LRD3361

Schneider Electric TeSys LRD thermal overload relays - 55...70 A - class 10A

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LRD3361

Schneider Electric TeSys LRD thermal overload relays - 55...70 A - class 10A

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LRD3361
Rp ‎ 2.335.500
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Schneider Electric TeSys LRD thermal overload relays - 55...70 A - class 10A

Rp ‎ 2.335.500

Description

TeSys LRD thermal overload relay, 70A/1000V, thermal setting range 55-70A, tripping class 10A, for protection of 3-phase motors 37kW@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 LC1D80-D95. 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).

Product details

  • Activity
    PPCTR
  • Weight (in Kg)
    0.51
  • Net weight
    0.51 kg
  • Product Or Component Type
    differential thermal overload relay
  • Control Type
    red push-button: stop
    blue push-button: reset
  • Tripping Threshold
    1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
  • Network frequency
    0...400 Hz
  • Auxiliary Contact Composition
    1 NO + 1 NC
  • Temperature Compensation
    -20-60 °C
  • Thermal Protection Adjustment Range
    55-70 A
  • [IP] Degree of Protection
    IP20 conforming to IEC 60529
  • Connections Terminals
    power circuit: screw clamp terminals 1 cable(s) 4-35 mm² flexible without cable end
    power circuit: screw clamp terminals 1 cable(s) 4-35 mm² flexible with cable end
    power circuit: screw clamp terminals 1 cable(s) 4-35 mm² solid without 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
  • [Uimp] Rated Impulse Wthstand Voltage
    6 kV conforming to IEC 60947-1
  • phase_failure_sensitivity
    tripping current 130 % of Ir on two phase, the last one at 0
  • Ambient air temperature for operation
    -20-60 °C without derating conforming to IEC 60947-4-1
  • Tightening Torque
    control circuit: 1.7 N.m - on screw clamp terminals
    power circuit: 9 N.m - on screw clamp terminals
  • 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
  • Product Certifications
    IEC
    UL
    CSA
    CCC
    EAC
    ATEX INERIS
    UKCA
  • Mechanical Robustness
    vibrations: 6 Gn conforming to IEC 60068-2-6
    shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
  • [Ith] Conventional Free Air Thermal Current
    5 A for signalling circuit
  • [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
  • Associated Fuse Rating
    4 A gG for signalling circuit
    4 A BS for signalling circuit
  • Mounting support
    plate, with specific accessories
    rail, with specific accessories
    under contactor
  • Flame Retardance
    V1 conforming to UL 94
  • Climatic Withstand
    conforming to IACS E10
  • Product Compatibility
    LC1D95
    LC1D80
  • Relay Application
    motor protection
  • Thermal Overload Class
    class 10A conforming to IEC 60947-4-1
  • Dielectric Strength
    2.2 kV at 50 Hz conforming to IEC 60947-1
  • Permissible Current
    0.72 A at 500 V AC-15 for signalling circuit
    0.06 A at 440 V DC-13 for signalling circuit
  • Device short name
    LRD
  • Depth
    115 mm
  • Ambient air temperature for storage
    -60-70 °C
  • Height
    81 mm
  • width
    70 mm
  • Compatibility code
    LRD
  • Network type
    DC
    AC
  • [Ue] Rated Operational Voltage
    1000 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
  • Brand
    Schneider Electric
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