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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.

    • 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 overload relay comes with phase loss...

      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 - Class 10 tripping and push to test trip...

      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 - Class 10 tripping and push to test trip button RMSO...

      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 Automatic reset - Class 10 tripping and push to test trip...

      MSRP: $143.00
      $82.94
      Add to Cart
    • GE RT2E overload relay
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      GE Industrial

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      sku: RT2E

      RT2E

      GE Industrial RT2E 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 30 to 43 AMPS.  This GE overload relay has Class 10...

      $0.00
    • 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 irreparable damage and costly repairs. Class 10...

      MSRP: $94.00
      $60.60
      Add to Cart
    • Eaton XTOB050GC1 thermal overload relay Eaton XTOB050GC1 front dimensions
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      Eaton, Cutler Hammer

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      sku: XTOB050GC1

      XTOB050GC1

      Eaton XTOB050GC1 thermal overload relay adjustable from 35 to 50 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: $432.21
      $142.00
      Add to Cart
    • Eaton XTOBP40CC1 Overload Relay Eaton XTOBP40CC1 Dimensions
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      Eaton, Cutler Hammer

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      sku: XT0BP40CC1

      XTOBP40CC1

      Eaton XT0BP40CC1 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: $180.83
      $52.12
      Add to Cart
    • Eaton XTOM2P4AC1 thermal overload Eaton XTOM2P4AC1 front dimensions
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      Eaton, Cutler Hammer

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      sku: XTOM2P4AC1

      XTOM2P4AC1

      EATON XTOM2P4AC1 thermal overload relay with an adjustable AMP range from 1.6 to 2.4 AMPS. For use with the 3 pole Eaton XTMC9A10 and XTMC9A01 miniature contactors. Each overload comes standard with an automatic or manual reset, push-to-test button and...

      MSRP: $96.00
      $44.78
      Add to Cart
    • Eaton/Moeller ZB32-6 overload relay Eaton/Moeller ZB32-6 front dimensions
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      Moeller Electric

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      sku: ZB32-6

      ZB32-6

      Eaton/Moeller ZB32-6 thermal overload relay that is adjustable from 4 to 6 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 normally...

      MSRP: $152.00
      $45.98
      Add to Cart
    • Eaton/Moeller ZB65-10 overload relay Eaton/Moeller ZB65-10 front dimensions
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      Moeller Electric

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      sku: ZB65-10

      ZB65-10

      Eaton/Moeller ZB65-10 thermal overload relay that is adjustable from 6 to 10 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 normally...

      MSRP: $200.00
      $71.89
      Add to Cart
    • Eaton/Moeller ZB65-75 overload relay Eaton/Moeller ZB65-75 front dimensions
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      Moeller Electric

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      sku: ZB65-75

      ZB65-75

      Eaton/Moeller ZB65-75 thermal overload relay that is adjustable from 65 to 75 AMPS and mounts to any DILM65 3-pole contactor. This 3 phase overload relay comes with manual and automatic reset, phase loss sensitivity and a set of normally open and...

      MSRP: $260.00
      $108.30
      Add to Cart
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