Table of Contents
What Is Low Voltage Current Transformer?
LMZ(J)1-0.66 Protective type current transformer is mainly used for indoor, for rated voltage up to and including 0.66kV, rated frequency 50Hz AC circuit as the electric current and electric energy measurement and relay protection, product adopts casting insulation, adopting bottom fixed installation.
Working Conditions of the Low Voltage Current Transformer
- Installation sites: Indoor
- Ambient temperature : (-5~40)°C
- Ambient humidity: ≤80%
- Altitude: ≤1000m
- Atmospheric conditions: no serious impurity in the atmosphere.
Product Parameters
| Current ratio (A) | Secondary load (VA) - 0.5 class | Secondary load (VA) - 0.5S class | Secondary load (VA) - 0.2 class | Secondary load (VA) - 0.2S class | Cross-core turn number |
|---|---|---|---|---|---|
| 100/5 | 2.5 | 2.5 | 2.5 | 2.5 | 1 |
| 150/5 | 5 | 5 | 5 | 5 | 1 |
| 200/5 | 5 | 5 | 5 | 5 | 1 |
| 250/5 | 5 | 5 | 5 | 5 | 1 |
| 300/5 | 5 | 5 | 5 | 5 | 1 |
| 200/5 | 5 | 5 | 5 | 5 | 1 |
| 300/5 | 5 | 5 | 5 | 5 | 1 |
| 400/5 | 5 | 5 | 5 | 5 | 1 |
| 500/5 | 5 | 5 | 5 | 5 | 1 |
| 600/5 | 5 | 5 | 5 | 5 | 1 |
| 400/5 | 5 | 5 | 5 | 5 | 1 |
| 500/5 | 5 | 5 | 5 | 5 | 1 |
| 600/5 | 5 | 5 | 5 | 5 | 1 |
Why Choose ZHIMING's Low Voltage Current Transformer?
High Measurement Accuracy
The Low Voltage Current Transformer adopts high-precision core material, supporting 0.2S, 0.5S accuracy class. It ensures precise current sampling and metering for power distribution systems.
Wide Current Ratio Coverage
The Low Voltage Current Transformer covers multiple standard current ratios from 100/5 to 600/5, fully adapting to different low-voltage industrial, commercial and building power supply scenarios.
Stable and Durable Performance
Made of high-quality insulating and flame-retardant materials, the Low Voltage Current Transformer features low loss, strong anti-interference ability, and long service life under stable ambient conditions.
Safe Insulation & Compact Structure
The Low Voltage Current Transformer has excellent insulation performance, small size and easy installation. It saves cabinet space and guarantees safe operation of low-voltage electrical equipment.
Strict Environmental Adaptability
The Low Voltage Current Transformer works stably at -5℃ to 40℃, suitable for indoor installation with normal temperature, humidity and atmospheric environment, widely used in low-voltage distribution cabinets.
FAQ
What is a Low Voltage Current Transformer used for?
The Low Voltage Current Transformer is mainly used for current measurement, energy metering and relay protection in low-voltage power distribution systems.
What accuracy classes does your Low Voltage Current Transformer support?
What current ratios are available for the Low Voltage Current Transformer?
The Low Voltage Current Transformer covers common ratios such as 100/5, 150/5, 200/5, 300/5, 400/5, 500/5 and 600/5.
What are the working environment requirements for Low Voltage Current Transformer?
The Low Voltage Current Transformer is suitable for indoor use, ambient temperature -5℃~40℃, altitude within 1000m, humidity ≤80%, and no corrosive impurities in the air.
Is the Low Voltage Current Transformer easy to install?
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Yes, the Low Voltage Current Transformer adopts compact integrated structure, simple wiring and easy mounting in low-voltage distribution cabinets.






