LRD21

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

53% Off
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LRD21

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

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SKU
LRD21
Regular Price AED 137.68 Special Price AED 64.86
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12...18A Th Overload Relay
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Thermal overload relay, TeSys LRD, 12...18 A, class 10A

Regular Price AED 137.68 Special Price AED 64.86
53% 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

  • Activity
    PPCTR
  • Pincode Group
    default
  • Part Number
    LRD21
  • 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
  • rated operational voltage limits
    690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
  • 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
  • ambient air temperature for operation
    -20-60 °C without derating conforming to IEC 60947-4-1
  • 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 compatibility
    LC1D32, LC1D18, LC1D25, LC1D38
  • mechanical robustness
    vibrations: 6 Gn conforming to IEC 60068-2-6, shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
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