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High Precision Current Transformers Image 1

High Precision Current Transformers

Applications

  • For applications that require exceptional accuracy

Features

  • Low cost
  • Various sizes
  • Non-symmetrical mounting pattern
Download Datasheet

Download Datasheet

  • Rated input current
    1A, 5A, 10A, 20A, 50A, 100A
  • Rated output current
    1mA, 2mA, 2.5mA, 5mA, 10mA, 20mA, 50mA
  • Rated load resistance
    10Ω, 20Ω, 50Ω
  • Frequency
    50Hz to 5kHz
  • Accuracy class
    current transformers class 0.01 or 0.02 (as defined in IEC 60044-1 Part 1)
  • Operating temperature
    -25 to +55℃ / (optional) -40 to +85℃
  • Isolation current
    2500V for 1 minute
  • Dielectric resistance
    1000MΩ @ 500 Vdc
  • Surge withstand
    5000V
  • Case material
    PBT (UL flame retardant rating 94-V0)
  • Interior insulation material
    epoxy
  • Environment
    RoHS compliant

Product Overview

YuanXing’s High Precision Current Transformers deliver exceptional measurement accuracy, achieving class 0.01 and 0.02 per IEC 60044-1. Supporting rated inputs from 1A to 100A and frequencies up to 5kHz, these sensors feature 2500V isolation and 5000V surge withstand. Encapsulated in UL94-V0 PBT resin with epoxy insulation, they ensure durability in industrial environments. Available in PCB or bolt-on mounting, these low-cost components are ideal for precision power monitoring and metering systems. The non-symmetrical mounting pattern ensures extreme precision.

Image Part Number Rated Input Current (A) Ratio Secondary Burden Resistance (Ω) Accuracy Class Dimension (mm) Mounting
TA23B71 5 / 10 / 20 1000:1 / 2000:1 ≤50 0.02 / 0.05 ID-L-W-H
6.0-26.0-22.0-27.0 		Soldering
TA3371 5 / 10 / 20 1000:1 / 2000:1 ≤50 0.02 / 0.05 ID-L-W-H
7.0-28.0-28.0-22.0 		Soldering
TA23A71 5 / 10 / 20 1000:1 / 2000:1 ≤50 0.02 / 0.05 ID-L-W-H
6.0-34.0-22.0-36.0 		Soldering
TA25F71 5 / 10 / 20 / 40 / 60 1000:1 / 2000:1 ≤50 0.02 / 0.05 ID-L-W-H
15.0-58.0-23.0-45.0 		Screw
TA25B71 5 / 10 / 20 / 40 / 80 1000:1 / 2000:1 / 3000:1 ≤100 0.02 / 0.05 ID-L-W-H
11.5-53.0-27.0-46.0 		Screw
TA5571 5 / 10 / 20 / 40 / 80 1000:1 / 2000:1 / 3000:1 / 4000:1 ≤100 0.02 / 0.05 ID-OD-H
12.7-65.0-35.0 		N/A
TA25E71 5 / 10 / 20 / 40 / 80 1000:1 / 2000:1 / 3000:1 ≤100 0.02 / 0.05 ID-L-W-H
12.7-50.0-38.0-55.0 		Screw
Image Part Number Rated Input Current (A) Ratio Secondary Burden Resistance (Ω) Accuracy Class Dimension (mm) Mounting
TA23B71 1.5 / 5 / 6 1000:1 / 2000:1 ≤50 0.02 / 0.05 L-W-H
25.0-21.5-26.0 		Soldering
TA5671 1 / 2 / 5 / 10 1000:1 / 2000:1 ≤100 0.02 / 0.05 OD-H
45.0-35.0 		Soldering
TA54A71 1 / 2 / 5 / 10 1000:1 / 2000:1 ≤100 0.02 / 0.05 OD-H
40.0-31.0 		Soldering
TA63E71 1 / 2 / 5 / 10 / 20 1000:1 / 2000:1 / 3000:1 ≤100 0.02 / 0.05 OD-H
40.0-33.5 		Screw
TA5571 1 / 2 / 5 / 10 / 20 1000:1 / 2000:1 / 3000:1 ≤100 0.02 / 0.05 ID-OD-H
12.7-65.0-35.0 		N/A
TA25E71 1 / 2 / 5 / 10 / 20 1000:1 / 2000:1 / 3000:1 / 4000:1 ≤100 0.02 / 0.05 L-W-H
50.0-38.0-55.0 		Screw

Frequently Asked Questions

Current transformers/sensors, voltage transformers/sensors, and Rogowski coils from Yuanxing are widely adopted across the following industries:
Electric Power Grids, Renewable Energy, Rail Transit, Industrial Automation & Motor Control, Aerospace, Data Centers, Telecommunications.

Yes. Our in-house R&D and engineering teams can support customized current/voltage transformers, Rogowski coil and current/voltage sensor designs, including special ratios, form factors, output signals, and mounting requirements.

Yes. We can supply detailed product specifications, datasheets, and wiring/application notes for each standard or customized configuration.

Yes. With over 20 years of export experience, we serve customers worldwide and provide full sales and logistics support for both small-quantity orders and large-volume projects.

Please submit an inquiry via email or our online contact form. For selected products, we can provide free samples; shipping will be arranged using your courier account (e.g., DHL / FedEx / UPS).