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20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT
20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT
20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT
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20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT
20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT
20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT

20mm 300A Ring Core Current Transformer for Control System Mini-Precision CT

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Product Description

📋 Basic Specifications
Model NO.
ECO20300-L79
Phase
Single
Operation Condition
Indoor
Usage
Measurement
Winding Form
Single Layer & Tightly Wound Type
Insulating Medium
Insulating Paper
Installation
Active Type
Magnetic Circuit Structure
Single Stage Type
Voltage Transformation
Electromagnetic Type
Transport Package
80PCS/Box
HS Code
8504500000
🔍 Product Overview

20mm 300A Ring Core Current Transformer for Control System

The ECO20 series are high-precision Current Transformers designed specifically for Electrical Control Units. Featuring a compact design, these CTs offer a cost-effective solution without compromising on performance.

Key Feature: Customized current ratio available to meet specific system requirements.
📊 Technical Parameters
Rated Primary Current (50/60Hz) 300nom (0.01~360A max)
Turn Ratio Np:Ns = 1:3000
Current Ratio 300A / 100mA
Winding D.C. Resistance (20 ºC) 44Ω ± 10%
Accuracy (@RL=10Ω) 0.2%
Phase Error (Rated Range) ≤5'
Operating Temperature -10 ~ 65ºC
Storage Temperature -25 ~ 85ºC
Dielectric Withstanding Voltage 4.0KV / 1mA / 1min
Insulation Resistance DC500V / 100MΩ min
⚙️ Applications
  • Current measurement
  • Monitoring and protection
  • Energy and sub-metering
  • Network equipment
  • Instruments and sensors
  • Control systems
⭐ Advantages
  • Excellent linearity over the whole range
  • Fully RoHS compliant
  • Small size and low cost
  • High dielectric strength
🖼️ Product Gallery
Ring Core Current Transformer View 1
Ring Core Current Transformer View 2
Ring Core Current Transformer View 3
Ring Core Current Transformer View 4
Ring Core Current Transformer View 5
Ring Core Current Transformer View 6
❓ Frequently Asked Questions
1. What is the maximum current capacity of the ECO20300-L79?
The transformer has a nominal rated primary current of 300A, with a maximum capability of up to 360A.
2. What is the accuracy level of this current transformer?
It provides high precision with an accuracy of 0.2% at a rated load of 10Ω.
3. Can the turn ratio be customized for specific applications?
Yes, customized current ratios are available to meet the specific needs of your control system or monitoring equipment.
4. What are the safety and insulation standards?
The unit features a dielectric withstanding voltage (Hi-pot) of 4.0KV/1mA/1min and an insulation resistance of at least 100MΩ at DC500V.
5. Is this product environmentally friendly?
Yes, the ECO20 series is fully RoHS compliant, ensuring it meets international environmental safety standards.
6. What is the recommended operating temperature range?
The device is designed to operate reliably within a temperature range of -10ºC to 65ºC.

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