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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-D012 overload relay WEG RW27-1D3-D012 front dimensions
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      WEG

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      sku: RW27-1D3-D012

      RW27-1D3-D012

      The RW27-1D3-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
      $32.24
      Add to Cart
    • WEG RW27-1D3-U015 overload relay WEG RW27-1D3-U015 front dimensions
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      WEG

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      sku: RW27-1D3-U015

      RW27-1D3-U015

      The RW27-1D3-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
      $32.24
      Add to Cart
    • Lovato 11RF975 overload relay Lovato 11RF975 dimensions
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      Lovato Electric

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      sku: 11RF975

      11RF975

      Lovato Electric 11RF975 overload relay adjustable from 4.5 to 7.5 AMPS and mounts to any BG06, BG09 or BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

      MSRP: $55.00
      $39.26
      Add to Cart
    • Siemens 3RU2126-1FB0 thermal overload relay Siemens 3RU2126-1FB0 dimensions
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      Siemens

      3RU2126-1FB0

       The Siemens 3RU2126-1FB0 overload relay is adjustable from 3.5 to 5 AMPS, has a manual or automatic reset option and mounts to any 3RT2 size 0 contactor from 9 to 38 AMPS.  This UL rated thermal...

      MSRP: $86.00
      $55.46
      Add to Cart
    • Siemens 3RU2126-4NB0 thermal overload relay Siemens 3RU2126-4NB0 dimensions
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      Siemens

      3RU2126-4NB0

       The Siemens 3RU2126-4NB0 overload relay is adjustable from 23 to 28 AMPS, has a manual or automatic reset option and mounts to any 3RT2 size 0 contactor from 9 to 38 AMPS.  This UL rated thermal...

      MSRP: $124.00
      $74.79
      Add to Cart
    • RMSO32-27A RMSO32-27A
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      sku: RMSO32-27A

      RMSO32-27A

      Benshaw RMSO32-27A thermal overload relay with adjustable range from 22 to 32 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
    • RMSO32-6.5A RMSO32-6.5A
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      sku: RMSO32-6.5A

      RMSO32-6.5A

      Benshaw RMSO32-6.5A thermal overload relay with adjustable range from 5 to 8 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
    • Benshaw RMSO63-30A thermal overload relay RMSO63-30A
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      sku: RMSO63-30A

      RMSO63-30A

      Benshaw RMSO63-30A thermal overload relay with possible adjustments ranging from 24 to 36 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
    • WEG RW67-2D3-U063 overload relay WEG RW67-2D3-U063 front dimensions
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      WEG

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      sku: RW67-2D3-U063

      RW67-2D3-U063

      The RW67-2D3-U063 is a three phase overload relay with adjustments from 50 to 63 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
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