Element14 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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ComparePrice ForQuantity
1824777

RoHS

Each
1+
CNY766.650
(CNY866.3145)
5+
CNY728.290
(CNY822.9677)
10+
CNY705.290
(CNY796.9777)
20+
CNY691.190
(CNY781.0447)
Min: 1 / Mult: 1
DIA53 Series
SPST-NO
100mA
DIN Rail
2811519

RoHS

Each
1+
CNY685.970
(CNY775.1461)
5+
CNY672.260
(CNY759.6538)
10+
CNY658.540
(CNY744.1502)
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
2835320

RoHS

Each
1+
CNY1,100.090
(CNY1,243.1017)
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
3111268

RoHS

Each
1+
CNY445.200
(CNY503.076)
5+
CNY441.770
(CNY499.2001)
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
3223705

RoHS

Each
1+
CNY2,063.220
(CNY2,331.4386)
Min: 1 / Mult: 1
CM Series
SPDT
-
DIN Rail
1895998

RoHS

Each
1+
CNY694.460
(CNY784.7398)
5+
CNY680.580
(CNY769.0554)
10+
CNY666.690
(CNY753.3597)
Min: 1 / Mult: 1
CM-PFE Series
SPDT
4A
DIN Rail
2811520

RoHS

Each
1+
CNY606.300
(CNY685.119)
5+
CNY594.180
(CNY671.4234)
10+
CNY582.050
(CNY657.7165)
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
3111267

RoHS

Each
1+
CNY870.180
(CNY983.3034)
5+
CNY852.780
(CNY963.6414)
10+
CNY835.380
(CNY943.9794)
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
2102349

RoHS

Each
Pricing is unavailable. Please contact customer services.
CM Series
DPDT
4A
DIN Rail
2612119

RoHS

Each
1+
CNY1,703.310
(CNY1,924.7403)
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
3223707

RoHS

Each
1+
CNY4,546.430
(CNY5,137.4659)
Min: 1 / Mult: 1
CM Series
DPDT
-
DIN Rail
3111269

RoHS

Each
1+
CNY1,116.880
(CNY1,262.0744)
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
9514430

RoHS

Each
1+
CNY5,418.360
(CNY6,122.7468)
Min: 1 / Mult: 1
BD 9080 Series
DPDT
-
DIN Rail
9515399

RoHS

Each
1+
CNY1,066.170
(CNY1,204.7721)
5+
CNY1,050.740
(CNY1,187.3362)
10+
CNY1,023.550
(CNY1,156.6115)
Min: 1 / Mult: 1
-
DPDT
-
DIN Rail
3223721

RoHS

Each
1+
CNY1,942.600
(CNY2,195.138)
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
4259624
Each
1+
CNY1,332.580
(CNY1,505.8154)
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
9515046

RoHS

Each
1+
CNY706.610
(CNY798.4693)
5+
CNY696.390
(CNY786.9207)
10+
CNY678.360
(CNY766.5468)
Min: 1 / Mult: 1
-
SPST-NC
-
DIN Rail
2455513

RoHS

Each
1+
CNY761.800
(CNY860.834)
5+
CNY666.570
(CNY753.2241)
10+
CNY562.710
(CNY635.8623)
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
2612113

RoHS

Each
1+
CNY1,131.700
(CNY1,278.821)
Min: 1 / Mult: 1
K8AK-AS Series
SPDT
5A
DIN Rail
4163409

RoHS

Each
1+
CNY675.190
(CNY762.9647)
5+
CNY648.200
(CNY732.466)
10+
CNY635.470
(CNY718.0811)
20+
CNY623.230
(CNY704.2499)
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
4244798

RoHS

Each
1+
CNY630.760
(CNY712.7588)
5+
CNY618.150
(CNY698.5095)
10+
CNY605.530
(CNY684.2489)
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail
4259621
Each
1+
CNY896.060
(CNY1,012.5478)
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
4259625
Each
1+
CNY1,260.970
(CNY1,424.8961)
Min: 1 / Mult: 1
SLU Series
SPDT
10A
Socket
2811545

RoHS

Each
1+
CNY395.300
(CNY446.689)
5+
CNY387.400
(CNY437.762)
10+
CNY379.490
(CNY428.8237)
20+
CNY371.590
(CNY419.8967)
Min: 1 / Mult: 1
-
SPDT
5A
DIN Rail
2784953

RoHS

Each
1+
CNY13,757.030
(CNY15,545.4439)
Min: 1 / Mult: 1
SE-601 Series
SPST-NO, SPST-NC
-
DIN Rail, Panel
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