TU_ Current transformers. Wound primary

Categories:
TU_ Current transformers for measurement instrumentation. They are bus-bar transformers for low currents. Their envelope is made of plastic and have the possibility of being filled with resin for installation in more hostile environments. The connections of the primary can be for cable or for busbar.

Connections

Dimensions

Model/ Bus-bar (mm)
TU3BP / 4×25
TU3BCP / 4×25
TU3BAP / 4×25
TU3AP
TU40CP

• Bus-bar
• For low currents
• For cable or bus-bar
• Plastic casing
• Available in resin
• Narrow profile

Standards

  • IEC 60185
  • UNE EN 618691 (IEC 618691)
  • UNE EN 618692 (IEC 618692)
  • VDE 0414
  • IEC60801-3.4
  • DIN 57414
  • BS 3938
  • EN 50081
  • EN 50082
  • IEC61010
  • UL94-V0

General technical specifications.

  • Security factor: Fs < 5
  • Rated voltage (maximum): 720 V
  • Test voltage: 3 kV AC (1min)
  • Frequency: 50 – 60 hz
  • Rated short-time thermal current: Ith = 60 for wound primary
  • Rated dynamic current: IDyn = 2,5 x Ith
  • Continuous overload: ID = 1,2 x In
  • Operating temperature: -10 … 50 ºC
  • Accuracy: 0,5; 1 and 3 (0,2s; 0,5s on request)
  • Rated secondary current: /5 or /1A
  • Insulation class: Class E // Class B (130 ºC) Available

Details of product relationship table:

 

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TU_ Current transformers. Wound primary

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TU_ Current transformers. Wound primary