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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-95-42A overload Benshaw RMSO-95-42A front dimensions
      Quick view

      sku: RMSO-95-42A

      RMSO-95-42A

      Benshaw RMSO-95-42A thermal overload relay with adjustable trip from 34 to 50 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
    • RMSO32-7.5A RMSO32-7.5A
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      sku: RMSO32-7.5A

      RMSO32-7.5A

      Benshaw RMSO32-7.5A thermal overload relay with adjustable range from 6 to 9 AMPS - Mounts onto the new style BENSHAW RC contactors from 9 AMP (RC-9A) to 40 AMP (RC-40A) - Manual or Automatic reset -...

      MSRP: $92.00
      $53.36
      Add to Cart
    • GE RT2D overload relay
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      GE Industrial

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      sku: RT2D

      RT2D

      GE Industrial RT2D 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 24...

      $0.00
    • GE RT2J overload relay
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      GE Industrial

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      sku: RT2J

      RT2J

      GE Industrial RT2J 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 64...

      $0.00
    • WEG RW117-1D3-U080 overload relay
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      WEG

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      sku: RW117-1D3-U080

      RW117-1D3-U080

      The RW117-1D3-U080 is a three phase overload relay with adjustments from 63 to 80 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from...

      MSRP: $192.00
      $96.71
      Add to Cart
    • WEG RW27-2D3-U008 overload relay WEG RW27-2D3-U008 side
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      WEG

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      sku: RW27-2D3-U008

      RW27-2D3-U008

      The RW27-2D3-U008 is a three phase overload relay that is adjustable from 5.6 to 8 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
    • WEG RW27-2D3-U015 overload relay WEG RW27-2D3-U015 side
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      WEG

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      sku: RW27-2D3-U015

      RW27-2D3-U015

      The RW27-2D3-U015 is a three phase overload relay that is adjustable from 10 to 15 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
    • WEG RW67-2D3-U057 overload relay WEG RW67-2D3-U057 front dimensions
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      WEG

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      sku: RW67-2D3-U057

      RW67-2D3-U057

      The RW67-2D3-U057 is a three phase overload relay with adjustments from 40 to 57 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from...

      MSRP: $94.00
      $60.60
      Add to Cart
    • WEG RW67-2D3-U080 overload relay WEG RW67-2D3-U080 front dimensions
      Quick view

      WEG

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      sku: RW67-2D3-U080

      RW67-2D3-U080

      The RW67-2D3-U080 is a three phase overload relay with adjustments from 63 to 80 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from...

      MSRP: $112.00
      $71.52
      Add to Cart
    • SPO-150 SPO-150
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      Benshaw

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      sku: SPO-150

      SPO-150

      Benshaw SPO-150 Bimetallic Class 10 3 pole overload with ranges from 45A-150A (Choose specific range below) and mounts directly to the RSC-150 contactors in any coil voltage.  These 3 phase thermal...

      MSRP: $210.00
      $96.84
      Add to Cart
    • SPO-150-130A SPO-150-130A
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      Benshaw

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      sku: SPO-150-130A

      SPO-150-130A

      Benshaw SPO-150-130A Bimetallic Class 10 3 pole overload with a range from 100 to 150 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
    • Benshaw SPO-22-19A Overload Relay
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      Benshaw

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      sku: SPO-22-19A

      SPO-22-19A

      Benshaw SPO-22-19A Bimetallic Class 10 3 pole overload with a range from 16 to 22 AMPS and mounts directly to the RSC-9, RSC-12, RSC-18 and RSC-22 contactor in any coil voltage.  This 3 phase thermal...

      $0.00
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