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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-D028 overload relay WEG RW27-1D3-D028 front dimensions
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      WEG

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      sku: RW27-1D3-D028

      RW27-1D3-D028

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

      MSRP: $50.00
      $32.24
      Add to Cart
    • Benshaw SPO-22-8A5 Overload Relay
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      Benshaw

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      sku: SPO-22-8A5

      SPO-22-8A5

      Benshaw SPO-22-8A5 Bimetallic Class 10 3 pole overload with a range from 7 to 10 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
    • Benshaw SPO-22H-7.5A overload relay
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      Benshaw

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      sku: SPO-22H-7.5A

      SPO-22H-7.5A

      Benshaw SPO-22H-7.5A Bimetallic Class 20 3 pole overload with a range from 6 to 9 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
      $34.19
      Add to Cart
    • Eaton XTOB150GC1 thermal overload relay Eaton XTOB150GC1 front dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XTOB150GC1

      XTOB150GC1

      Eaton XTOB150GC1 thermal overload relay adjustable from 120 to 150 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: $640.97
      $210.62
      Add to Cart
    • Eaton/Moeller ZB12-1 overload relay Eaton/Moeller ZB12-1 front dimensions
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      Moeller Electric

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      sku: ZB12-1

      ZB12-1

      Eaton/Moeller ZB12-1 thermal overload relay that is adjustable from 0.60 to 1 AMP and mounts to any DILM7, DILM9 or DILM12 3-pole contactor. This 3 phase overload relay comes with manual and automatic reset, phase loss sensitivity and a set of normally...

      MSRP: $144.00
      $42.68
      Add to Cart
    • Eaton/Moeller ZB32-0.16 overload relay Eaton/Moeller ZB32-0.16 front dimensions
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      Moeller Electric

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      sku: ZB32-0,16

      ZB32-0,16

      Eaton/Moeller ZB32-0.16 thermal overload relay that is adjustable from 0.10 to 0.16 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
    • Schneider Electric LRD05 overload relay LRD05
      Quick view

      Square D, Telemecanique

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      sku: LRD05

      LRD05

      Schneider Electric LRD05 thermal overload relay adjustable from 0.63 to 1 AMP and directly mounts to any LC1D09 through LC1D32 TeSys contactor. This 3-pole Schneider Electric overload relay has Class 10 protection, phase loss sensitivity and screw...

      MSRP: $60.00
      $40.95
      Add to Cart
    • Benshaw RMSO-95-80A overload Benshaw RMSO-95-80A front dimensions
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      sku: RMSO-95-80A

      RMSO-95-80A

      Benshaw RMSO-95-80A thermal overload relay with adjustable trip from 90 to 100 AMPS - Mounts onto the new style BENSHAW RC contactors from 75 AMP (RC-75A) to 100 AMP (RC-100A) - Manual or Automatic reset - Class 10 tripping and push to test trip...

      MSRP: $176.00
      $102.00
      Add to Cart
    • GE RT1K overload relay
      Quick view

      GE Industrial

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      sku: RT1K

      RT1K

      GE Industrial RT1K 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 2.5 to 4.1 AMPS.  This GE overload relay has Class...

      $0.00
    • WEG RW27-2D3-U010 overload relay WEG RW27-2D3-U010 side
      Quick view

      WEG

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      sku: RW27-2D3-U010

      RW27-2D3-U010

      The RW27-2D3-U010 is a three phase overload relay that is adjustable from 7 to 10 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
    • Benshaw SPO-40H-15A Overload Relay
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      Benshaw

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      sku: SPO-40H-15A

      SPO-40H-15A

      Benshaw SPO-40H-15A Bimetallic Class 20 3 pole overload with a range from 12 to 18 AMPS and mounts directly to the RSC-32 and RSC-40 contactors in any coil voltage.  This 3 phase thermal overload relay comes with an adjustable dial for easily...

      MSRP: $55.00
      $33.08
      Add to Cart
    • Eaton XTOB016CC1DP overload relay Eaton XTOB016CC1DP dimensions
      Quick view

      Eaton, Cutler Hammer

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      sku: XTOB016CC1DP

      XTOB016CC1DP

      The Eaton XTOB016CC1DP thermal overload relay is adjustable from 10 to 16 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
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