TeSys Deca Thermal Overload Relay, 80-104A, Class 10A
Schneider Electric

Schneider Electric LRD4365 TeSys Deca Thermal Overload Relay, 80-104A, Class 10A

  • MPN: LRD4365
  • PPN: SCH-LRD4365
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    $429.91

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    Spec sheet

    Description

    TeSys LRD thermal overload relay, 104A/1000V, thermal setting range 80-104A, tripping class 10A, for protection of 3-phase motors 45kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector acting also as reset button, a trip test button for simulation of a tripping, a stop button, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D115-D150. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LA7D3064 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).

    Features

    • The TeSys Deca LRD4365 features a wide thermal protection adjustment range of 80 to 104 A, allowing precise calibration to your specific motor’s full-load current (FLC) via an integrated bimetallic adjustment dial. This granular control eliminates unnecessary operational downtime caused by nuisance trips during startup while providing responsive, tight thermal protection under continuous heavy load conditions.
    • Engineered for seamless integration, this differential thermal overload relay mounts directly beneath 3-pole TeSys D contactors—specifically models LC1D115 and LC1D150—using rugged lug clamps. This direct-coupling feature saves critical enclosure space, cuts down assembly and wiring layout times, and guarantees standard-compliant electrical coordination without the need for standalone terminal blocks.
    • Built with integrated phase failure and load unbalance detection, the relay automatically triggers a Class 10A trip if a single phase drops out or an uneven load condition occurs, conforming to IEC 60947-4-1 standards. By quickly disconnecting the circuit before severe winding overheating occurs, it protects high-value 45 kW (at 400V) motors from catastrophic, unrepairable single-phasing burnouts.
    • This unit comes fully equipped with a red manual stop button, a blue reset button that configures easily between manual or automatic reset modes, an integrated trip indicator flag for visual troubleshooting, and a dedicated test button to simulate electrical tripping. Combined with standard built-in 1 NO + 1 NC auxiliary contacts for remote fault signaling, it provides immediate control circuit feedback to your PLC or pilot lights to accelerate troubleshooting routines.
    • The LRD4365 meets demanding global engineering standards with UL 508, CSA C22.2, IEC 60947-4-1, CE, and ATEX certifications, ensuring full code compliance across Canadian and international industrial projects. Additionally, it is certified as a Green Premium product, featuring full RoHS and REACH compliance along with optimized end-of-life recycling potential for sustainability-driven operations.

    Documentation & Downloads

    Specifications

    Key Specifications

    Network Type
    AC || DC
    Relay Application
    motor protection
    Product Name
    TeSys LRD || TeSys Deca
    Range
    TeSys
    Product Compatibility
    LC1D115 || LC1D150
    Thermal Protection Adjustment Range80-104 A
    Product Or Component Typedifferential thermal overload relay
    Thermal Overload Classclass 10A IEC 60947-4-1
    [Ui] Rated Insulation Voltagepower circuit 1000 V IEC 60947-4-1 || power circuit 600 V CSA || power circuit 600 V UL
    Device Short NameLRD

    Complementary

    Network Frequency
    0...400 Hz
    Auxiliary Contact Composition
    1 NO + 1 NC
    Phase Failure Sensitivity
    tripping current 130 % of Ir on two phase, the last one at 0
    Associated Fuse Rating
    4 A gG for signalling circuit || 4 A BS for signalling circuit
    [Uimp] Rated Impulse Withstand Voltage
    6 kV IEC 60947-1
    Tripping Threshold
    1.14 +/- 0.06 Ir IEC 60947-4-1
    Control Type
    red push-button stop || blue push-button reset
    Depth
    132 mm
    [Ith] Conventional Free Air Thermal Current5 A signalling circuit
    Connections - Terminalspower circuit screw clamp terminals 1 4-35 mm² flexible with cable end || 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 without cable end || power circuit screw clamp terminals 1 4-50 mm² flexible without cable end || power circuit screw clamp terminals 1 4-50 mm² solid without cable end
    [Ue] Rated Operational Voltage1000 V AC 0...400 Hz power circuit IEC 60947-4-1
    Net Weight0.9 kg
    Permissible Current0.06 A 440 V DC-13 signalling circuit || 0.12 A 600 V AC-15 signalling circuit
    Tightening Torquecontrol circuit 1.7 N.m screw clamp terminals || power circuit 9 N.m screw clamp terminals
    Mounting Supportplate, with specific accessories || rail, with specific accessories || under contactor
    Temperature Compensation-20-60 °C

    Environment

    Product Certifications
    IEC || UL || CSA || CCC || EAC || ATEX INERIS
    Standards
    EN/IEC 60947-4-1 || EN/IEC 60947-5-1 || UL 60947-4-1 || UL 60947-5-1 || CSA C22.2 No 60947-4-1 || CSA C22.2 No 60947-5-1 || GB/T 14048.4 || GB/T 14048.5 || EN 50495
    Ambient Air Temperature For Operation
    -20-60 °C without derating IEC 60947-4-1
    Ip Degree Of Protection
    IP20 IEC 60529
    Ambient Air Temperature For Storage
    -60-70 °C
    Mechanical Robustnessvibrations6 Gn IEC 60068-2-6 || shocks15 Gn for 11 ms IEC 60068-2-7
    Climatic WithstandIACS E10
    Dielectric Strength2.2 kV 50 Hz IEC 60947-1
    Flame RetardanceV1 UL 94

    Contractual warranty

    Warranty
    18 months

    Offer Sustainability

    Rohs Exemption Information
    Yes
    Environmental Disclosure
    ENVPEP110101EN
    Toxic Heavy Metal Free
    Yes
    Reach Free Of Svhc
    Yes
    Circularity Profile
    ENVEOLI1101001
    Mercury FreeYes
    Sustainable Offer StatusGreen Premium product
    Reach RegulationFree of Substances of Very High Concern above the threshold
    China Rohs RegulationPro-active China RoHS declaration (out of China RoHS legal scope)
    Eu Rohs DirectiveCompliant

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