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FedEx paid priority & FREE delivery orders placed before 5:00PM ET on Friday, May 26th will ship same day (if paid for by CC or PO account in good standing). FedEx/UPS ground & freight orders have a 1:00PM ET cutoff. Orders placed after the Friday cutoff times will ship on Tuesday, May 30th.

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Motor Controls > IEC Overload Relays > Thermal Overload Relays

Thermal IEC Overload Relays

Thermal overload relays for IEC contactors provide reliable and accurate thermally-operated protection from device or component overload or phase loss. Available in various amperage capacities, these bi-metallic relays offer adjustable trip settings for application flexibility.

Electronic Overload Relays

Thermal Overload Relays

Overload Accessories & Heater Packs

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IEC Thermal Overload Relays

Thermal overload relays for IEC contactors create an across-the-line starter and provide reliable and accurate protection from device or component overload. Modern design eliminates heater elements, and instead uses fixed bimetallic elements. These overload relays are designed to mount directly to their brand's series and size of contactor.

For part listings and specifications, go to Shop Now

TK26 Series Overloads for Fuji DUO SC-E series contactors

Overload, phase loss protection
Isolated N.O. and N.C. contacts
Ambient temperature compensation
Trip indicator
Finger protection terminals
Optional base units for separate mounting
IEC-947, UL, CSA, CE

Starting at
$34.00
(TK26E-P10)

Fuji electric motor controls: Contactors / Overload relays

3N Series Overload Relays for Fuji Odyssey series contactors

Overload, phase loss protection
Isolated N.O. and N.C. contacts
Ambient temperature compensation
Trip indicator
Protective terminal covers available
IEC-947, UL, CSA, CE

Starting at
$187.00
(3NK4QL)

WEG RW17 Thermal Overload Relays

The RW17 series adjustable motor overload relays are designed for use with WEG CWC series contactors. These overload relays include (1) N.O. and (1) N.C. contact and attach directly to the compatible contactor.

Class 10A trip class
Adjustable trip current
Phase-loss sensitivity (All phases must be connected - see motor wiring diagrams)
Temperature compensation from -20� to +60�C [-4�F to +140�F]
Hand/Auto/Reset button
IEC 60947, VDE 0660, cULus listed, CE, Marine

Starting at
$20.00
(RW17-1D3-D004)

WEG RW27/67 Thermal Overload Relays

The RW27/67 series adjustable motor overload relays are designed for use with WEG CWB series contactors. These overload relays include (1) N.O. and (1) N.C. isolated auxiliary contacts and attach directly to the compatible contactor. Accessories are available for separate mounting.

Class 10A trip class
Adjustable trip current
3-pole version available
Temperature compensation from -20� to +60�C [-4�F to +140�F]
Phase-loss and current unbalance sensitivity protection
Hand/Auto/Reset button
cULus listed, CE

Starting at
$28.00
(RW27-2D3-D008)

RTD Series Overload Relays for GH15 Contactors

The RTD series adjustable motor overload relays are designed for use with the GH15 Series 45mm, 60mm, 79mm, 110mm, and 145mm contactors. These overload relays include (1) N.O. and (1) N.C. contact and attach directly to the compatible contactor.