Check stock
1
RS Pro
Phase Voltage
2CO
Overvoltage Protection, Undervoltage Protection
3
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2 → 999s
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DIN Rail
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Screw
66.21mm
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+60°C
36mm
-10°C
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-10 → +60°C
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36 x 90 x 67mm
RS Stock No. 876-5014
Brand ABB
Manufacturers Part No. 1SVR730700R0200 CM-MSS.22S
$ 94.74
Each
Check stock
1
ABB
Temperature
DPDT
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<100ms
Overtemperature, Winding Temperature
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CM-MSS
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DIN Rail
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Screw
103.7mm
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1
85.6mm
+60°C
22.5mm
-25°C
Fail-Safe, Inbuilt PTC Sensor, Insufficient Cooling Protection, Manual & Automatic Reset, Non-Volatile Fault Storage, One Measuring Circuit, Over Heating Protection, Over Load Protection, Remote Reset, Short-Circuit Monitoring of the Sensor Circuit
+60°C
Maximum of 3.7mA
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103.7 x 22.5 x 85.6mm
RS Stock No. 223-7788
Brand RS PRO
$ 115.71
Each
Check stock
1
RS Pro
Phase, Voltage
1CO
Overvoltage Protection, Undervoltage Protection
3
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2 → 999s
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DIN Rail
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Screw
66.21mm
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+60°C
36mm
-10°C
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-10 → +60°C
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36 x 90 x 67mm
RS Stock No. 223-7791
Brand RS PRO
$ 87.78
Each
Check stock
1
RS Pro
Phase
SPDT
Overvoltage Protection, Undervoltage Protection
3
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DIN Rail
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Screw
66.5mm
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+60°C
90mm
-20°C
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-20 → +60°C
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17.5 x 90 x 66.5mm
RS Stock No. 876-4998
Brand ABB
Manufacturers Part No. 1SVR730700R0100 CM-MSS.12S
$ 87.53
Each
Check stock
1
ABB
Temperature
SPDT
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<100ms
Overtemperature, Winding Temperature
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CM-MSS
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DIN Rail
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Screw
103.7mm
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1
85.6mm
+60°C
22.5mm
-25°C
Automatic Reset, Fail-Safe, Inbuilt PTC Sensor, Insufficient Cooling Protection, One Measuring Circuit, Over Heating Protection, Over Load Protection
+60°C
Maximum of 3.7mA
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103.7 x 22.5 x 85.6mm
RS Stock No. 222-6842
Brand Broyce Control
Manufacturers Part No. LXCVR-EV 230VAC
$ 69.06
Each
Check stock
1
Broyce Control
Phase, Voltage
SPDT
Overvoltage, Undervoltage
1
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Single Phase
4s
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L
-
DIN Rail
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Screw
66.5mm
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1
-
+60°C
17.5mm
-20°C
Fixed Trip Levels and Time Delay
-20 → +60°C
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17.5 x 89 x 66.5mm
RS Stock No. 225-7385
Brand RS PRO
$ 113.32
Each
Check stock
1
RS Pro
Voltage
DPDT
Undervoltage
3
243 → 540 V
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Phase Asymmetry, Phase Failure, Phase Sequence
0.2 → 10s
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DIN Rail
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Screw
89mm
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540V
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243 V
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66.5mm
+60°C
17.5mm
-20°C
Microprocessor Based, Detects Incorrect Phase Sequence, Phase Loss And Neutral Loss, Adjustment For Asymmetry Trip Level, Adjustment For Time Delay, Green Led Indication For Supply Status
-20 → +60°C
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89 x 17.5 x 66.5mm
RS Stock No. 179-3538
Brand Eaton
Manufacturers Part No. 184772 EMR6-R250-A-1
$ 334.44
Each
Check stock
1
Eaton
Insulation
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3
0 → 250 V ac, 0 → 300V dc
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EMR6
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DIN Rail
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Screw
109.5mm
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250 V ac, 300V dc
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0V ac/dc
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78mm
+60°C
22.5mm
-25°C
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+60°C
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109.5 x 22.5 x 78mm
RS Stock No. 775-7930
Brand ABB
Manufacturers Part No. 1SVR730750R0400 CM-EFS.2S
$ 272.02
Each
Check stock
1
ABB
Voltage
DPDT
Overvoltage, Undervoltage
1
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0 s, 0.1 → 30s
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CM-EFS
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DIN Rail
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Screw
103.7mm
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30 V, 60 V, 300 V, 600V
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85.6mm
+60°C
22.5mm
-20°C
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+60°C
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103.7 x 22.5 x 85.6mm
RS Stock No. 806-5910
Brand ABB
Manufacturers Part No. 1SVR730660R0100 CM-IWS.1S
$ 348.76
Each
Check stock
1
ABB
Insulation
SPDT
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1, 3
0 → 250 V ac, 0 → 300V dc
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CM-IWS
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DIN Rail
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Screw
103.7mm
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250 V ac, 300V dc
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0V ac/dc
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85.6mm
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22.5mm
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103.7 x 22.5 x 85.6mm
RS Stock No. 775-7955
Brand ABB
Manufacturers Part No. 1SVR730830R0400 CM-ESS.2S
$ 250.90
Each
Check stock
1
ABB
Voltage
DPDT
Overvoltage, Undervoltage
1
3→30 V, 6→60 V, 30→300 V, 60→600 V
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0 s, 0.1 → 30s
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CM-ESS
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DIN Rail
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Screw
103.7mm
-
30 V, 60 V, 300 V, 600V
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-
85.6mm
+60°C
22.5mm
-20°C
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+60°C
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103.7 x 22.5 x 85.6mm
RS Stock No. 876-5783
Brand ABB
Manufacturers Part No. 1SVR730740R9200 CM-TCS.22S
$ 238.53
Each
Check stock
1
ABB
Temperature
SPDT
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3
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20ms
Overtemperature, Temperature Window Monitoring, Undertemperature
0 → +100°C
CM-TCS
45 → 65Hz
DIN Rail
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Screw
103.7mm
+100°C
-
0°C
45Hz
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1
85.6mm
+60°C
22.5mm
-40°C
12 LEDs for the Indication of Operational States, All Configurations and Adjustments by Front-Face Operating Elements, Hysteresis 2-20 % Adjustable, One or Two Threshold Values, Precise Adjustment With Direct Reading Scales
+60°C
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103.7 x 22.5 x 85.6mm
RS Stock No. 179-3547
Brand Eaton
Manufacturers Part No. 184779 EMR6-W500-D-1
$ 258.16
Each
Check stock
1
Eaton
Phase, Voltage
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Overvoltage, Undervoltage
-
300 → 500V ac
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Phase Failure, Phase Sequence
0.1 → 30s
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-
EMR6
50 → 60Hz
DIN Rail
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Screw
109.5mm
-
500V ac
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50Hz
300V ac
-
78mm
+60°C
22.5mm
-25°C
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+60°C
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109.5 x 22.5 x 78mm
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