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
  • LC1D115
  • LC1D150
    • Network type
    • AC
    • DC
      • Thermal protection adjustment range
        80-104 A
        [Ui] rated insulation voltage
      • power circuit: 1000 V conforming to IEC 60947-4-1
      • power circuit: 600 V conforming to CSA
      • power circuit: 600 V conforming to UL
        • 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
          • 0.06 A at 440 V DC-13 for signalling circuit
          • 0.12 A at 600 V AC-15 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
              • power circuit: screw clamp terminals 1 cable(s) 4-35 mm² flexible with cable end
              • 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 without cable end
              • power circuit: screw clamp terminals 1 cable(s) 4-50 mm² flexible without cable end
              • power circuit: screw clamp terminals 1 cable(s) 4-50 mm² solid without cable end
                • Tightening torque
                • control circuit: 1.7 N.m - on screw clamp terminals
                • power circuit: 9 N.m - on screw clamp terminals
                  • Depth
                    132 mm
                    Net weight
                    0.9 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
                    • EN 60947-5-1
                    • EN 60947-4-1
                    • CSA C22.2 No 14
                    • IEC 60947-4-1
                    • ATEX D 94/9/CE
                    • UL 508
                    • IEC 60947-5-1
                      • Product certifications
                      • GL
                      • LROS (Lloyds register of shipping)
                      • RINA
                      • GOST
                      • CCC
                      • ATEX INERIS
                      • BV
                      • CSA
                      • UL
                      • DNV
                        • Sustainable offer status
                          Green Premium product
                          REACh free of SVHC
                          Yes
                          EU RoHS Directive
                          Compliant
                          Toxic heavy metal free
                          Yes
                          Mercury free
                          Yes
                          RoHS exemption information
                          Yes
                          China RoHS Regulation
                           Pro-active China RoHS declaration (out of China RoHS legal scope)
                          Environmental Disclosure
                          ENVPEP110101EN
                          Circularity Profile
                          ENVEOLI1101001EN
                          Warranty
                          18 months

                          Documents & downloads

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                          • CAD Files and Packs

                          • Product Brochures

                          • Technical Data Catalogues

                          • Installation Instruction

                          • End of Life Manual

                          • Product Environmental

                          • 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 overload to suit LC1D95U7 need to be 80-104A

                           Part code for the overload LRD3365

                          What overload can be used with an LC1D65AU7?

                          You can use the Everlink range which is LRD313 - LRD365

                          What is the replacement for the old thermal overload relay LR2D3359?

                          The part number is as follows: LRD365

                          What is the reference for the separate mounting kit for LRD4369 overload relay

                          The LRD43xx type of thermal overload relays are directly mounted to the contactors LC1D115 & LC1D150 only. There is no separate mounting kit for the LRD43xx.

                          If a separate mounting is required for the contactors LC1D115 or LC1D150 type, then LRD336xx shall be selected as these range of overload relays have indepentdent mounting and have similar setting range and are of Class 10A.

                          How to use LRD01…35 LRD33•• & LRD43•• and LRD33** as an indepentent relay?

                          The LRD relays has a solid tag to be used with LC1D** contactors. If you are not using LC1D contactors then using the following accessories you can terminate cable directly.

                          For LRD01…35 use the following part: LAD7B106
                          For LRD33•• & LRD43•• (3) use the following part: LA7D3064

                          Is the LR9D5369 overload still available

                           Yes it is

                          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).

                           

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

                          The LAD7B106 fits the LRD01 to LRD35 range.
                           

                          What is the overload for the LR2D Everlink range 23-32 Amps?

                          The correct code is LRD332.

                          Will the LR3D325 overload relay fit a LC1D65G7 contactor?

                          Issue:
                          Will the LC1D65G7 mount to the LR3D325 overload relay?

                          Product Line:
                          IEC contactors and starters

                          Environment:
                          Products sold and used in the United States

                          Cause:
                          Identifying product compatibility

                          Resolution:
                          No, the LR3D325 is a overload relay with Everlink termination and will direct mount only to the LC1D40A to LC1D65A contactors.


                          CTA-ID : 2050461

                          How Can the LC1D50AU7 Contactor be mounted?

                          Two ways -  the LC1D50AU7 can be DIN Rail mounted and Plate mounted.

                          See the attached datasheet for further information.
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