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 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 3RU1116-0AB0 thermal overload relay Siemens 3RU1116-0AB0 front dimensions

    3RU1116-0AB0

    Siemens 3RU1116-0AB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.11A to 0.16A and has phase loss protection. The...

    $0.00
  • Siemens 3RU1116-0CB0 thermal overload relay Siemens 3RU1116-0CB0 front dimensions

    3RU1116-0CB0

    Siemens 3RU1116-0CB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.18A to 0.25A and has phase loss protection. The...

    $0.00
  • Siemens 3RU1116-0DB0 thermal overload relay Siemens 3RU1116-0DB0 front dimensions

    3RU1116-0DB0

    Siemens 3RU1116-0DB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.22A to 0.32A and has phase loss protection. The...

    $0.00
  • Siemens 3RU1116-0EB0 thermal overload relay Siemens 3RU1116-0EB0 front dimensions

    3RU1116-0EB0

    Siemens 3RU1116-0EB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.28A to 0.40A and has phase loss protection. The...

    $0.00
  • Siemens 3RU1116-0FB0 thermal overload relay Siemens 3RU1116-0FB0 front dimensions

    3RU1116-0FB0

    Siemens 3RU1116-0FB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.35A to 0.50A and has phase loss protection. The...

    $0.00
  • Siemens 3RU1116-0HB0 thermal overload relay Siemens 3RU1116-0HB0 front dimensions

    3RU1116-0HB0

    Siemens 3RU1116-0HB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.55A to 0.80A and has phase loss protection. The...

    $0.00
  • Siemens 3RU1116-0JB0 thermal overload relay Siemens 3RU1116-0JB0 front dimensions

    3RU1116-0JB0

    Siemens 3RU1116-0JB0 class 10 thermal overload relay for direct mounting on size S00 contactors (3RT1015, 3RT1016 and 3RT1017), is adjustable from 0.70A to 1.0A and has phase loss protection. The...

    $0.00