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.

  • Allen Bradley 193-1EFFD overload relay Allen Bradley 193-1EFFD side label

    193-1EFFD

    The Allen Bradley 193-1EFFD is a robust electronic overload relay designed to provide precise motor protection in various industrial settings. This relay is adjustable from 20 to 100 AMPS, offering...

    MSRP: $157.34
    $149.13
    Add to Cart
  • Eaton XTOE020CCS overload relay Eaton XTOE020CCS front dimensions

    Eaton XTOE020CCS

    Eaton XTOE020CCS electronic overload relay that is adjustable from 4 to 20 AMPS and mounts to any frame C contactor from 18 to 38 AMPS. This next generation solid state overload relay provides...

    MSRP: $171.87
    $130.65
    Add to Cart
  • WEG RW27-1D3-D063 overload relay WEG RW27-1D3-D063 front dimensions

    RW27-1D3-D063

    The RW27-1D3-D063 is a three phase overload relay that is adjustable from 4 to 6.3 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor...

    MSRP: $50.00
    $32.24
    Add to Cart
  • WEG RW67-1D3-U050 overload relay WEG RW67-1D3-U050 front dimensions

    RW67-1D3-U050

    The RW67-1D3-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...

    MSRP: $94.00
    $60.60
    Add to Cart
  • Eaton C306DN3 overload base Eaton C306DN3 side label

    C306DN3

    Eaton C306DN3 Overload Relay – 32 AMP, 3-Pole, NEMA Size 00/0 Looking for a reliable overload protection solution for your motor control system? The Eaton C306DN3 is a factory-new, 3-pole thermal...

    MSRP: $316.14
    $144.77
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  • Allen Bradley 193-1EFED overload relay Allen Bradley 193-1EFED side label

    193-1EFED

    The Allen Bradley 193-1EFED is an electronic overload that is adjustable from 5.4 to 27 AMPS, has selectable trip class ratings from 10 to 30, and directly mounts to any 100-C30, 100-C37, 100-C43 or...

    MSRP: $157.34
    $149.13
    Add to Cart
  • Eaton XTOE045DCS overload relay Eaton XTOE045DCS front dimensions

    Eaton XTOE045DCS

    Eaton XTOE045DCS electronic overload relay that is adjustable from 9 to 45 AMPS and mounts to any frame D contactor from 40 to 65 AMPS. This next generation solid state overload relay provides...

    MSRP: $255.56
    $186.29
    Add to Cart
  • WEG RW117-1D3-U112 overload relay

    RW117-1D3-U112

    The RW117-1D3-U112 is a three phase overload relay with adjustments from 90 to 112 AMPS. This thermal overload has phase loss protection which trips when a phase is lost thus protecting the motor...

    MSRP: $192.00
    $123.76
    Add to Cart
  • WEG RW27-2D3-U023 overload relay WEG RW27-2D3-U023 side

    RW27-2D3-U023

    The RW27-2D3-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...

    MSRP: $50.00
    $35.83
    Add to Cart
  • Eaton XTOE045CCS overload relay Eaton XTOE020CCS front dimensions

    Eaton XTOE045CCS

    Eaton XTOE045CCS electronic overload relay that is adjustable from 9 to 45 AMPS and mounts to any frame C contactor from 18 to 38 AMPS. This next generation solid state overload relay provides...

    MSRP: $195.30
    $142.37
    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...

    MSRP: $178.49
    $161.80
    Add to Cart
  • Eaton C306GN3 overload base Eaton C306GN3 side label

    C306GN3

    Eaton C306GN3 Overload Relay – NEMA-Rated Motor Protection The Eaton Cutler Hammer C306GN3 is a high-performance overload relay designed for reliable motor protection in industrial applications...

    MSRP: $540.36
    $247.45
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