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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.

    • WEG RW27-1D3-C063 overload relay WEG RW27-1D3-C063 front dimensions
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      WEG

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      sku: RW27-1D3-C063

      RW27-1D3-C063

      The RW27-1D3-C063 is a three phase overload relay that is adjustable from 0.43 to 0.63 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor...

      MSRP: $50.00
      $32.24
      Add to Cart
    • WEG RW27-1D3-D008 overload relay WEG RW27-1D3-D008 front dimensions
      Quick view

      WEG

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      sku: RW27-1D3-D008

      RW27-1D3-D008

      The RW27-1D3-D008 is a three phase overload relay that is adjustable from 0.56 to 0.80 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor...

      MSRP: $50.00
      $32.24
      Add to Cart
    • WEG RW27-2D3-C063 overload relay WEG RW27-2D3-C063 side
      Quick view

      WEG

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      sku: RW27-2D3-C063

      RW27-2D3-C063

      The RW27-2D3-C063 is a three phase overload relay that is adjustable from 0.40 to 0.63 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-D004 overload relay WEG RW27-2D3-D004 side
      Quick view

      WEG

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      sku: RW27-2D3-D004

      RW27-2D3-D004

      The RW27-2D3-D004 is a three phase overload relay that is adjustable from 0.28 to 0.40 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-D008 overload relay WEG RW27-2D3-D008 side
      Quick view

      WEG

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      sku: RW27-2D3-D008

      RW27-2D3-D008

      The RW27-2D3-D008 is a three phase overload relay that is adjustable from 0.56 to 0.80 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-D012 overload relay WEG RW27-2D3-D012 side
      Quick view

      WEG

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      sku: RW27-2D3-D012

      RW27-2D3-D012

      The RW27-2D3-D012 is a three phase overload relay that is adjustable from 0.80 to 1.2 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-D028 overload relay WEG RW27-2D3-D028 side
      Quick view

      WEG

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      sku: RW27-2D3-D028

      RW27-2D3-D028

      The RW27-2D3-D028 is a three phase overload relay that is adjustable from 1.8 to 2.8 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
    • Benshaw SPO-22H-5A overload relay
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      Benshaw

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      sku: SPO-22H-5A

      SPO-22H-5A

      Benshaw SPO-22H-5A Bimetallic Class 20 3 pole overload with a range from 4 to 6 AMPS and mounts directly to the RSC-9, RSC-12, RSC-18 and RSC-22 contactor in any coil voltage.  This 3 phase thermal...

      MSRP: $48.00
      $34.19
      Add to Cart
    • Benshaw SPO-40-11A Overload Relay
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      Benshaw

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      sku: SPO-40-11A

      SPO-40-11A

      Benshaw SPO-40-11A Bimetallic Class 10 3 pole overload with a range from 9 to 13 AMPS and mounts directly to the RSC-32 and RSC-40 contactors in any coil voltage.  This 3 phase thermal overload relay...

      MSRP: $55.00
      $33.08
      Add to Cart
    • Benshaw SPO-40-22A Overload Relay
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      Benshaw

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      sku: SPO-40-22A

      SPO-40-22A

      Benshaw SPO-40-22A Bimetallic Class 10 3 pole overload with a range from 18 to 26 AMPS and mounts directly to the RSC-32 and RSC-40 contactors in any coil voltage.  This 3 phase thermal overload...

      MSRP: $34.62
      $0.00
    • Benshaw SPO-40-5A Overload Relay
      Quick view

      Benshaw

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      sku: SPO-40-5A

      SPO-40-5A

      Benshaw SPO-40-5A Bimetallic Class 10 3 pole overload with a range from 4 to 6 AMPS and mounts directly to the RSC-32 and RSC-40 contactors in any coil voltage.  This 3 phase thermal overload relay...

      MSRP: $55.00
      $33.08
      Add to Cart
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