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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 3RU2116-0FB0 thermal overload relay Siemens 3RU2116-0FB0 dimensions
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      Siemens

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      sku: 3RU2116-0FB0

      3RU2116-0FB0

      Siemens 3RU2116-0FB0 3 pole IEC rated thermal overload relay that is adjustable from 0.35 to 0.50 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and...

      MSRP: $72.00
      $51.63
      Add to Cart
    • Siemens 3RU2116-0GB0 thermal overload relay Siemens 3RU2116-0GB0 dimensions
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      Siemens

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      sku: 3RU2116-0GB0

      3RU2116-0GB0

      Siemens 3RU2116-0GB0 3 pole IEC rated thermal overload relay that is adjustable from 0.45 to 0.63 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and...

      MSRP: $72.00
      $51.63
      Add to Cart
    • Siemens 3RU2116-0HB0 thermal overload relay Siemens 3RU2116-0HB0 dimensions
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      Siemens

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      sku: 3RU2116-0HB0

      3RU2116-0HB0

      Siemens 3RU2116-0HB0 3 pole IEC rated thermal overload relay that is adjustable from 0.55 to 0.80 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and...

      MSRP: $72.00
      $51.63
      Add to Cart
    • Siemens 3RU2116-0JB0 thermal overload relay Siemens 3RU2116-0HB0 dimensions
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      Siemens

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      sku: 3RU2116-0JB0

      3RU2116-0JB0

      Siemens 3RU2116-0JB0 3 pole IEC rated thermal overload relay that is adjustable from 0.70 to 1.0 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and...

      MSRP: $72.00
      $51.63
      Add to Cart
    • Siemens 3RU2116-0KB0 thermal overload relay Siemens 3RU2116-0HB0 dimensions
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      Siemens

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      sku: 3RU2116-0KB0

      3RU2116-0KB0

      Siemens 3RU2116-0KB0 3 pole IEC rated thermal overload relay that is adjustable from 0.90 to 1.25 AMPS. This Class 10 overload relay trips in under 10 seconds or less in an over current situation and...

      MSRP: $72.00
      $51.63
      Add to Cart
    • Siemens 3RU2126-4EB0 thermal overload relay Siemens 3RU2126-4EB0 dimensions
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      Siemens

      3RU2126-4EB0

       The Siemens 3RU2126-4EB0 overload relay is adjustable from 27 to 32 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...

      MSRP: $124.00
      $74.79
      Add to Cart
    • Siemens 3RU2136-4JB0 thermal overload relay 3RU2136-4JB0 Side Dimensions
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      Siemens

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      sku: 3RU2136-4JB0

      3RU2136-4JB0

      Siemens 3RU2136-4JB0 thermal overload relay for mounting on Sirius 3RT203 size S2 contactors (3RT2037 and 3RT2038) and is adjustable from 54A-65A. This Class 10 overload (trips in 10 seconds or less)...

      MSRP: $310.00
      $158.24
      Add to Cart
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