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 11RF905 overload relay Lovato 11RF905 dimensions

    11RF905

    Lovato Electric 11RF905 overload relay adjustable from 0.3 to 0.5 AMPS and mounts to any BG06, BG09 or BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

    MSRP: $59.51
    $39.26
    Add to Cart
  • Lovato 11RF9075 overload relay Lovato 11RF9075 dimensions

    11RF9075

    Lovato Electric 11RF9075 overload relay adjustable from 0.45 to 0.75 AMPS and mounts to any BG06, BG09 or BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

    MSRP: $59.51
    $39.26
    Add to Cart
  • Lovato 11RF91 overload relay Lovato 11RF91 dimensions

    11RF91

    Lovato Electric 11RF91 overload relay adjustable from 0.6 to 1 AMP and mounts to any BG06,BG09, BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

    MSRP: $59.51
    $39.26
    Add to Cart
  • Lovato 11RF910 overload relay Lovato 11RF910 dimensions

    11RF910

    Lovato Electric 11RF910 overload relay adjustable from 6 to 10 AMPS and mounts to any BG06, BG09 or BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

    MSRP: $59.51
    $39.26
    Add to Cart
  • Lovato 11RF933 overload relay Lovato 11RF933 dimensions

    11RF933

    Lovato Electric 11RF933 overload relay adjustable from 2 to 3.3 AMPS and mounts to any BG06, BG09 or BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

    MSRP: $59.51
    $39.26
    Add to Cart
  • Lovato 11RF95 overload relay Lovato 11RF95 dimensions

    11RF95

    Lovato Electric 11RF95 overload relay adjustable from 3 to 5 AMPS and mounts to any BG06, BG09 or BG12 miniature 3-pole contactors. This overload relay has phase loss protection (single phase...

    MSRP: $59.51
    $39.26
    Add to Cart
  • Siemens 3RU2116-0AB0 thermal overload relay Siemens 3RU2116-0AB0 dimensions

    3RU2116-0AB0

    Siemens 3RU2116-0AB0 3 pole IEC rated thermal overload relay that is adjustable from 0.11 to 0.16 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 3RU2116-0BB0 thermal overload relay Siemens 3RU2116-0AB0 dimensions

    3RU2116-0BB0

    Siemens 3RU2116-0BB0 3 pole IEC rated thermal overload relay that is adjustable from 0.14 to 0.20 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 3RU2116-0CB0 thermal overload relay Siemens 3RU2116-0CB0 dimensions

    3RU2116-0CB0

    Siemens 3RU2116-0CB0 3 pole IEC rated thermal overload relay that is adjustable from 0.18 to 0.25 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 3RU2116-0DB0 thermal overload relay Siemens 3RU2116-0DB0 dimensions

    3RU2116-0DB0

    Siemens 3RU2116-0DB0 3 pole IEC rated thermal overload relay that is adjustable from 0.22 to 0.32 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 3RU2116-0EB0 thermal overload relay Siemens 3RU2116-0EB0 dimensions

    3RU2116-0EB0

    Siemens 3RU2116-0EB0 3 pole IEC rated thermal overload relay that is adjustable from 0.28 to 0.40 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