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TL 78 Series, Wire Lead Current Transformer

TL78 Series

  • Compact size
  • Light weight
  • High sensitivity
  • Non-contact, isolated measurement
  • Five different case sizes
  • Frequency 50 – 400Hz
  • Ideal for electric shock prevention earth leakage breakers and short circuit relays

  Product Series     Dimension mm / inch  
  A     B     C     D     E     F  
  TL78-1     18.7/0.74     7/0.28     21.2/0.83   6.7/0.26     65/2.56     5.0/0.20  
  TL78-2     22/0.87     8/0.31     25/0.98     7.6/0.30     65/2.56     5.0/0.20  
  TL78-3     24/0.94     12/0.47     27/1.06     10.2/0.40   65/2.56     5.0/0.20  
  TL78-4     30/1.18     11/0.43     33/1.30     15.0/0.59   65/2.56     5.0/0.20  
  TL78-5     48/1.89     19.3/0.76   51.5/2.03   19.0/0.75   65/2.56     5.0/0.20  
  Tolerance (mm)     max.     max.     max.     min.     ± 2/0.08     ± 1/0.04  

  Part No  
  Rated Current (Arms)
  Output Voltage(mV) min.
  Overload Characteristics (%) max.
  Temperature Characteristics (%) max.
   Measurement Conditions  
  TL78-1-001     30     8     10     ± 10     Io=11.25 mA RL=1.0k Ω  
  TL78-2-001     30     8     10     ± 10     Io=11.25 mA RL=1.0k Ω  
  TL78-3-001     60     8     10     ± 10     Io=22.50 mA RL=0.3k Ω  
  TL78-4-001     125     8     10     ± 10     Io=22.50 mA RL=0.3k Ω  
  TL78-5-001     200     8     10     ± 10     Io=22.50 mA RL=0.3k Ω