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PDF TA7261 Data sheet ( Hoja de datos )
| Número de pieza | TA7261 | |
| Descripción | Three Phase Current Transformer | |
| Fabricantes | YUANXING | |
| Logotipo |  |
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元星电子
YUANXING
Data Sheet
TA7261 Current Transformer
Three Phase Current Transformer
The TA7261 series of toroidal current transformers are designed for applications where a high over-
current measurement capability is a desirable feature. Typically used in 380VAC or 660VAC protection
circuits, these CTs offer superior step-down transformation to typical microprocessor circuitry signal
levels.
Performance:
Rated Output: mA secondary output
dependent upon the primary to secondary
ratio selected.
Optional: 0.100V to 0.353V @ rated
current.
Specifications:
Frequency: 50 to 400 Hz
Dielectric Resistance: 1,000 M ohms @ 500
Vdc
Isolation Voltage: 2500 VRMS for 1 minute,
0.5mA
Surge withstand potential: 5000V
Secondary burden resistance: ≥ 100k Ohms
Operating Temperature: -25°C to +55º C
(Option: -40°C to +85º C)
Construction:
o PBT or ABS Resin case, UL 94 V-0
flame retardant rating.
o Epoxy encapsulated.
Lead: 26AWG (0.12mm2), RVVP4, 0.6m
(2FT)
RoHS Compliant
Performance Options:
Rated Input (A)
25
50
100
Ratio
1:2000
1:3000
Accuracy
Class
(IEC 60044-1)
0.2, 0.5
Over Current
Multiple
10
8
Over Current
Persistence Time
(seconds)
2
Typical Performance TA7261-100A/ 40mA:
The accuracy of the current transformer is a function of the secondary burden impedance and the
operating range. The lower the secondary burden impedance, the better the accuracy performance. The
typical performance of the TA7261-100A/ 40mA is;
Burden resistance ≤ 15 ohms, Accuracy Class = 0.2, from 5% to 800% of Rated Current
(e.g.100A)
Burden resistance ≤ 25 ohms, Accuracy Class = 0.2, from 5% to 700% of Rated Current
(e.g.100A)
Burden resistance ≤ 50 ohms, Accuracy Class = 0.2, from 5% to 600% of Rated Current
(e.g.100A)
Zibo Yuanxing Electronics Co., LTD
Yifan Road, Science & Technology Industry Park
Zhangdian, Zibo, Shandong Province 255095
P.R.C
Telephone： +86.533.381.8450
FAX： +86.533.381.8724
http://www.yuanxing.net
T.I. Chen Associates LLC.
1101 N. 5th Street
Tacoma, Washington 98403-1610
USA
Telephone: 253.678.2661，
FAX: 206.350.6482
http://www.TIChenAssociates.com
1 of 2
April 2012
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet TA7261.PDF ] | |
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