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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ComparePrice forQuantity
44AC2640

RoHS

Each
1+
$101.340
5+
$91.990
10+
$90.640
25+
$88.410
50+
$83.960
More Pricing...
Min: 1 / Mult: 1
PDD 225 Series
DPDT
5A
DIN Rail
24W8372

RoHS

Each
1+
$852.190
5+
$824.500
10+
$786.330
25+
$748.060
50+
$649.170
Min: 1 / Mult: 1
BD 9080
DPDT
-
DIN Rail
04AC8452

RoHS

Each
1+
$124.870
5+
$113.360
10+
$111.690
25+
$108.940
50+
$103.450
More Pricing...
Min: 1 / Mult: 1
-
SPDT
8A
DIN Rail
27R1423

RoHS

Date/Lot Code

Each
1+
$314.740
5+
$314.740
10+
$314.740
25+
$314.740
Min: 1 / Mult: 1
S142A Series
SPDT
8A
Socket
71K2933

RoHS

Each
1+
$163.800
5+
$155.610
10+
$150.700
25+
$145.790
Min: 1 / Mult: 1
DIB01 Series
SPDT
8A
DIN Rail
34AH2992

RoHS

Each
1+
$445.480
5+
$424.010
Min: 1 / Mult: 1
CM-TCS
DPDT
4A
DIN Rail
67AH3181

RoHS

Each
1+
$184.120
10+
$174.550
25+
$157.810
Min: 1 / Mult: 1
Zelio
DPDT
5A
DIN Rail
04AC8453

RoHS

Each
1+
$124.870
5+
$113.360
10+
$111.690
25+
$108.940
50+
$103.450
More Pricing...
Min: 1 / Mult: 1
-
SPDT
8A
DIN Rail
44AC2641

RoHS

Each
1+
$88.860
5+
$80.660
10+
$79.470
25+
$77.520
50+
$73.620
More Pricing...
Min: 1 / Mult: 1
PDD 225 Series
DPDT
5A
DIN Rail
09P6664

RoHS

Date/Lot Code

Each
1+
$212.470
5+
$207.170
10+
$201.860
25+
$191.230
50+
$180.600
Min: 1 / Mult: 1
Zelio Series
DPDT
5A
DIN Rail
38Y7644

RoHS

Date/Lot Code

Each
1+
$117.310
5+
$114.650
10+
$112.000
25+
$106.700
50+
$101.400
More Pricing...
Min: 1 / Mult: 1
K8AK-PH Series
DPDT-NC
5A
DIN Rail
06X0781
Each
1+
$168.530
Min: 1 / Mult: 1
-
SPDT
10A
-
85AK6218

RoHS

Each
1+
$251.840
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
69AK8655

RoHS

Each
1+
$57.130
100+
$57.130
250+
$57.130
500+
$57.130
1000+
$57.130
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
69AK8663

RoHS

Each
1+
$69.080
100+
$63.320
250+
$63.320
500+
$63.320
1000+
$58.450
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
69AK8664

RoHS

Each
1+
$45.700
100+
$45.700
250+
$45.700
500+
$45.700
1000+
$45.700
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
69AK8677

RoHS

Each
1+
$79.780
100+
$79.780
250+
$79.780
500+
$79.780
1000+
$79.780
Min: 1 / Mult: 1
MP Temperature Control Relays
SPDT
10A
DIN Rail
12AM0919

RoHS

Each
1+
$192.250
5+
$166.120
10+
$163.200
Min: 1 / Mult: 1
DTA04 Series
2 x SPST-NO
8A
DIN Rail
69AK8666

RoHS

Each
1+
$50.660
100+
$50.660
250+
$50.660
500+
$50.660
1000+
$50.660
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
69AK8671

RoHS

Each
1+
$84.530
100+
$77.490
250+
$77.490
500+
$77.490
1000+
$71.520
Min: 1 / Mult: 1
MP Temperature Control Relays
SPST-NO, SPST-NO
5A
DIN Rail
69AK8657

RoHS

Each
1+
$65.920
100+
$65.920
250+
$65.920
500+
$65.920
1000+
$65.920
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
DPDT
5A
DIN Rail
69AK8658

RoHS

Each
1+
$86.320
100+
$79.120
250+
$79.120
500+
$79.120
1000+
$73.040
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
69AK8670

RoHS

Each
1+
$56.200
100+
$56.200
250+
$56.200
500+
$56.200
1000+
$56.200
Min: 1 / Mult: 1
MP Temperature Control Relays
DPDT
5A
DIN Rail
80AK3864

RoHS

Each
1+
$102.220
10+
$93.300
25+
$92.020
50+
$89.750
100+
$83.900
More Pricing...
Min: 1 / Mult: 1
70 Series
DPDT
8A
DIN Rail
69AK8662

RoHS

Each
1+
$37.360
100+
$37.360
250+
$37.360
500+
$37.360
1000+
$37.360
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
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