Overload Relays

Overload relays protect motors from overheating and excessive current by interrupting the circuit when abnormal load conditions occur. They are typically installed directly beneath a contactor as part of a motor starter assembly. Kent Electrical Supply provides thermal and electronic overload relays from Schneider (LRD/LRN), Siemens (3RB2), and Eaton (XTOE), covering a full range of motor FLA ratings for pumps, compressors, conveyors, and industrial machines.

Common Applications

  • Motor starter protection

  • HVAC compressors and blower motors

  • Pumps and fans

  • Conveyor and material handling systems

  • Industrial automation

AEO-Friendly FAQs

Q: How do I choose the right overload relay for my motor?
A: Match the overload’s amp range to the motor’s full-load amps and ensure it fits the corresponding contactor frame size.

Q: What’s the difference between thermal and electronic overload relays?
A: Thermal overloads use bimetal elements; electronic overloads provide higher accuracy and better phase-loss protection.

  • WEG RW27-1D overload relay WEG RW67-1D front dimensions

    RW27-1D

    Motor Protection Relay | 0.28-32 Amp Range | Class 10 Trip | Direct Mount to WEG Contactors Product Overview The WEG RW27-1D three-phase thermal overload relay provides comprehensive motor protection with adjustable current settings from 0.28 to 32...

    MSRP: $50.00
    $32.24
    Choose Options
  • WEG RW27-1D3-U032 overload relay WEG RW27-1D3-U032 front dimensions

    RW27-1D3-U032

    The RW27-1D3-U032 is a three phase overload relay that is adjustable from 22 to 32 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 10...

    MSRP: $50.00
    $32.24
    Add to Cart
  • WEG RW67-1D overload relay WEG RW67-1D front dimensions

    RW67-1D

    The RW67-1D is a three phase overload relay with adjustments ranging from 25 up to 50 AMPS (choose specific AMP range above). This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from irreparable...

    MSRP: $94.00
    $60.60
    Choose Options
  • WEG RW27-2D overload relay WEG RW27-2D side

    RW27-2D

    The RW27-2D is a three phase overload relay with adjustments ranging from 0.28 up to 40 AMPS (choose specific AMP range above). This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from irreparable...

    MSRP: $50.00
    $35.83
    Choose Options
  • Allen Bradley 193-1EFEB overload relay Allen Bradley 193-1EFEB side label

    193-1EFEB

    Allen-Bradley 193-1EFEB Overload Relay The Allen-Bradley 193-1EFEB is an electronic overload relay designed for motor protection in industrial applications. It features an adjustable current range from 5.4 to 27.0 amps and offers selectable trip class...

    MSRP: $99.81
    $86.19
    Add to Cart
  • WEG RW67-1D3-U040 overload relay WEG RW67-1D3-U040 front dimensions

    RW67-1D3-U040

    The RW67-1D3-U040 is a three phase overload relay with adjustments from 25 to 40 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 10...

    MSRP: $94.00
    $60.60
    Add to Cart
  • Allen Bradley 193-1EFCB overload relay Allen Bradley 193-1EFCB side label

    193-1EFCB

    The Allen Bradley 193-1EFCB is an electronic overload that is adjustable from 1 to 5 AMPS, has selectable trip class ratings from 10 to 30, and directly mounts to any 100-C09, 100-C12, 100-C16 or 100-C23 3 pole IEC rated contactor.  Each overload...

    MSRP: $99.81
    $86.19
    View Details
  • WEG RW27-1D3-U023 overload relay WEG RW27-1D3-U023 front dimensions

    RW27-1D3-U023

    The RW27-1D3-U023 is a three phase overload relay that is adjustable from 15 to 23 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 10...

    MSRP: $50.00
    $32.24
    Add to Cart
  • WEG RW27-1D3-U017 overload relay WEG RW27-1D3-U017 front dimensions

    RW27-1D3-U017

    The RW27-1D3-U017 is a three phase overload relay that is adjustable from 11 to 17 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 10...

    MSRP: $50.00
    $32.24
    Add to Cart
  • Allen Bradley 193-1EFDB overload relay Allen Bradley 193-1EFDB side label

    193-1EFDB

    The Allen Bradley 193-1EFDB is an electronic overload that is adjustable from 3.2 to 16 AMPS, has selectable trip class ratings from 10 to 30, and directly mounts to any 100-C09, 100-C12, 100-C16 or 100-C23 3 pole IEC rated contactor.  Each overload...

    MSRP: $99.81
    $86.19
    Add to Cart
  • WEG RW27-1D3-U008 overload relay WEG RW27-1D3-U008 front dimensions

    RW27-1D3-U008

    The RW27-1D3-U008 is a three phase overload relay that is adjustable from 5.6 to 8 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 10...

    MSRP: $50.00
    $32.24
    Add to Cart
  • WEG RW67-2D overload relay WEG RW67-2D front dimensions

    RW67-2D

    The RW67-2D is a three phase overload relay with adjustments ranging from 25 up to 80 AMPS (choose specific AMP range above). This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor from irreparable...

    MSRP: $94.00
    $60.60
    Choose Options