LT4730M7A

TeSys LT47 electronic over current relays-automatic- 3...30 A - 200...240 V AC

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LT4730M7A

TeSys LT47 electronic over current relays-automatic- 3...30 A - 200...240 V AC

SKU
LT4730M7A
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TeSys LT47 electronic over current relays-automatic- 3...30 A - 200...240 V AC

Description

TeSys LR47 electronic overcurrent relay, 30A/690V, with automatic reset, to be supplied with 200-240V AC, for protection of motors with a rated current 3-25A. It provides 3 dials to adjust the protection, LOAD (3-30A) for the overcurrent level, O-TIME (0.3-10sec) for the acceptable duration of the overcurrent, R-TIME (1-120sec) for the automatic reset delay. In addition, the device trips when there is a missing phase during more than O-TIME. The device has a reset button, a test/stop button, 2 LED indicators (Run/Trip), 2 auxiliary contacts 1NO+1NC for fault signalling. Settings can be locked by sealing the transparent cover. DIN rail mounting, without power terminals (currents monitored by 2 current transformers crossed by the motor cables). Multi standards certified (IEC, UL, CSA, CCC, EAC), it conforms to RoHS/REACh regulation.

Product details

  • [ui] Rated Insulation Voltage
    power circuit: 600 V AC conforming to CSA
  • [uimp] Rated Impulse Withstand Voltage
    6 kV
  • [us] Rated Supply Voltage
    200...240 V AC
  • Ambient Air Temperature for Operation
    -25-60 °C without derating conforming to IEC 60947-4-1
  • Ambient Air Temperature for Storage
    -30-80 °C
  • Compatibility Code
    LT47
  • Control Type
    automatic: reset
  • Depth
    77.2 mm
  • Device Application
    protection
  • Device Short Name
    LT47
  • Dielectric Strength
    2 kV at 50 Hz conforming to IEC 60255-5
  • Electromagnetic Compatibility
    resistance to electrostatic discharge: 8 kV in open air conforming to IEC 61000-4-2
  • Height
    70.3 mm
  • Ip Degree of Protection
    IP20 conforming to IEC 60529
  • Mechanical Robustness
    shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
  • Mounting Support
    rail
  • Net Weight
    0.192 kg
  • Network Frequency
    50...60 Hz
  • Product Certifications
    UL
  • Product Name
    TeSys LT
  • Product or Component Type
    electronic over current relay
  • Range
    TeSys
  • Range of Product
    TeSys LT electronic over current relays
  • Standards
    IEC 60255-6
  • Tightening Torque
    signalling circuit: 1.7 N.m M3.5
  • Width
    71 mm
  • Connections - Terminals
    signalling circuit: screw clamp terminals 1 1-2.5 mm² - cable stiffness: flexible with cable end
  • [ith] Conventional Free Air Thermal Current
    3 A for signalling circuit
  • Associated Fuse Rating
    3 A gG for signalling circuit
  • Auxiliary Contact Composition
    1 NO + 1 NC
  • Local Signalling
    1 LED (green)
  • Operating Altitude
    2000 m
  • Protective Treatment
    TH conforming to IEC 60068
  • Relay Application
    sensitivity to phase failure
  • Thermal Protection Adjustment Range
    3-30 A
  • Time Range
    1...120 s - control type R-time
  • Tripping Threshold
    3...25 A
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