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 RW27-2D3-U004 overload relay WEG RW27-2D3-U004 side

    RW27-2D3-U004

    The RW27-2D3-U004 is a three phase overload relay that is adjustable from 2.8 to 4 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
    $35.83
    Add to Cart
  • WEG RW27-1D3-D028 overload relay WEG RW27-1D3-D028 front dimensions

    RW27-1D3-D028

    The RW27-1D3-D028 is a three phase overload relay that is adjustable from 1.8 to 2.8 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...

    MSRP: $50.00
    $32.24
    Add to Cart
  • WEG RW27-2D3-U010 overload relay WEG RW27-2D3-U010 side

    RW27-2D3-U010

    The RW27-2D3-U010 is a three phase overload relay that is adjustable from 7 to 10 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
    $35.83
    Add to Cart
  • Eaton XTOE005BCS overload relay Eaton XTOE005BCS front dimensions

    Eaton XTOE005BCS

    Eaton XTOE005BCS electronic overload relay that is adjustable from 1 to 5 AMPS and mounts to any frame B contactor from 7 to 15 AMPS. This next generation solid state overload relay provides accurate and reliable motor protection with multiple class...

    MSRP: $162.94
    $130.65
    Add to Cart
  • WEG RW67-2D3-U040 overload relay WEG RW67-2D3-U040 front dimensions

    RW67-2D3-U040

    The RW67-2D3-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 193-1EFGE Overload Relay Allen Bradley 193-1EFGE side label

    193-1EFGE

    Allen-Bradley 193-1EFGE Overload Relay – Advanced Motor Protection for Industrial Applications The Allen-Bradley 193-1EFGE is an advanced electronic overload relay designed to provide precise motor protection in demanding industrial environments...

    MSRP: $178.49
    $161.80
    Add to Cart
  • WEG RW27-1D3-D125 overload relay WEG RW27-1D3-D125 front dimensions

    RW27-1D3-D125

    The RW27-1D3-D125 is a three phase overload relay that is adjustable from 8 to 12.5 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 RW27-2D3-U032 overload relay WEG RW27-2D3-U032 side

    RW27-2D3-U032

    The RW27-2D3-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
    $35.83
    Add to Cart
  • WEG RW67-2D3-U050 overload relay WEG RW67-2D3-U050 front dimensions

    RW67-2D3-U050

    The RW67-2D3-U050 is a three phase overload relay with adjustments from 32 to 50 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
  • Eaton XTOE100DCS overload relay Eaton XTOE045DCS front dimensions

    Eaton XTOE100DCS

    Eaton XTOE100DCS electronic overload relay that is adjustable from 20 to 100 AMPS and mounts to any frame D contactor from 20 to 100 AMPS. This next generation solid state overload relay provides accurate and reliable motor protection with multiple class...

    MSRP: $323.65
    $235.92
    Add to Cart
  • WEG RW27-1D3-D018 overload relay WEG RW27-1D3-D018 front dimensions

    RW27-1D3-D018

    The RW27-1D3-D018 is a three phase overload relay that is adjustable from 1.2 to 1.8 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...

    MSRP: $50.00
    $32.24
    Add to Cart
  • Eaton XTOE020BCS overload relay Eaton XTOE005BCS front dimensions

    Eaton XTOE020BCS

    Eaton XTOE020BCS electronic overload relay that is adjustable from 4 to 20 AMPS and mounts to any frame B contactor from 7 to 15 AMPS. This next generation solid state overload relay provides accurate and reliable motor protection with multiple class...

    MSRP: $162.94
    $130.65
    Add to Cart