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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 RW27-2D3-D125 overload relay WEG RW27-2D3-D125 side
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      WEG

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      sku: RW27-2D3-D125

      RW27-2D3-D125

      The RW27-2D3-D125 is a three phase overload relay that is adjustable from 8 to 12.5 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 RW27-2D3-U040 overload relay WEG RW27-2D3-U040 side
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      WEG

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      sku: RW27-2D3-U040

      RW27-2D3-U040

      The RW27-2D3-U040 is a three phase overload relay that is adjustable from 32 to 40 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: $60.00
      $41.78
      Add to Cart
    • SPO-150-56A SPO-150-56A
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      Benshaw

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      sku: SPO-150-56A

      SPO-150-56A

      Benshaw SPO-150-56A Bimetallic Class 10 3 pole overload with a range from 45 to 65 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 range...

      MSRP: $210.00
      $96.84
      Add to Cart
    • SPO-150-80A SPO-150-80A
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      Benshaw

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      sku: SPO-150-80A

      SPO-150-80A

      Benshaw SPO-150-80A Bimetallic Class 10 3 pole overload with a range from 65 to 100 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
    • SPO-220H-200A
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      Benshaw

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      sku: SPO-220H-200A

      SPO-220H-200A

      Benshaw SPO-220H-200A Bimetallic Class 20 3 pole overload with a range from 160 to 240 AMPS and mounts directly to the RSC-180 and RSC-220 contactors in any coil voltage.  This 3 phase thermal overload relay comes with an adjustable dial for easily...

      $155.45
      Add to Cart
    • Eaton XTOB001CC1 Overload Relay Eaton XTOB001CC1 Dimensions
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      Eaton, Cutler Hammer

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      sku: XT0B001CC1

      XTOB001CC1

      Eaton XT0B001CC1 thermal overload relay adjustable from 0.60 to 1 AMP with 1 N.O and 1 N.C. auxiliaries, manual and automatic reset and phase loss protection. These thermal overloads offer Class 10 tripping (trips in 10 seconds or less) and are directly...

      MSRP: $180.83
      $52.12
      View Details
    • Eaton XTOB001CC1DP overload relay Eaton XTOB001CC1DP dimensions
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      Eaton, Cutler Hammer

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      sku: XTOB001CC1DP

      XTOB001CC1DP

      The Eaton XTOB001CC1DP thermal overload relay is adjustable from 0.60 to 1 AMP, has a manual or automatic reset and mounts to any 3 pole C25D definite purpose contactor from 15 to 40 AMPS.  Each overload relay provides phase loss sensitivity, comes...

      MSRP: $124.00
      $68.99
      Add to Cart
    • Eaton XTOB004CC1DP overload relay Eaton XTOB004CC1DP dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XTOB004CC1DP

      XTOB004CC1DP

      The Eaton XTOB004CC1DP thermal overload relay is adjustable from 2.4 to 4 AMPS, has a manual or automatic reset and mounts to any 3 pole C25D definite purpose contactor from 15 to 40 AMPS.  Each overload relay provides phase loss sensitivity, comes...

      MSRP: $124.00
      $68.99
      Add to Cart
    • Eaton XTOB175GC1 thermal overload relay Eaton XTOB175GC1 front dimensions
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      Eaton, Cutler Hammer

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      sku: XTOB175GC1

      XTOB175GC1

      Eaton XTOB175GC1 thermal overload relay adjustable from 145 to 175 AMPS with 1 N.O and 1 N.C. auxiliaries, manual and automatic reset and phase loss protection. These thermal overloads offer Class 10 tripping (trips in 10 seconds or less) and are...

      MSRP: $742.41
      $252.40
      View Details
    • Eaton XTOBP24CC1 Overload Relay Eaton XTOBP24CC1 Dimensions
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      Eaton, Cutler Hammer

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      sku: XT0BP24CC1

      XTOBP24CC1

      Eaton XT0BP24CC1 thermal overload relay adjustable from 0.16 to 0.24 AMPS with 1 N.O and 1 N.C. auxiliaries, manual and automatic reset and phase loss protection. These thermal overloads offer Class 10 tripping (trips in 10 seconds or less) and are...

      MSRP: $180.83
      $52.12
      Add to Cart
    • Eaton XTOBP40BC1 Overload Relay Eaton XTOBP40BC1 Dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XT0BP40BC1

      XTOBP40BC1

      Eaton XT0BP40BC1 thermal overload relay adjustable from 0.24 to 0.40 AMPS with 1 N.O and 1 N.C. auxiliaries, manual and automatic reset and phase loss protection. These thermal overloads offer Class 10 tripping (trips in 10 seconds or less) and are...

      MSRP: $131.42
      $48.07
      Add to Cart
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