Schneider Electric

Schneider Electric LRD22 TeSys Deca Thermal Overload Relay 16-24A 1NO+1NC Class 10A

  • MPN: LRD22
  • PPN: SCH-LRD22
  • UNSPSC: 39122330
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    $144.88

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    Spec sheet

    Description

    TeSys LRD overload relays are designed to be used with TeSys D contactors to make a motor starter. This overload relay can be used with 9 amp through 38 amp TeSys D contactors. These differential thermal overload relays detect over currents in the lines to the motor. When an overcurrent is detected the overload relay working with the contactor will disconnect the power to the motor. This will minimize the damage to the motor windings. This overload relay has an adjustable trip current rating of 16 to 24 amperes. This trip current rating is calibrated per Class 10A. Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine).

    Features

    • The LRD22 is a TeSys Deca differential thermal overload relay designed to protect AC motors against overloads and phase failures. It monitors the current drawn by the motor and, if it exceeds the set threshold for a specific period, it trips the associated contactor to cut power, preventing permanent insulation damage and motor burnout.
    • The LRD22 features a precise adjustment dial ranging from 16 to 24 Amps. This allows you to match the protection exactly to your motor's Full Load Amps (FLA) as listed on its nameplate. It provides Class 10 protection, meaning it will trip within 10 seconds at six times the rated current perfect for standard industrial startups.
    • This relay is specifically engineered to detect phase unbalance or phase loss. If one phase fails (single-phasing), the internal differential mechanism detects the discrepancy and trips the motor faster than a standard overload relay. This is critical because a motor running on two phases will quickly overheat and fail.
    • The unit is equipped with 1 NO (Normally Open) + 1 NC (Normally Closed) auxiliary contacts. In a typical control circuit, the NC contact is wired to the contactor coil to stop the motor on a fault, while the NO contact is used to trigger a fault light or send a signal to a PLC for remote diagnostics.
    • The LRD22 features a blue selector lever that lets you choose between Manual or Automatic reset modes. Manual reset is standard for safety, requiring a technician to check the machine before restarting. It also includes an integrated "Test" button to simulate a trip and a "Stop" button to manually break the control circuit.

    Documentation & Downloads

    Specifications

    Key Specifications

    Country of OriginFrance, United States
    Depth70 mm
    Weight124 g

    Complementary Attributes

    Ui Rated Insulation Voltagepower circuit 600 V CSA, power circuit 600 V ULpower circuit 690 V IEC 60947-4-1
    Uimp Rated Impulse Withstand Voltage6 kV
    Ue Rated Operational Voltage690 V AC 0...400 Hz power circuit IEC 60947-4-1

    Important Information Attributes

    Persona Type IdsEU, LC, OM, OM8, PB, SC
    Market Segmentation IdCOMMERCIAL, INDUSTRIAL
    Associated Fuse Rating4 A gG for signalling circuit, 4 A BS for signalling circuit
    Mounting Supportplate, with specific accessories, rail, with specific accessories, under contactor
    Permissible Current1.5 A 240 V AC-15 signalling circuit, 0.1 A 250 V DC-13 signalling circuit
    RangeTeSys, TeSys Deca
    Connections Terminalspower circuit screw clamp terminals 1 1-6 mm² flexible with cable end, power circuit screw clamp terminals 1 1.5-10 mm² solid, control circuit screw clamp terminals 2 1-2.5 mm² flexible without cable end, control circuit screw clamp terminals 2 1-2.5 mm² flexible with cable end, control circuit screw clamp terminals 2 1-2.5 mm² solid, power circuit screw clamp terminals 1 1.5-10 mm² flexible without cable end
    Carbon Footprint Of The Distribution Phase A40.024163479198025903, 0 kg CO2 eq.
    Carbon Footprint Of The Installation Phase A50 kg CO2 eq., 0.01635889814277638
    Carbon Footprint Of The Use Phase B2 B3 B4 B612 kg CO2 eq., 11.633004615445152
    Local Publishable Date2026-06-27
    Device TypeRelay, Control & Measurement - Protection relay
    TraceabilityNo
    Weee ScopeIn
    Scope PerimeterAt least in Europe
    End Of Life Doc RefENVEOLI0802006
    Reach Full Compliance Status IdNOT_CONTAINING_SVHC
    Rohs Eur In ScopeYes
    Rohs Eur Conformity Date0627
    China Rohs In ScopeNo
    With Recycled CardboardYes
    Product Contributes To Saved And Avoided EmissionsNo
    Tier1
    Function OptionStandard
    Compatibility CodeLRD
    Device Short NameLRD
    Flame RetardanceV1 conforming to UL 94
    Phase Failure Sensitivitytripping current 130 % of Ir on two phase, the last one at 0
    Product Or Component Typedifferential thermal overload relay
    ReturnabilityYes
    Sustainable PackagingNo
    Thermal Protection Adjustment Range16-24 A
    Total Lifecycle Carbon Footprint13 kg CO2 eq.
    Weee LabelThe product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.
    Database Version2023-02
    Height Nominal66 mm
    Nbr. Of Units In Pkg.1
    Ith Conventional Free Air Thermal Current5 A signalling circuit
    Functional Unit DescriptionOther switchgear and controlgear solutions mentioned in the scope (e.g. fuses TC32, all-or-nothing relays TC94, Measuring relays and protection equipment TC95), apply the general rules of PCR and mention in the accompanying report the functional unit, the reference product characteristics, the reference lifetime and the use scenario which are applied consistently with the relevant IEC technical standards.
    Functional Unit Unitunit
    Energy Consumption On Product Lifetime In Kwh28.3824
    Persona Type NamesEnd User, Contractor, Original Equipment Manufacturer, OEM - Control Panelbuilder, Panel Builder, Electrician
    Market SegmentationCommercial, Industrial
    Mechanical Robustnessvibrations6 Gn IEC 60068-2-6, shocks15 Gn for 11 ms IEC 60068-2-7
    Network TypeDC, AC
    Product NameTeSys LRD, TeSys Deca
    Temperature Compensation-20-60 °C, -20-60 °C
    Certificate AgencyIEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS (Lloyds register of shipping), ATEX INERIS, UKCA
    Carbon Footprint Of The End Of Life Phase C1 To C40.21678519324421383, 0.2 kg CO2 eq.
    Carbon Footprint Of The Manufacturing Phase A1 To A31 kg CO2 eq., 1.0267614686619415
    Local Data StatusPublishable
    Return IndicatorY
    ServiceabilityNo
    Service Catalog ItemFinished good
    Weee Product Category5
    Eoli Availability DisplayYes
    Reach Full Compliance StatusFree of Substances of Very High Concern above the threshold
    Reach Compliance DirectiveFree of Substances of Very High Concern above the threshold
    Rohs Eur StatusCompliant
    Rohs Eur Full Compliance StatusCompliant
    China Rohs Label1
    Without Single Use PlasticYes
    Tier Id1
    Function Option IdSTANDARD
    Product Kit IdentifierN
    Control TypeRed push-button stopBlue push-button reset
    Dielectric Strength1.89 kV 50 Hz IEC 60947-1
    Network Frequency0...400 Hz
    Product AvailabilityStock - Normally stocked in distribution facility
    Relay Applicationmotor protection
    Software Versionv6.1
    Thermal Overload Classclass 10A IEC 60947-4-1
    Tightening Torquecontrol circuit 1.7 N.m screw clamp terminalspower circuit 2.5 N.m screw clamp terminals
    Tripping Threshold1.14 +/- 0.06 Ir IEC 60947-4-1
    R Thermal Protection Adj Range16-24 A
    Data Sourceextrapolated product
    Width Nominal45 mm
    Customs Code8536490075
    Warranty In Months18
    Functional Unit Quantity1
    Reference Lifetime In Y20
    Recyclability Potential In %50

    Environment Attributes Main

    China Rohs RegulationProduct out of China RoHS scope , Pro-active China RoHS declaration (out of China RoHS legal scope)
    Ambient Air Temperature For Storage-60-70 °C, -60-70 °C
    Take BackNo
    Recycled Metal Content At Cr Level0 %
    Mercury FreeYes
    Circularity ProfileENVEOLI0802006
    Environmental DisclosureENVPEP0802006EN
    Ip Degree Of ProtectionIP20 conforming to IEC 60529
    Packaging Without Single Use PlasticYes
    Reach RegulationFree of Substances of Very High Concern above the threshold
    Pep Verification Date2025-08-05
    Psr VersionPSR-0005-ed3-EN-2023 06 06
    Ambient Air Temperature For Operation-20-60 °C without derating IEC 60947-4-1, -20-60 °C without derating IEC 60947-4-1, -20-60 °C without derating IEC 60947-4-1-20-60 °C without derating IEC 60947-4-1, -20-60 °C without derating IEC 60947-4-1, -20-60 °C without derating IEC 60947-4-1
    Product CompatibilityLC1D25, LC1D32, LC1D38
    Reach Free ShvcYes
    Toxic Heavy Metal FreeYes
    Carbon Footprint12.917073654692109
    Climatic WithstandIACS E10
    Eu Rohs DirectiveCompliant
    Packaging Made With Recycled CardboardYes
    Reach Free Of SvhcYes
    Pep CodeENVPEP0802006EN
    Pcr VersionPCR-4-ed4-EN-2021 09 06
    Type Of Verification For The PepIndependent internal review

    General Attributes

    Product Or Component Typedifferential thermal overload relay

    ETIM

    ETIM 8EC000106
    ETIM 10EC000106
    ETIM 9EC000106

    Contractual Warranty Attributes

    Warranty Period18 months
    Warranty18 months
    TeSys Deca Thermal Overload Relay 16-24A 1NO+1NC Class 10A
    TeSys Deca Thermal Overload Relay 16-24A 1NO+1NC Class 10A
    TeSys Deca Thermal Overload Relay 16-24A 1NO+1NC Class 10A

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