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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.

    • Benshaw SPO-22-1A3 Overload Relay
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      Benshaw

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      sku: SPO-22-1A3

      SPO-22-1A3

      Benshaw SPO-22-1A3 Bimetallic Class 10 3 pole overload with a range from 1 to 1.6 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...

      $0.00
    • Benshaw SPO-22-3A3 Overload Relay
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      Benshaw

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      sku: SPO-22-3A3

      SPO-22-3A3

      Benshaw SPO-22-3A3 Bimetallic Class 10 3 pole overload with a range from 2.5 to 4 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...

      $0.00
    • Benshaw SPO-22-A14 Overload Relay
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      Benshaw

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      sku: SPO-22-A14

      SPO-22-A14

      Benshaw SPO-22-A14 Bimetallic Class 10 3 pole overload with a range from 0.10 to 0.16 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...

      $0.00
    • Benshaw SPO-22-A21 Overload Relay
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      Benshaw

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      sku: SPO-22-A21

      SPO-22-A21

      Benshaw SPO-22-A21 Bimetallic Class 10 3 pole overload with a range from 0.16 to 0.20 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...

      MSRP: $35.00
      $0.00
    • Benshaw SPO-22-A33 Overload Relay
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      Benshaw

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      sku: SPO-22-A33

      SPO-22-A33

      Benshaw SPO-22-A33 Bimetallic Class 10 3 pole overload with a range from 0.25 to 0.40 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...

      MSRP: $35.00
      $0.00
    • Benshaw SPO-22-A52 Overload Relay
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      Benshaw

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      sku: SPO-22-A52

      SPO-22-A52

      Benshaw SPO-22-A52 Bimetallic Class 10 3 pole overload with a range from 0.40 to 0.63 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...

      MSRP: $35.00
      $0.00
    • Benshaw SPO-22-A82 Overload Relay
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      Benshaw

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      sku: SPO-22-A82

      SPO-22-A82

      Benshaw SPO-22-A82 Bimetallic Class 10 3 pole overload with a range from 0.63 to 1 AMP 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: $35.00
      $0.00
    • Benshaw SPO-22H-2.1A overload relay
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      Benshaw

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      sku: SPO-22H-2.1A

      SPO-22H-2.1A

      Benshaw SPO-22H-2.1A Bimetallic Class 20 3 pole overload with a range from 1.6 to 2.5 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...

      MSRP: $48.00
      $34.19
      Add to Cart
    • Benshaw SPO-22H-5A overload relay
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      Benshaw

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      sku: SPO-22H-5A

      SPO-22H-5A

      Benshaw SPO-22H-5A Bimetallic Class 20 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
      $34.19
      Add to Cart
    • Benshaw SPO-40-11A Overload Relay
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      Benshaw

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      sku: SPO-40-11A

      SPO-40-11A

      Benshaw SPO-40-11A Bimetallic Class 10 3 pole overload with a range from 9 to 13 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 setting...

      MSRP: $55.00
      $33.08
      Add to Cart
    • Benshaw SPO-40-15A Overload Relay
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      Benshaw

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      sku: SPO-40-15A

      SPO-40-15A

      Benshaw SPO-40-15A Bimetallic Class 10 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 setting...

      $0.00
    • Benshaw SPO-40-22A Overload Relay
      Quick view

      Benshaw

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      sku: SPO-40-22A

      SPO-40-22A

      Benshaw SPO-40-22A Bimetallic Class 10 3 pole overload with a range from 18 to 26 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 setting...

      MSRP: $34.62
      $0.00
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