Specifications

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Range
TeSys
Product name
TeSys LRD
Product or component type
differential thermal overload relay
Device short name
LRD
Relay application
motor protection
Product compatibility
  • LC1D32
  • LC1D25
  • LC1D38
    • Network type
    • AC
    • DC
      • Thermal overload class
        class 10A
        Thermal protection adjustment range
        23-32 A
        [Ui] rated insulation voltage
      • power circuit: 600 V conforming to CSA
      • power circuit: 600 V conforming to UL
      • power circuit: 690 V conforming to IEC 60947-4-1
        • Network frequency
          0...400 Hz
          Mounting support
        • plate, with specific accessories
        • rail, with specific accessories
        • under contactor
          • Tripping threshold
            1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
            [Ith] conventional free air thermal current
            5 A for signalling circuit
            Permissible current
          • 1.5 A at 240 V AC-15 for signalling circuit
          • 0.1 A at 250 V DC-13 for signalling circuit
            • [Ue] rated operational voltage
              690 V AC 0...400 Hz
              [Uimp] rated impulse withstand voltage
              Phase failure sensitivity
              tripping current 130 % of Ir on two phase, the last one at 0
              Control type
            • red push-button: stop
            • blue push-button: reset
              • Temperature compensation
                -20-60 °C
                Connections - terminals
              • control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible without cable end
              • control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible with cable end
              • control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² solid
              • power circuit: screw clamp terminals 1 cable(s) 1.5-10 mm² flexible without cable end
              • power circuit: screw clamp terminals 1 cable(s) 1-6 mm² flexible with cable end
              • power circuit: screw clamp terminals 1 cable(s) 1.5-10 mm² solid
                • Tightening torque
                • control circuit: 1.7 N.m - on screw clamp terminals
                • power circuit: 2.5 N.m - on screw clamp terminals
                  • Width
                    45 mm
                    Depth
                    70 mm
                    Net weight
                    0.124 kg
                    Compatibility code
                    LRD
                    Protective treatment
                    TH conforming to IEC 60068
                    IP degree of protection
                    IP20 conforming to IEC 60529
                    Ambient air temperature for operation
                    -20-60 °C without derating conforming to IEC 60947-4-1
                    Ambient air temperature for storage
                    -60-70 °C
                    Flame retardance
                    V1 conforming to UL 94
                    Mechanical robustness
                  • vibrations: 6 Gn conforming to IEC 60068-2-6
                  • shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
                    • Dielectric strength
                      6 kV at 50 Hz conforming to IEC 60255-5
                      Standards
                    • IEC 60947-4-1
                    • UL 508
                    • CSA C22.2 No 14
                    • IEC 60947-5-1
                    • ATEX D 94/9/CE
                    • EN 60947-5-1
                    • EN 60947-4-1
                      • Product certifications
                      • CSA
                      • BV
                      • UL
                      • GL
                      • DNV
                      • LROS (Lloyds register of shipping)
                      • GOST
                      • CCC
                      • RINA
                      • ATEX INERIS
                        • Sustainable offer status
                          Green Premium product
                          REACh Regulation
                          Free of Substances of Very High Concern above the threshold
                          REACh free of SVHC
                          Yes
                          EU RoHS Directive
                          Compliant
                          Mercury free
                          Yes
                          RoHS exemption information
                          Yes
                          China RoHS Regulation
                          Product out of China RoHS scope. Substance declaration for your information
                          Environmental Disclosure
                          ENVPEP080206EN
                          Circularity Profile
                          ENVEOLI0802006
                          Warranty
                          18 months

                          Documents & downloads

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                          Filter items
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                          • CAD Files and Packs

                          • Product Brochures

                          • Technical Data Catalogues

                          • Handout

                          • Product Environmental

                          • Installation Instruction

                          • End of Life Manual

                          • Operating Manuals

                          • Certificates (MSDS)

                          • Declaration of Conformity

                          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
                           
                          Resolution:
                          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 Din rail terminal block to suit the LRD12?

                          The LAD7B106 fits the LRD01 to LRD35 range.
                           

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

                          Issue:
                          Identifying differences between two similar part numbers.

                          Product Line:
                          IEC contactors and starters

                          Environment:
                          Products sold and used in the United States

                          Cause:
                          Choosing the correct part number

                          Resolution:
                          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).

                           

                          Alternative Overload for the PDL56T992 (6.0-9.2A)

                          Either go for the LRD12 (5.0-8.0A) or the LRD14 (7.0-10.0A) depending on the size of the motor. This will not fit the old 56 Series DOL starter

                          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.

                          What is the difference between LAD703 and LA7D03

                          Issue:
                          Identifying differences between two similar part numbers

                          Product Line:
                          IEC contactors and starters

                          Environment:
                          Products sold and used in the United States

                          Cause:
                          Identifying differences between two similar part numbers

                          Resolution:
                          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.


                           

                          What overload can be used with an LC1D65AU7?

                          You can use the Everlink range which is LRD313 - LRD365

                          Is there a replacemnet for the old DOL motor starters like LE1D12U7R10?

                          All of the LE1D12U7R** parts have now been Divide into two parts enclosed starter and thermal overload see table for the new part numbers/ format:
                           
                          Old Part Numbers Enclosed Starter Thermal Overload
                          LE1D12U7R10 LE1D12U7S48 plus LRD10
                          LE1D12U7R12 LE1D12U7S48 plus LRD12
                          LE1D12U7R14 LE1D12U7S48 plus LRD14
                          LE1D12U7R16 LE1D12U7S48 plus LRD16

                          For further information please visit https://www.clipsal.com/Trade

                           

                          What D-line overload relays use the LA7D3064 separate mounting kit?

                          Issue
                          What D-line overload relays use the LA7D3064 separate mounting kit?

                          Product Line
                          Overload relay

                          Environment
                          Tesys and Pre Tesys D-line

                          Cause
                          Fit, compatibility, and product features 

                          Resolution
                          The LRD3***   LR3D3**, LR2D35** D-line overload relays.

                          What is the overload to suit LE3D12N7 star delta starter?

                          Overload to suit LE3D12N7 will be either LRD12, LRD14 or LRD16 depending on application.

                          What overload can be used for the LC1D32 contactor @16amps?

                          either the LRD21, 12 to 18 amps.
                          Or the LRD22, 16 to 24 amps.

                          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.
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