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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.

    • Eaton/Moeller ZB32-24 overload relay Eaton/Moeller ZB32-24 front dimensions
      Quick view

      Moeller Electric

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      sku: ZB32-24

      ZB32-24

      Eaton/Moeller ZB32-24 thermal overload relay that is adjustable from 16 to 24 AMPS and mounts to any DILM17, DILM25, or DILM32 3-pole contactor. This 3 phase overload relay comes with manual and automatic reset, phase loss sensitivity and a set of...

      MSRP: $152.00
      $45.98
      Add to Cart
    • Eaton XTOB010BC1 Overload Relay Eaton XTOB010BC1 Dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XT0B010BC1

      XTOB010BC1

      Eaton XT0B010BC1 thermal overload relay adjustable from 6 to 10 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 directly...

      MSRP: $131.42
      $48.07
      Add to Cart
    • WEG RW27-1D3-U008 overload relay WEG RW27-1D3-U008 front dimensions
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      WEG

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      sku: RW27-1D3-U008

      RW27-1D3-U008

      The RW27-1D3-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 from irreparable damage and costly repairs. Class 10...

      MSRP: $50.00
      $32.24
      Add to Cart
    • Eaton/Moeller ZB32-16 overload relay Eaton/Moeller ZB32-16 front dimensions
      Quick view

      Moeller Electric

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      sku: ZB32-16

      ZB32-16

      Eaton/Moeller ZB32-16 thermal overload relay that is adjustable from 10 to 16 AMPS and mounts to any DILM17, DILM25, or DILM32 3-pole contactor. This 3 phase overload relay comes with manual and automatic reset, phase loss sensitivity and a set of...

      MSRP: $152.00
      $45.98
      Add to Cart
    • Eaton XTOB006BC1 Overload Relay Eaton XTOB006BC1 Dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XT0B006BC1

      XTOB006BC1

      Eaton XT0B006BC1 thermal overload relay adjustable from 4 to 6 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 directly...

      MSRP: $131.42
      $48.07
      Add to Cart
    • WEG RW67-2D overload relay WEG RW67-2D front dimensions
      Quick view

      WEG

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      sku: RW67-2D

      RW67-2D

      The RW67-2D is a three phase overload relay with adjustments ranging from 25 up to 80 AMPS (choose specific AMP range above). This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from irreparable...

      MSRP: $94.00
      $60.60
      Choose Options
    • Benshaw SPO-22-5A Overload Relay
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      Benshaw

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      sku: SPO-22-5A

      SPO-22-5A

      Benshaw SPO-22-5A Bimetallic Class 10 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 overload relay comeS with an adjustable dial for...

      MSRP: $48.00
      $26.39
      Add to Cart
    • Eaton/Moeller ZB65-57 overload relay Eaton/Moeller ZB65-57 front dimensions
      Quick view

      Moeller Electric

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      sku: ZB65-57

      ZB65-57

      Eaton/Moeller ZB65-57 thermal overload relay that is adjustable from 40 to 57 AMPS and mounts to any DILM40, DILM50 or DILM65 3-pole contactor. This 3 phase overload relay comes with manual and automatic reset, phase loss sensitivity and a set of...

      MSRP: $260.00
      $97.08
      View Details
    • Eaton XTOB010CC1 Overload Relay Eaton XTOB010CC1 Dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XT0B010CC1

      XTOB010CC1

      Eaton XT0B010CC1 thermal overload relay adjustable from 6 to 10 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 directly...

      MSRP: $180.83
      $52.12
      Add to Cart
    • XTOB065DC1 XTOB065DC1
      Quick view

      Eaton, Cutler Hammer

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      sku: XT0B065DC1

      XTOB065DC1

      Eaton XTOB065DC1 thermal overload relay adjustable from 50 to 65 AMPS with 1 N.O and 1 N.C. auxiliaries, manual and automatic reset and a reset button. These thermal overloads are directly mounted to any Eaton XTCE040D, XTCE050D or XTCE065D 3 pole...

      MSRP: $174.00
      $92.61
      View Details
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