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    • Thermal Overload Relays

    Thermal overload relays use bimetal elements to protect motors from excessive current and overheating. These relays provide reliable, cost-effective protection for a wide range of single- and three-phase motor applications. Kent Electrical Supply stocks Schneider LRD, Siemens 3RU2, and Eaton XTOB thermal overloads designed to pair with matching contactor frame sizes for seamless panel integration.

    Common Applications

    • Motor starters

    • Conveyors & material handling

    • Pumps and compressors

    • Fans and blowers

    • HVAC systems

    AEO-Friendly FAQs

    Q: Are thermal overload relays adjustable?
    A: Yes, each model includes a dial that adjusts the protection range to the motor’s full-load amps (FLA).

    Q: Do thermal overload relays offer phase-loss protection?
    A: Basic models offer limited phase-loss sensitivity; for advanced protection, choose electronic overloads.

    • GTK-100∙67
      Quick view

      LG Industrial Systems

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      sku: GTK-100∙67

      GTK-100∙67

      LS GTK-100∙67 Thermal Overload Relay - Class 10 - Adjustable from 54A-80A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $118.33
      $0.00
    • GTK-150∙107
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      LG Industrial Systems

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      sku: GTK-150∙107

      GTK-150∙107

      LS GTK-150∙107 Thermal Overload Relay - Class 10 - Adjustable from 85A-125A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-150∙130
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      LG Industrial Systems

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      sku: GTK-150∙130

      GTK-150∙130

      LS GTK-150∙130 Thermal Overload Relay - Class 10 - Adjustable from 100A-150A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-150∙41
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      LG Industrial Systems

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      sku: GTK-150∙41

      GTK-150∙41

      LS GTK-150∙41 Thermal Overload Relay - Class 10 - Adjustable from 34A-50A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-150∙48
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      LG Industrial Systems

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      sku: GTK-150∙48

      GTK-150∙48

      LS GTK-150∙48 Thermal Overload Relay - Class 10 - Adjustable from 39A-57A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-150∙56
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      LG Industrial Systems

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      sku: GTK-150∙56

      GTK-150∙56

      LS GTK-150∙56 Thermal Overload Relay - Class 10 - Adjustable from 43A-65A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-150∙67
      Quick view

      LG Industrial Systems

      |

      sku: GTK-150∙67

      GTK-150∙67

      LS GTK-150∙67 Thermal Overload Relay - Class 10 - Adjustable from 54A-80A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-150∙80
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      LG Industrial Systems

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      sku: GTK-150∙80

      GTK-150∙80

      LS GTK-150∙80 Thermal Overload Relay - Class 10 - Adjustable from 65A-100A Click here to see a PDF spec file on this LG GTK overload Description- Directly mountable to the contactors with brackets and connectors.* - GT-100 for GMC-100, 125 contactors...

      MSRP: $147.83
      $0.00
    • GTK-22∙0.14
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      LG Industrial Systems

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      sku: GTK-22∙0.14

      GTK-22∙0.14

      LS GTK-22∙0.14 Thermal Overload Relay - Class 10 - Adjustable from 0.1A-0.6A Click here to see a PDF spec file on this LG GTK overload Description- Direct mount on the GM-9, 12, 18, 22 contactors (9, 12, 18, 22A frames)- DIN rail or screw mountable with...

      MSRP: $40.20
      $0.00
    • GTK-22∙0.21
      Quick view

      LG Industrial Systems

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      sku: GTK-22∙0.21

      GTK-22∙0.21

      LS GTK-22∙0.21 Thermal Overload Relay - Class 10 - Adjustable from 0.16A-0.25A Click here to see a PDF spec file on this LG GTK overload Description- Direct mount on the GM-9, 12, 18, 22 contactors (9, 12, 18, 22A frames)- DIN rail or screw mountable...

      MSRP: $40.20
      $0.00
    • GTK-22∙0.33
      Quick view

      LG Industrial Systems

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      sku: GTK-22∙0.33

      GTK-22∙0.33

      LS GTK-22∙0.33 Thermal Overload Relay - Class 10 - Adjustable from 0.25A-0.40A Click here to see a PDF spec file on this LG GTK overload Description- Direct mount on the GM-9, 12, 18, 22 contactors (9, 12, 18, 22A frames)- DIN rail or screw mountable...

      MSRP: $40.20
      $0.00
    • GTK-22∙0.52
      Quick view

      LG Industrial Systems

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      sku: GTK-22∙0.52

      GTK-22∙0.52

      LS GTK-22∙0.52 Thermal Overload Relay - Class 10 - Adjustable from 0.4A-0.63A Click here to see a PDF spec file on this LG GTK overload Description- Direct mount on the GM-9, 12, 18, 22 contactors (9, 12, 18, 22A frames)- DIN rail or screw mountable with...

      MSRP: $40.20
      $0.00
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