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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.

    • Benshaw RMSO-95-55A overload Benshaw RMSO-95-55A front dimensions
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      sku: RMSO-95-55A

      RMSO-95-55A

      Benshaw RMSO-95-55A thermal overload relay with adjustable trip from 45 to 55 AMPS - Mounts onto the new style BENSHAW RC contactors from 75 AMP (RC-75A) to 100 AMP (RC-100A) - Manual or Automatic reset - Class 10 tripping and push to test trip...

      MSRP: $176.00
      $102.00
      Add to Cart
    • Benshaw RMSO63-55A thermal overload relay RMSO63-55A
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      sku: RMSO63-55A

      RMSO63-55A

      Benshaw RMSO63-55A thermal overload relay with possible adjustments ranging from 45 to 65 AMPS - Mounts onto the new style BENSHAW RC contactors 50 AMP (RC-50A) to 65 AMP (RC-65A) - Manual or Automatic reset - Class 10 tripping and push to test trip...

      MSRP: $143.00
      $82.94
      Add to Cart
    • GE RT1F overload relay
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      GE Industrial

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      sku: RT1F

      RT1F

      GE Industrial RT1F thermal overload relay that is 3 phase, has 1 normally open (N.O.) and 1 normally closed (N.C.) base mounted auxiliary contacts, automatic or manual Reset and is adjustable from 0.65 to 1.1 AMPS.  This GE overload relay has Class...

      MSRP: $110.00
      $77.90
      View Details
    • GE RT1H overload relay
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      GE Industrial

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      sku: RT1H

      RT1H

      GE Industrial RT1H thermal overload relay that is 3 phase, has 1 normally open (N.O.) and 1 normally closed (N.C.) base mounted auxiliary contacts, automatic or manual reset and is adjustable from 1.3 to 1.9 AMPS.  This GE overload relay has Class...

      $0.00
    • WEG RW27-2D3-U017 overload relay WEG RW27-2D3-U017 side
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      WEG

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      sku: RW27-2D3-U017

      RW27-2D3-U017

      The RW27-2D3-U017 is a three phase overload relay that is adjustable from 11 to 17 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from irreparable damage and costly repairs. Class 10...

      MSRP: $50.00
      $35.83
      Add to Cart
    • WEG RW67-2D3-U050 overload relay WEG RW67-2D3-U050 front dimensions
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      WEG

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      sku: RW67-2D3-U050

      RW67-2D3-U050

      The RW67-2D3-U050 is a three phase overload relay with adjustments from 32 to 50 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from irreparable damage and costly repairs. Class 10...

      MSRP: $94.00
      $60.60
      Add to Cart
    • SPO-150-107A SPO-150-107A
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      Benshaw

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      sku: SPO-150-107A

      SPO-150-107A

      Benshaw SPO-150-107A Bimetallic Class 10 3 pole overload with a range from 85 to 125 AMPS and mounts directly to the RSC-150 contactor in any coil voltage.  This 3 phase thermal overload relays come with an adjustable dial for easily setting the...

      MSRP: $210.00
      $96.84
      Add to Cart
    • Siemens 3RU1116-1CB0 thermal overload relay Siemens 3RU1116-1CB0 front dimensions
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      Siemens

      3RU1116-1CB0

      Siemens 3RU1116-1CB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 1.8A to 2.5A and has phase loss protection. The manual or automatic reset feature on this Sirius...

      MSRP: $70.00
      $56.32
      Add to Cart
    • Siemens 3RU1116-1JB0 thermal overload relay Siemens 3RU1116-1JB0 front dimensions
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      Siemens

      3RU1116-1JB0

      Siemens 3RU1116-1JB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 7A to 10A and has phase loss protection. The manual or automatic reset feature on this Sirius series...

      $0.00
    • Siemens 3RU2116-1AB0 thermal overload relay Siemens 3RU2116-1AB0 dimensions
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      Siemens

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      sku: 3RU2116-1AB0

      3RU2116-1AB0

      Siemens 3RU2116-1AB0 3 pole IEC rated thermal overload relay that is adjustable from 1.1 to 1.6 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and has screw terminals for easy installation and removal...

      MSRP: $72.00
      $51.63
      Add to Cart
    • Siemens 3RU2116-4AB0 thermal overload relay Siemens 3RU2116-4AB0 dimensions
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      Siemens

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      sku: 3RU2116-4AB0

      3RU2116-4AB0

      Siemens 3RU2116-4AB0 3 pole IEC rated thermal overload relay that is adjustable from 11 to 16 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and has screw terminals for easy installation and removal...

      MSRP: $72.00
      $51.63
      Add to Cart
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