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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.

    • Lovato RF380160 overload relay Lovato RF380160 dimensions
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      Lovato Electric

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      sku: RF380160

      RF380160

      Lovato Electric RF380160 overload relay adjustable from 1 to 1.6 AMPS and mounts to any BF09, BF12, BF18, BF25 or BF32 3-pole contactor. This overload relay has phase loss protection (single phase sensitivity), manual or automatic reset options and screw...

      MSRP: $59.51
      $41.61
      Add to Cart
    • RMSO32-11A RMSO32-11A
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      sku: RMSO32-11A

      RMSO32-11A

      Benshaw RMSO32-11A thermal overload relay with adjustable range from 9 to 13 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 RMSO63-42A thermal overload relay RMSO63-42A
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      sku: RMSO63-42A

      RMSO63-42A

      Benshaw RMSO63-42A thermal overload relay with possible adjustments ranging from 34 to 50 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
    • Eaton XTOB1P6CC1 Overload Relay Eaton XTOB1P6CC1 Dimensions
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      Eaton, Cutler Hammer

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      sku: XT0B1P6CC1

      XTOB1P6CC1

      Eaton XT0B1P6CC1 thermal overload relay adjustable from 1.6 to 2.4 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: $180.00
      $52.12
      View Details
    • Siemens 3RU1116-1DB0 thermal overload relay Siemens 3RU1116-1DB0 front dimensions
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      Siemens

      3RU1116-1DB0

      Siemens 3RU1116-1DB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 2.2A to 3.2A and has phase loss protection. The manual or automatic reset feature on this Sirius...

      $0.00
    • Siemens 3RU1116-1HB0 thermal overload relay Siemens 3RU1116-1HB0 front dimensions
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      Siemens

      3RU1116-1HB0

      Siemens 3RU1116-1HB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 5.5A to 8A and has phase loss protection. The manual or automatic reset feature on this Sirius series...

      $0.00
    • Siemens 3RU1126-4BB0 thermal overload relay Siemens 3RU1126-4BB0 front dimensions
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      Siemens

      3RU1126-4BB0

      Siemens 3RU1126-4BB0 class 10 thermal overload relay for direct mounting on size S0 contactors (3RT1023, 3RT1024, 3RT1025 and 3RT1026), is adjustable from 14A to 20A and has phase loss protection. The manual or automatic reset feature on this...

      $0.00
    • Siemens 3RU1146-4JB0 thermal overload relay
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      Siemens

      3RU1146-4JB0

      Siemens 3RU1146-4JB0 class 10 thermal overload relay for direct mounting on size S3 contactors (3RT1044, 3RT1045, and 3RT1046), is adjustable from 45A to 63A and has phase loss protection. The manual or automatic reset feature on this Sirius...

      $0.00
    • Siemens 3RU1146-4KB0 thermal overload relay
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      Siemens

      3RU1146-4KB0

      Siemens 3RU1146-4KB0 class 10 thermal overload relay for direct mounting on size S3 contactors (3RT1044, 3RT1045, and 3RT1046), is adjustable from 57A to 75A and has phase loss protection. The manual or automatic reset feature on this Sirius...

      $0.00
    • RMSO32-1.3A RMSO32-1.3A
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      sku: RMSO32-1.3A

      RMSO32-1.3A

      Benshaw RMSO32-1.3A thermal overload relay with adjustable range from 1 to 1.6 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
    • RMSO32-2.1A RMSO32-2.1A
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      sku: RMSO32-2.1A

      RMSO32-2.1A

      Benshaw RMSO32-2.1A thermal overload relay with adjustable range from 1.6 to 2.5 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
    • 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 from irreparable damage and costly repairs. Class...

      MSRP: $50.00
      $32.24
      Add to Cart
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