Newark offers high-performance thermal overload relays designed to protect motors from overheating and excessive current. Our relays are sourced from trusted manufacturers and are available in various configurations to match your specific application needs.

Thermal overload relays use temperature-sensitive elements to detect and respond to overheating conditions. When the motor exceeds the preset temperature limit, the relay disconnects the circuit, preventing damage to the motor and associated components.

Applications:

  • Industrial Motors: Preventing damage from thermal overload.
  • HVAC Systems: Ensuring safe compressor operation.
  • Pumps and Fans: Protecting motors in continuous operation.
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Overload Adjustment Current Min
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73M2929

RoHS

Each
1+
$75.900
Min: 5 / Mult: 1
630mA
1A
-
-
GT Series
74R5391

RoHS

Each
1+
$133.270
5+
$120.480
10+
$118.630
25+
$115.580
50+
$109.490
More Pricing...
Min: 1 / Mult: 1
10A
18A
-
-
MC Series
73M2934

RoHS

Each
10+
$80.000
50+
$76.090
100+
$73.750
Min: 10 / Mult: 10
16A
22A
-
-
GT Series
71K2073

RoHS

Each
10+
$54.850
50+
$52.170
100+
$50.560
Min: 10 / Mult: 10
7A
10A
-
-
CGT Series
74R5394

RoHS

Each
1+
$133.270
5+
$120.480
10+
$118.630
25+
$115.580
50+
$109.490
More Pricing...
Min: 1 / Mult: 1
28A
42A
-
-
MC Series
73M2926

RoHS

Each
10+
$82.240
50+
$78.230
100+
$75.820
Min: 10 / Mult: 10
250mA
400mA
-
-
GT Series
74R5440

RoHS

IMO PRECISION CONTROLS
Each
1+
$58.690
5+
$53.240
10+
$51.670
25+
$50.660
50+
$48.210
More Pricing...
Min: 1 / Mult: 1
2.7A
4A
-
-
MB Series
73M2940

RoHS

Date/Lot Code

Each
10+
$79.250
50+
$75.380
100+
$73.060
Min: 10 / Mult: 10
6A
9A
-
-
GT Series
73M2947

RoHS

Each
1+
$147.000
Min: 5 / Mult: 1
34A
50A
-
-
-
73T5662

RoHS

Each
1+
$270.600
Min: 1 / Mult: 1
80A
105A
-
-
GT Series
84W8022

RoHS

Each
1+
$132.760
10+
$114.260
25+
$109.850
50+
$105.040
100+
$96.360
More Pricing...
Min: 1 / Mult: 1
-
-
24V
24V
-
74R5395

RoHS

Each
1+
$213.960
5+
$191.060
10+
$177.380
25+
$154.360
50+
$138.760
More Pricing...
Min: 1 / Mult: 1
20A
28A
-
-
MC Series
74R5393

RoHS

Each
1+
$133.270
5+
$120.480
10+
$118.630
25+
$115.580
50+
$109.490
More Pricing...
Min: 1 / Mult: 1
20A
28A
-
-
MC Series
71K2079

RoHS

Each
10+
$54.850
50+
$52.170
100+
$50.560
Min: 10 / Mult: 10
5A
8A
-
-
CGT Series
74R5436

RoHS

IMO PRECISION CONTROLS
Each
1+
$66.040
5+
$59.910
10+
$58.150
25+
$57.000
50+
$54.250
More Pricing...
Min: 1 / Mult: 1
10A
14A
-
-
MB Series
73M2927

RoHS

Each
10+
$82.240
50+
$78.230
100+
$75.820
Min: 10 / Mult: 10
400mA
630mA
-
-
GT Series
74R5383

RoHS

Each
1+
$68.360
5+
$62.020
10+
$60.210
25+
$59.000
50+
$56.160
More Pricing...
Min: 1 / Mult: 1
10A
14A
-
-
MC Series
74R5387

RoHS

Each
1+
$120.840
5+
$109.240
10+
$107.560
25+
$104.790
50+
$99.270
More Pricing...
Min: 1 / Mult: 1
23A
32A
-
-
MC Series
74R5396

RoHS

Each
1+
$201.310
5+
$179.750
10+
$166.890
25+
$145.240
50+
$130.560
More Pricing...
Min: 1 / Mult: 1
28A
42A
-
-
MC Series
74R5434

RoHS

IMO PRECISION CONTROLS
Each
1+
$59.810
5+
$54.250
10+
$52.660
25+
$51.620
50+
$49.130
More Pricing...
Min: 1 / Mult: 1
1.2A
1.8A
-
-
MB Series
74R5439

RoHS

IMO PRECISION CONTROLS
Each
1+
$116.720
5+
$105.510
10+
$103.890
25+
$101.220
50+
$95.880
More Pricing...
Min: 1 / Mult: 1
26A
30A
-
-
MB Series
73M2972

RoHS

Each
1+
$163.800
Min: 5 / Mult: 1
63A
85A
-
-
-
74R5389

RoHS

Each
1+
$60.760
5+
$55.120
10+
$53.500
25+
$52.440
50+
$49.910
More Pricing...
Min: 1 / Mult: 1
4A
6A
-
-
MC Series
71K2069

RoHS

Each
10+
$57.460
50+
$54.650
100+
$52.970
Min: 10 / Mult: 10
250mA
400mA
-
-
CGT Series
74R5378

RoHS

Each
1+
$60.760
5+
$55.120
10+
$53.500
25+
$52.440
50+
$49.910
More Pricing...
Min: 1 / Mult: 1
400mA
600mA
-
-
MC Series
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