TU_R / TU_R_ cast slim-profile measuring current transformers, 25–6000 A
Country: Spain · Model: TU_R / TU_R_
The cast TU_R and TU_R_ slim-profile current transformers are rated for primary currents from 25 to 6000 A. The busbar window ranges from 30×20 to 160×80 mm and the cable window from Ø20 to Ø80 mm. They are installed in 0.4 kV incoming and distribution cabinets with tightly packed busbars to feed panel meters, network analyzers and energy meters.
- Primary current
- 25–6000 A (depending on model)
- Accuracy class
- 0.5; 1; 3 (0.2S; 0.2; 0.5S on request); TU_R of class 0.5S has an extended 150 % range
- Busbar window
- from 30×20 to 160×80 mm; TU_R_ from 40×10 to 80×125 mm, versions 100×20, 125×35 (horizontal busbar)
- Cable window
- Ø20–Ø80 mm
Technical specifications
| Primary current | 25–6000 A (depending on model) |
|---|---|
| Accuracy class | 0.5; 1; 3 (0.2S; 0.2; 0.5S on request); TU_R of class 0.5S has an extended 150 % range |
| Busbar window | from 30×20 to 160×80 mm; TU_R_ from 40×10 to 80×125 mm, versions 100×20, 125×35 (horizontal busbar) |
| Cable window | Ø20–Ø80 mm |
| Housing | cast, epoxy/polyurethane resin |
| Versions | window-type (feed-through) and wound primary; with built-in cable |
| Max. operating voltage | 720 V |
| Test voltage | 3 kV AC, 1 min |
| Secondary current | x/5 A, x/1 A |
| Frequency | 50–60 Hz |
| Standards | IEC 61869-1/-2, IEC 60185, IEC 61010 |
Replacement for
T-0.66, TShP-0.66, TOP-0.66, TShL-0.66, TNSh-0.66 (current transformers 0.66 kV, 5–5000 A)
selected by purpose and main parameters, please confirm with the manager
Replacement pages: ТНШ-0,66, ТНШ, ТОП-0,66, ТОП, ТШП-0,66, ТШП
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The housing is filled with resin, so the transformer is mechanically stronger, and the slim profile saves space between busbars. In the TU_R_ series the windows measure 40×10, 37×18, 15×60, 50×80, 60×100 and 80×125 mm (cable Ø25–Ø80). There are also models for 100×20, 20×100, 125×35 and 35×125 mm busbars and versions with a built-in lead cable. For small currents, cast TU3R units with a wound primary and feed-through TUP20R units of class 0.5S are made, with the range extended to 150 %, for 50–2000 A, which matters for metering at low line load. Insulation class E, class B (130 °C) on request.
How to choose
Start with the primary current and the way the conductor is run, because the window size depends on them. For a 100×20 or 125×35 mm busbar, take TU_R_ with a horizontal busbar. The standard accuracy classes are 0.5, 1 and 3, and for metering you order 0.2S, 0.2 or 0.5S. If you need a plastic housing for 50–6000 A, look at TU_, TUC_, TL_ and TU_PS, and for large windows and combined measurement with protection, at TUP_R and TUP50PR.
Request a price and lead time
TU_R / TU_R_ cast slim-profile measuring current transformers, 25–6000 A. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What busbar and cable windows does TU_R_ have?
For busbars there are windows of 40×10, 37×18, 15×60, 50×80, 60×100 and 80×125 mm, and for cable Ø25–Ø80 mm. Some models are designed for 100×20, 20×100, 125×35 and 35×125 mm busbars.
What voltage and frequency are allowed for these transformers?
The maximum operating voltage is 720 V, the test voltage is 3 kV AC for 1 min, and the frequency is 50–60 Hz. The secondary current is x/5 A or x/1 A.
What are the overload and thermal withstand margins?
Continuous overload is 1.2 In, the rated thermal short-time current is 60 In, the dynamic current is 2.5 Ith, and the safety factor is Fs < 5.
Which standards does the series comply with?
IEC 60185, IEC 61010, IEC 61869-1/-2, UNE-EN 61000-6-1 and 61000-6-3, UL94-V0, VDE 0414, DIN 57414 and BS 3938. CE declarations are available for TU30R…TU160R and TU_R_.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.