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
Overload Adjustment Current Max
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ComparePrice forQuantity
44AM4670

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
600mA
1A
-
-
11RF9 Series
46AM4275

RoHS

Each
1+
$103.120
5+
$95.940
10+
$89.540
25+
$82.760
50+
$78.070
More Pricing...
Min: 1 / Mult: 1
20A
25A
-
-
RF38 Series
46AM4278
Each
1+
$181.250
5+
$168.080
10+
$162.330
25+
$156.220
50+
$148.300
Min: 1 / Mult: 1
20A
33A
-
-
RF82 Series
46AM4281
Each
1+
$257.210
5+
$245.570
10+
$181.560
25+
$162.940
50+
$160.620
Min: 1 / Mult: 1
46A
65A
-
-
RF82 Series
44AM4676

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
3A
5A
-
-
11RF9 Series
44AM4674

RoHS

Each
1+
$90.530
25+
$87.520
50+
$84.520
100+
$81.510
250+
$80.020
More Pricing...
Min: 1 / Mult: 1
1.4A
2.3A
-
-
11RF9 Series
44AM4677

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
4.5A
7.5A
-
-
11RF9 Series
44AM4672

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
6A
10A
-
-
11RF9 Series
46AM4280
Each
1+
$211.820
10+
$196.700
25+
$189.710
50+
$182.730
100+
$174.570
Min: 1 / Mult: 1
35A
50A
-
-
RF82 Series
44AM4465

RoHS

Each
1+
$214.570
10+
$206.240
25+
$196.870
50+
$186.450
100+
$174.990
Min: 1 / Mult: 1
35A
50A
-
-
RF82 Series
46AM4271

RoHS

Each
1+
$82.480
5+
$78.750
10+
$76.740
25+
$67.910
50+
$62.440
More Pricing...
Min: 1 / Mult: 1
6.3A
10A
-
-
RF38 Series
44AM4671

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
900mA
1.5A
-
-
11RF9 Series
46AM4272

RoHS

Each
1+
$78.730
5+
$75.170
10+
$73.250
25+
$64.820
50+
$59.600
More Pricing...
Min: 1 / Mult: 1
9A
14A
-
-
RF38 Series
46AM4266

RoHS

Each
1+
$82.480
5+
$78.750
10+
$76.740
25+
$67.910
50+
$62.440
More Pricing...
Min: 1 / Mult: 1
630mA
1A
-
-
RF38 Series
44AM4668

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
300mA
500mA
-
-
11RF9 Series
44AM4673

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
9A
15A
-
-
11RF9 Series
44AM4675

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
2A
3.3A
-
-
11RF9 Series
44AM4665

RoHS

Each
1+
$109.220
25+
$105.600
50+
$101.970
100+
$98.360
250+
$96.540
More Pricing...
Min: 1 / Mult: 1
6A
10A
-
-
11RFA9 Series
46AM4283
Each
1+
$514.430
5+
$491.150
10+
$363.140
25+
$325.890
50+
$321.240
Min: 1 / Mult: 1
70A
95A
-
-
RF82 Series
46AM4274

RoHS

Each
1+
$103.120
5+
$95.940
10+
$89.540
25+
$82.760
50+
$78.070
More Pricing...
Min: 1 / Mult: 1
17A
23A
-
-
RF38 Series
46AM4277

RoHS

Each
1+
$144.360
5+
$134.300
10+
$125.350
25+
$115.850
50+
$109.290
More Pricing...
Min: 1 / Mult: 1
32A
38A
-
-
RF38 Series
46AM4269

RoHS

Each
1+
$82.480
5+
$78.750
10+
$76.740
25+
$67.910
50+
$62.440
More Pricing...
Min: 1 / Mult: 1
2.5A
4A
-
-
RF38 Series
46AM4276

RoHS

Each
1+
$144.360
5+
$134.300
10+
$125.350
25+
$115.850
50+
$109.290
More Pricing...
Min: 1 / Mult: 1
24A
32A
-
-
RF38 Series
44AM4669

RoHS

Each
1+
$89.210
25+
$86.240
50+
$83.290
100+
$80.330
250+
$78.840
More Pricing...
Min: 1 / Mult: 1
450mA
750mA
-
-
11RF9 Series
46AM4265
Each
1+
$82.480
5+
$78.750
10+
$76.740
25+
$67.910
50+
$62.440
More Pricing...
Min: 1 / Mult: 1
400mA
630mA
-
-
RF38 Series
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