TU_ wound-primary and TU60PRI current transformers for small currents of 5–600 A and cast units with built-in cable
Country: Spain · Model: TU3BP / TU3BCP / TU3BAP / TU3AP / TU40CP / TU60PRI
The wound-primary TU3BP, TU3BCP, TU3BAP, TU3AP and TU40CP transformers work at small currents from 5 to 600 A, where a feed-through transformer does not give the required accuracy. The item also includes the cast TU60PRI with a Ø62 mm window and a built-in cable. Typical circuits are individual motors, small outgoing lines and auxiliary consumers.
- Models
- TU3BP, TU3BCP, TU3BAP (busbar 4×25 mm), TU3AP, TU40CP (screw terminals); TU60PRI
- Primary current
- 5–600 A (wound-primary TU_)
- Accuracy class
- TU_: 0.5; 1; 0.5S; 0.2S; TU60PRI: 0.5S; 0.2; 0.2S
- Burden
- 2.5–20 VA (depending on model and rating)
Technical specifications
| Models | TU3BP, TU3BCP, TU3BAP (busbar 4×25 mm), TU3AP, TU40CP (screw terminals); TU60PRI |
|---|---|
| Primary current | 5–600 A (wound-primary TU_) |
| Accuracy class | TU_: 0.5; 1; 0.5S; 0.2S; TU60PRI: 0.5S; 0.2; 0.2S |
| Burden | 2.5–20 VA (depending on model and rating) |
| Thermal withstand current | 60 In |
| TU60PRI | cast, window Ø62 mm, 150 % range, built-in cable 6 m (2×1.5 or 2×2.5 mm²) or 10 m (2×2.5 mm²), insulation class A, EN 61869-2 |
| 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); TK-20, TK-40 (with primary winding)
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
TU3BP, TU3BCP and TU3BAP have a primary circuit in the form of a horizontal 4×25 mm busbar, to which the cable is connected directly or through a terminal block; currents are 5–600 A (TU3BAP — 5–400 A), classes 0.5 and 1, with TU3BCP also 0.5S and 0.2S, and a burden of 2.5–20 VA depending on class and rating. TU3AP and TU40CP have horizontal screw terminals, classes 0.5 and 1, and currents from 5 A. The housing is plastic, resin-filled on request, and the thermal withstand current is 60 In. TU60PRI is resin-filled, with a Ø62 mm window, a range extended to 150 %, classes 0.5S, 0.2 and 0.2S, an operating voltage of 720 V AC, insulation class A and compliance with EN 61869-2. The built-in cable of 6 m (2×1.5 or 2×2.5 mm²) or 10 m (2×2.5 mm²) takes the instrument to a distance without intermediate terminal blocks.
How to choose
For small currents up to 600 A, take the wound-primary TU_, because a multi-turn winding keeps accuracy where a feed-through transformer loses it. For meters of class 0.5S or 0.2S, TU3BCP or TU60PRI will do. When the instrument is far from the board, choose TU60PRI with a 6 or 10 m cable. For large currents, look at the plastic TUC_ and TL_ for 50–6000 A.
Request a price and lead time
TU_ wound-primary and TU60PRI current transformers for small currents of 5–600 A and cast units with built-in cable. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What currents are the wound-primary TU_ designed for?
From 5 to 600 A, and TU3BAP for 5–400 A. The primary circuit of TU3BP, TU3BCP and TU3BAP is a horizontal 4×25 mm busbar.
What is the length of the built-in cable of TU60PRI?
6 m (2×1.5 or 2×2.5 mm²) or 10 m (2×2.5 mm²). The window is Ø62 mm and the range is 150 %.
What are the general electrical parameters of these transformers?
720 V, 3 kV AC for 1 min, 50–60 Hz, Fs < 5, overload 1.2 In, dynamic current 2.5 Ith, secondary x/5 A or x/1 A. Insulation class E, class B (130 °C) on request.
Which standards and CE declarations apply to these models?
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. A CE declaration is available for TU60PRI, TU_, TUC_ and TL_.
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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.