What Is Low Voltage Current Transformer?
Working Conditions of the Low Voltage Current Transformer
- Installation Site: Designed for indoor installation
- Ambient Temperature: The applicable temperature range is -5℃ to 40℃
- Ambient Humidity: The relative ambient humidity shall not exceed 80%
- Altitude Condition: Applicable for working altitude ≤1000m
- -Atmospheric Requirement: The surrounding atmosphere shall be clean without corrosive, conductive and serious polluting impurities, to avoid corrosion of transformer shell and internal coil.
Product Parameters
| Product chart | Current ratio (A) | ||||
| Class 0.5 | Class 0.5S | Class 0.2 | Class 0.2S | ||
| 30 | 100/5 | 2.5 | 2.5 | 2.5 | 2.5 |
| 150/5 | 5 | 5 | 5 | 5 | |
| 200/5 | 5 | 5 | 5 | 5 | |
| 250/5 | 5 | 5 | 5 | 5 | |
| 300/5 | 5 | 5 | 5 | 5 | |
| 40 | 200/5 | 5 | 5 | 5 | 5 |
| 300/5 | 5 | 5 | 5 | 5 | |
| 400/5 | 5 | 5 | 5 | 5 | |
| 500/5 | 5 | 5 | 5 | 5 | |
| 600/5 | 5 | 5 | 5 | 5 | |
| 50 | 400/5 | 5 | 5 | 5 | 5 |
| 500/5 | 5 | 5 | 5 | 5 | |
| 600/5 | 5 | 5 | 5 | 5 | |
| 60 | 500/5 | 5 | 5 | 5 | 5 |
| 600/5 | 5 | 5 | 5 | 5 | |
| 800/5 | 10 | 10 | 10 | 10 | |
| 1000/5 | 10 | 10 | 10 | 10 | |
| 80 | 750/5 | 10 | 10 | 10 | 10 |
| 800/5 | 10 | 10 | 10 | 10 | |
| 1000/5 | 10 | 10 | 10 | 10 | |
| 1200/5 | 10 | 10 | 10 | 10 | |
| 1500/5 | 10 | 10 | 10 | 10 | |
| 100 | 750/5 | 10 | 10 | 10 | 10 |
| 800/5 | 10 | 10 | 10 | 10 | |
| 1000/5 | 10 | 10 | 10 | 10 | |
| 1200/5 | 10 | 10 | 10 | 10 | |
| 1500/5 | 10 | 10 | 10 | 10 | |
| 2000/5 | 10 | 10 | 10 | 10 | |
| 125 | 1500/5 | 10 | 10 | 10 | 10 |
| 2000/5 | 10 | 10 | 10 | 10 | |
| 2500/5 | 15 | 15 | 15 | 15 | |
| 3000/5 | 20 | 20 | 20 | 20 | |
| 140 | 3000/5 | 20 | 20 | 20 | 20 |
| 4000/5 | 30 | 30 | 30 | 30 | |
| 5000/5 | 40 | 40 | 40 | 40 | |
| 6000/5 | 40 | 40 | 40 | 40 | |
Why Choose ZHIMING's Low Voltage Current Transformer?
High Measurement Accuracy with Multiple Precision Grades
This series of low voltage current transformers is equipped with four mainstream precision grades: Class 0.2, 0.2S, 0.5 and 0.5S. It can meet the metering demands of different scenarios from ordinary industrial monitoring to high-precision electric energy measurement.
Excellent Insulation & Durable Structural Design
Adopting integral casting insulation process, the product has good compression resistance, corrosion resistance and insulation performance. The sealed structure effectively isolates dust and moisture, reduces internal component aging rate, and adapts to long-term continuous operation in indoor power distribution environments.
Complete Current Ratio & Wide Application Range
The low voltage current transformer covers abundant current ratio specifications, ranging from 100/5A to 6000/5A. The secondary load is graded into 2.5VA, 5VA, 10VA, 15VA, 20VA, 30VA and 40VA according to different calibers.
High Safety & Stable Operational Performance
Complying with IEC 61869 international standard, the product has standardized electrical performance. It realizes electrical isolation between primary high-current circuit and secondary measuring equipment, effectively preventing high current from damaging measuring instruments and avoiding electric leakage risks.
Simple Installation & Low Maintenance Cost
The compact integrated structure and bottom fixed mounting design simplify the installation steps without complex auxiliary accessories. The casting insulation shell is wear-resistant and anti-aging, free of frequent maintenance.






