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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Manufacturer
Overload Adjustment Current Min
Overload Adjustment Current Max
Coil Voltage AC Max
Product Range
Packaging
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73M2944

RoHS

Date/Lot Code

Each
1+
$46.500
Min: 1 / Mult: 1
18A
25A
-
GT Series
21AM3722

RoHS

Each
1+
$81.640
Min: 1 / Mult: 1
20A
25A
-
RF38 Series
91Y0879

RoHS

Each
1+
$156.000
Min: 5 / Mult: 1
18A
25A
-
GT Series
16B700

RoHS

Each
1+
$233.840
5+
$219.670
10+
$194.870
25+
$178.340
50+
$170.070
More Pricing...
Min: 1 / Mult: 1
17A
25A
690V
TeSys Series
11R1557

RoHS

Each
1+
$232.260
5+
$218.180
10+
$193.550
25+
$177.130
50+
$168.920
More Pricing...
Min: 1 / Mult: 1
17A
25A
690V
TeSys Series
16B760

RoHS

Each
1+
$145.850
5+
$137.010
10+
$121.540
25+
$111.230
50+
$106.070
More Pricing...
Min: 1 / Mult: 1
17A
25A
690V
TeSys Series
73M2935

RoHS

Each
10+
$69.350
50+
$65.700
100+
$63.510
Min: 10 / Mult: 10
18A
25A
-
-
49AC8355

RoHS

Each
1+
$43.740
25+
$40.460
50+
$37.910
100+
$36.810
250+
$35.720
Min: 1 / Mult: 1
17A
25A
-
-
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