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    LRD21

    Thermal overload relay, TeSys LRD, 12...18 A, class 10A

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    LRD21

    Thermal overload relay, TeSys LRD, 12...18 A, class 10A

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    LRD21
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    Regular Price AED 135.28 Special Price AED 98.00
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    Thermal overload relay, TeSys LRD, 12...18 A, class 10A

    Regular Price AED 135.28 Special Price AED 98.00
    28% Off

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    Description

    TeSys LRD thermal overload relay, 18A/690V, thermal setting range 12-18A, tripping class 10A, for protection of 3-phase motors 7.5kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, 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 LC1D18-D38. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD7B106 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).



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    Product details

    • Weight
      147.0 g
    • Package1 Length*Width*Height
      8.8 cm x 7.8 cm x 5.0 cm
    • Country of Manufacturing
      France
    • [Ith] conventional free air thermal current
      5 A for signalling circuit
    • [ue] Rated Operational Voltage
      690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
    • [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
    • [Uimp] rated impulse withstand voltage
      6 kV
    • ambient air temperature for operation
      -20-60 °C without derating conforming to IEC 60947-4-1
    • ambient air temperature for storage
      -60-70 °C
    • associated fuse rating
      4 A gG for signalling circuit, 4 A BS for signalling circuit
    • auxiliary contact composition
      1 NO + 1 NC
    • climatic withstand
      conforming to IACS E10
    • compatibility code
      LRD
    • 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) 1-4 mm² flexible with cable end, power circuit: screw clamp terminals 1 cable(s) 1-6 mm² solid
    • control type
      red push-button: stop, blue push-button: reset
    • depth
      70 mm
    • device short name
      LRD
    • dielectric strength
      1.89 kV at 50 Hz conforming to IEC 60947-1
    • flame retardance
      V1 conforming to UL 94
    • height
      66 mm
    • IP degree of protection
      IP20 conforming to IEC 60529
    • mechanical robustness
      vibrations: 6 Gn conforming to IEC 60068-2-6, shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
    • mounting support
      plate, with specific accessories, rail, with specific accessories, under contactor
    • net weight
      0.124 kg
    • network frequency
      0...400 Hz
    • network type
      AC, DC
    • permissible current
      1.5 A at 240 V AC-15 for signalling circuit, 0.1 A at 250 V DC-13 for signalling circuit
    • phase failure sensitivity
      tripping current 130 % of Ir on two phase, the last one at 0
    • product certifications
      IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, LROS (Lloyds register of shipping), ATEX INERIS, UKCA
    • product compatibility
      LC1D32, LC1D18, LC1D25, LC1D38
    • product or component type
      differential thermal overload relay
    • range
      TeSys, TeSys Deca
    • relay application
      motor protection
    • 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
    • temperature compensation
      -20-60 °C
    • thermal overload class
      class 10A conforming to IEC 60947-4-1
    • thermal protection adjustment range
      12-18 A
    • tightening torque
      control circuit: 1.7 N.m - on screw clamp terminals, power circuit: 2.5 N.m - on screw clamp terminals
    • tripping threshold
      1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
    • width
      45 mm
    more specification
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