TeSys, Electronic Thermal Overload Relay, 3P - 1.6...8 A

TeSys, Electronic Thermal Overload Relay, 3P - 1.6...8 A

TeSys, Electronic Thermal Overload Relay, 3P - 1.6...8 A

Item Number: LR9D08

RRP (Inc. GST)

Product Dimensions

Width icon

Width45 mm

Height icon

Height72.5 mm

Depth icon

Depth79.9 mm

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Qty UoM EAN Colour





Product or component type

electronic thermal overload relay

Product compatibility

  • LC1D12
  • LC1D32
  • LC1D38
  • LC1D09
  • LC1D25
  • LC1D18
    • Sustainable offer status

      Green Premium product


      Mounting support

    • under contactor
    • plate, with specific accessories
    • rail, with specific accessories
      • [Ue] rated operational voltage

      • 690 V for power circuit
      • 660 V for signalling circuit
        • Control type

        • red push-button: stop and manual reset
        • white 2 microswitches: adjustable trip class
        • red knob: automatic reset
        • white dial: full-load current adjustment
          • Connections - terminals

          • control circuit: screw clamp terminals 1 cable 2.5-2.5 mm² - cable stiffness: solid or flexible - without cable end
          • power circuit: screw clamp terminals 1 cable 16-16 mm² - cable stiffness: solid or flexible - without cable end
            • Height

              72.5 mm


              45 mm


              79.9 mm

              Net weight

              0.18 kg


            • UL 60947-4-1
            • IEC 60947-4-1
            • GB 14048.4
            • CSA C22.2
              • Product certifications

              • TÜV
              • CSA
              • cULus
              • CCC
                • IP degree of protection

                • IP20 front face conforming to IEC 60529
                • IP20 front face conforming to VDE 0106
                  • Ambient air temperature for operation

                    -25-70 °C conforming to IEC 60255-8

                    Ambient air temperature for storage

                    -55-80 °C

                    REACh free of SVHC


                    EU RoHS Directive


                    Toxic heavy metal free


                    Mercury free


                    RoHS exemption information


                    China RoHS Regulation

                     Pro-active China RoHS declaration (out of China RoHS legal scope)

                    Environmental Disclosure


                    Circularity Profile



                    Product name

                    TeSys LRD

                    Device short name


                    Relay application

                    motor protection

                    Thermal overload class

                    class 5…30

                    Thermal protection adjustment range

                    1.6-8 A

                    Maximum power consumption in W

                    300 mW

                    [Ui] rated insulation voltage

                  • power circuit: 1000 V
                  • signalling circuit: 690 V
                    • Tripping threshold

                      1.25 In conforming to IEC 60947-4-1

                      Time range

                      1.5...4 min - automatic reset time

                      [Ith] conventional free air thermal current

                      5 A for signalling circuit

                      Associated fuse rating

                    • 5 A gG for signalling circuit
                    • 5 A BS for signalling circuit
                      • [Uimp] rated impulse withstand voltage

                        Phase failure sensitivity

                        phase difference > 40% 3-3 s conforming to IEC 60947-4-1

                        Electromagnetic compatibility

                      • surge withstand: 2 kV common mode conforming to IEC 61000-4-5
                      • resistance to electrostatic discharge: 8 kV conforming to IEC 61000-4-2
                      • immunity to radiated radio-electrical interference: 10 V/m conforming to IEC 61000-4-3
                      • immunity to fast transients: 2 kV conforming to IEC 61000-4-4
                        • Tightening torque

                        • control circuit: 0.8 N.m on screw clamp terminals
                        • power circuit: 3.1 N.m on screw clamp terminals
                          • Operating altitude

                            2000 m without derating

                            Mechanical robustness

                          • vibrations 10...150 Hz: 6 Gn conforming to IEC 60068-2-6
                          • shocks 11 ms: 15 gn conforming to IEC 60068-2-7
                            • Dielectric strength

                              6 kV 50 Hz conforming to IEC 60255-5

                              Package 1 Weight

                              0.209 kg

                              Package 1 Height

                              0.53 dm

                              Package 1 width

                              0.76 dm

                              Package 1 Length

                              0.91 dm


                              The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
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                              Frequently Asked Questions

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                              What are the wiring terminals on the IEC LRD* overload relays?

                              Product Line:
                              Tesys D line Overload Relays
                              The normally closed overload contact are terminals 95 & 96; and the normally open overload contact are terminals 97 & 98.
                              T1 T2 and T3 are the load terminals. 

                              The normally closed control circuit contact will open when there is a fault, this contact is typically used in series with the control circuit. 

                              The normally open trip signal contact closes when a fault occurs which is typically used to control a pilot light, or alarm. 


                              What is the difference between the LA7D305 and LAD7305, remote control reset mechanism by flexible cable?

                              Identifying differences between two similar part numbers.

                              Product Line:
                              IEC contactors and starters

                              Products sold and used in the United States

                              Choosing the correct part number

                              LAD7305 is for use on LRD01 to LRD35 , LR3D01 to LR3D35, and LRD313 to LRD365.
                              LA7D305 is for use on all other relays (except LRD01 to LRD35 and LR3D01 to LR3D35).


                              What is the difference between LAD703 and LA7D03

                              Identifying differences between two similar part numbers

                              Product Line:
                              IEC contactors and starters

                              Products sold and used in the United States

                              Identifying differences between two similar part numbers

                              Both will remotely stop (trip) or electrically reset the overload, however;
                              LAD703 is used on Tesys overload LRD01 through LRD35 and LR3D01 to LR3D35.
                              LA7D03 is used on all other LR*D overload relays other than LRD01 to LRD35 and LR3D01 to LR3D35.


                              Can you remotely reset electronic overloads LR9D?

                              No. You cannot remotely reset LR9D electronic overloads.
                              There is no provision or attachment  to wire external reset button to overload.

                              Is there a LE1M35N705 alternative or can coil be swapped out

                               The part codes you need is LE1D12N7 + LRD06

                              What is the alternative for the PDL Thermal Overload 56T9092 ?

                               The alternative is LRD05 (Note - these are not direct replacements)

                              What is the Din rail terminal block to suit the LRD12?

                              The LAD7B106 fits the LRD01 to LRD35 range.

                              Do we have Type 2 Co-Ordination Chart for the LT47 overload relays?

                              LT47 is not an overload relay but an overcurrent relay, working on a definite time characteristic : current threshold and time based function.

                              We do not have Coordination type 2 tables for LT47.
                              However, LT47 is an overcurrent relay. It performs a motor current measurement through its internal CT. So, LT47 doesn't add impedance to the motor control circuit and the coordination only results from the characteristics of the short circuit protection (fuses or circuit-breaker) and of the contactor. So the coordination tables we publish for LTMR can be used when LT47 is used.

                              Can the LRD01 to LRD35 range be put back to manual from automatic.

                              This LRD range cannot be put back to Manual reset, once the overlaod has been changed from Manual (factory default) to Automatic.

                              Is there a direct replacement for TR2D09307 overload?

                              There is no direct replacement for TR2D09307 but alternative is LRD07 ( will not fit to existing contactor)

                              TeSys LRD thermal overload relays - 1.6...2.5 A - class 10A
                              For more information see:

                              What is the part number of an overload that has a setting of 0.57A?

                              LRD04 has a setting of 0.40A to 0.63A for use with contactors LC1D09 up to LC1D38.
                              For further information, please visit https://www.schneider-electric.com.au/en/product/LRD04/tesys-lrd-thermal-overload-relays---0.4...0.63-a---class-10a/?range=1885-tesys-lrd&node=166389602-thermal-overload-relays