Monitoring Relays:

210 Products Found

Newark offers a comprehensive range of monitoring relays, ideal for safeguarding electrical systems and ensuring optimal performance. Our selection includes current, ground fault, insulation, phase and temperature monitoring relays from leading manufacturers. Designed to enhance safety and efficiency, these relays are available in various configurations for industrial and commercial applications.

Monitoring relays are protective devices that monitor key electrical parameters such as current, voltage, phase sequence, insulation resistance and temperature. They detect anomalies and trigger alerts or corrective actions to prevent equipment damage and system failure. These relays play a vital role in protecting motors, generators and other critical electrical equipment.

Current Monitoring Relays – Detect overcurrent, undercurrent and phase imbalance to protect motors and equipment. Ground Fault Monitoring Relays – Identify leakage currents to prevent electrical hazards and improve safety. Insulation Monitoring Relays – Measure insulation resistance to detect faults before they cause failure. Phase Monitoring Relays – Monitor phase sequence, loss and imbalance to ensure stable operation. Temperature Monitoring Relays – Detect overheating and activate cooling or shutdown systems.

Applications:

  • Industrial Automation – Protect motors and equipment from electrical faults.
  • HVAC Systems – Ensure efficient operation and prevent overheating.
  • Power Distribution – Maintain system stability and prevent blackouts.
  • Renewable Energy – Monitor electrical health in solar and wind systems.
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50M2856

RoHS

Each
5+
$166.710
10+
$161.450
25+
$156.180
Min: 5 / Mult: 5
DPA01 Series
SPDT
8A
DIN Rail
16C3175

RoHS

Each
5+
$120.970
10+
$117.150
25+
$113.330
Min: 5 / Mult: 5
DPA01 Series
DPDT
8A
DIN Rail
81C2841

RoHS

Each
1+
$231.310
Min: 5 / Mult: 1
EI Series
SPDT
8A
DIN Rail
34AC8907

RoHS

Each
1+
$244.750
5+
$228.670
10+
$212.590
25+
$200.810
Min: 1 / Mult: 1
460 Series
SPST-NO, SPST-NC
8A
DIN Rail, Panel
34AC3146

RoHS

Each
1+
$291.850
5+
$272.660
10+
$253.460
25+
$239.390
Min: 1 / Mult: 1
HLMU Series
DPDT
10A
Panel Mount
34AC8664

RoHS

Each
1+
$199.090
5+
$186.020
10+
$172.970
25+
$163.380
50+
$156.450
Min: 1 / Mult: 1
201A Series
SPDT
10A
Socket
74AC9283

RoHS

Each
1+
$134.580
5+
$132.500
10+
$130.410
Min: 1 / Mult: 1
DTA72 Series
SPDT
8A
DIN Rail
37AC0904

RoHS

Each
1+
$6,299.720
Min: 1 / Mult: 1
SE 134C
SPST-NO, SPST-NC
-
Panel Mount
70AH0684

RoHS

Each
1+
$106.150
10+
$96.880
25+
$95.560
50+
$93.210
100+
$87.120
More Pricing...
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail, Panel
34AH2976

RoHS

Each
1+
$272.250
Min: 1 / Mult: 1
CM-IWS
SPDT
-
DIN Rail
34AH2990

RoHS

Each
1+
$585.010
5+
$563.270
10+
$539.020
25+
$515.600
Min: 1 / Mult: 1
CM-TCS
DPDT
4A
DIN Rail
67P3589
Each
1+
$143.330
Min: 1 / Mult: 1
SPM Series
DPDT
10A
-
66AH6828

RoHS

Each
1+
$216.930
Min: 1 / Mult: 1
Zelio RM17UBE
SPDT
5A
DIN Rail
20J6493

RoHS

Each
1+
$277.260
5+
$259.610
10+
$242.360
25+
$220.050
50+
$199.760
More Pricing...
Min: 1 / Mult: 1
PAP Series
SPDT
10A
Socket
05M4252

RoHS

Each
5+
$221.600
10+
$214.600
25+
$207.610
Min: 5 / Mult: 5
PIB01 Series
SPDT
8A
Socket
34AC8670

RoHS

Each
1+
$163.770
5+
$153.030
10+
$142.300
25+
$134.430
50+
$128.710
Min: 1 / Mult: 1
202 Series
SPDT
10A
Socket
69AC7486

RoHS

Each
1+
$111.040
5+
$101.130
10+
$93.830
25+
$88.100
50+
$82.890
More Pricing...
Min: 1 / Mult: 1
EMD
SPDT
5A
DIN Rail
34AC6498

RoHS

Date/Lot Code

Each
1+
$143.110
5+
$133.730
10+
$124.360
25+
$117.480
50+
$112.490
Min: 1 / Mult: 1
TCS Series
SPST-NO
1A
DIN Rail
66AH6831

RoHS

Each
1+
$190.870
Min: 1 / Mult: 1
Zelio RM22TU
DPDT
8A
DIN Rail
34AC8681

RoHS

Each
1+
$532.650
5+
$497.510
10+
$462.370
Min: 1 / Mult: 1
PumpSaver Series
SPST
-
Panel Mount
34AH3007

RoHS

Each
1+
$392.770
5+
$380.010
10+
$362.410
25+
$344.770
50+
$299.200
Min: 1 / Mult: 1
CM-TCS
DPDT
4A
DIN Rail
05M4253

RoHS

Each
1+
$227.910
Min: 5 / Mult: 1
PIB02 Series
SPDT
8A
Socket
40T1796

RoHS

Date/Lot Code

Each
1+
$261.420
5+
$233.440
10+
$216.720
25+
$188.600
50+
$169.530
More Pricing...
Min: 1 / Mult: 1
PMPU-FA8 Series
SPDT
10A
-
16C3118

RoHS

Each
5+
$171.790
10+
$166.370
25+
$160.940
Min: 5 / Mult: 5
DIB01 Series
SPDT
8A
DIN Rail
40T0199

RoHS

Each
1+
$247.000
5+
$231.270
10+
$215.910
25+
$196.040
50+
$177.960
More Pricing...
Min: 1 / Mult: 1
CAH Series
SPDT
10A
Panel Mount
126-150 of 210 items
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