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
Product Range
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21AM3722

RoHS

Each
1+
$116.830
Min: 1 / Mult: 1
20A
25A
RF38 Series
63Y9404

RoHS

Each
1+
$158.560
10+
$150.640
25+
$142.700
50+
$134.780
100+
$126.860
Min: 1 / Mult: 1
20A
24A
-
74R5395

RoHS

Each
1+
$283.240
5+
$252.930
10+
$234.820
25+
$204.350
50+
$183.690
More Pricing...
Min: 1 / Mult: 1
20A
28A
MC Series
74R5393

RoHS

Each
1+
$176.420
5+
$159.490
10+
$157.050
25+
$153.000
50+
$144.940
More Pricing...
Min: 1 / Mult: 1
20A
28A
MC Series
46AM4278
Each
1+
$257.610
10+
$239.310
25+
$223.610
50+
$215.770
100+
$207.930
Min: 1 / Mult: 1
20A
33A
RF82 Series
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