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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...

      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...

      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...

      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...

      $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...

      MSRP: $50.00
      $35.83
      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...

      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...

      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...

      $0.00
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