TU_ Measuring transformers. Primary wound
TU_ current transformers for measurement applications. It is a transformer with primary wound and built-in horizontal bar or screw terminal connection.
The enclosure is made of plastic and can be resin-filled for installation in more hostile environments. Connections can be for cable or terminal block.
TU__ current transformers for measuring instrumentation. It is a transformer with primary winding for low currents. Its enclosure is made of plastic and can be filled with resin for installation in more hostile environments. The connections can be for cable or plate.
Technical details
- Dimensions
- Technical characteristics
- Technical data
- Ratios
Horizontal bar
Model / Bar (mm)
TU3BP / 4×25
TU3BCP / 4×25
TU3BAP / 4×25
Screw terminal
TU3AP
TU40CP
- Primary wound
- For cable or busbar
- Plastic enclosure
- 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 data
- Factor of safety: Fs < 5
- Operating voltage (maximum): 720 V
- Test voltage: 3 kV AC (1min)
- Frequency: 50-60 hz
- Rated thermal short-circuit current: Ith = 60 In for primary winding.
- Rated dynamic current: IDyn = 2,5 x Ith
- Continuous overload: ID = 1.2 x IN
- Operating temperature: -10 ... 50 ºC
- Accuracy: 0.5 - 1 - 3 (0.2s; 0.2 and 0.5s on request)
- Nominal secondary current: /5 or /1A
- Insulation class: Class E // Class B (130 ºC) available
Details of the product ratio table:
