CHINT BH-0.66 I Current Transformers are compact busbar-type current transformers designed for current measurement, energy metering and electrical monitoring in low-voltage distribution systems. They are widely used together with ammeters, watt-hour meters, measurement units and control relays in panels, switchboards and OEM equipment.
1. Product overview
The BH-0.66 I series converts high primary current into a safe standardized secondary output for measuring and monitoring equipment. This series is suitable for low-voltage power distribution, industrial control panels and metering systems that require stable current sensing and reliable insulation performance.
2. Main features
- Designed for use with ammeters, energy meters, measurement units and relays
- Available with 5A or 1A secondary current output
- Rated voltage up to 660V
- Supports 50Hz and 60Hz systems
- Busbar mounting or plate fixing structure
- Compact body for switchboard and panel installation
- Multiple transformation ratios available from 150/5 up to 4000/1 depending on model
- Accuracy classes including 0.2, 0.5, 0.5S and 1 for different measuring requirements
- Complies with IEC 61869-2
3. Technical specifications
| Item | Specification |
|---|---|
| Series | BH-0.66 I |
| Product type | Current Transformer (CT) |
| Secondary current Isn | 5A / 1A |
| Rated voltage Ue | 660V |
| Frequency | 50Hz / 60Hz |
| Operating temperature | -5°C to +40°C |
| Humidity | Below 80% |
| Altitude | ≤1000m |
| Installation type | Busbar fixing / plate fixing |
| Standard | IEC 61869-2 |
4. Typical applications
- Low-voltage power distribution boards
- Metering cabinets and energy monitoring systems
- Industrial switchboards and motor control centers
- OEM panels requiring current measurement and relay feedback
- Commercial and infrastructure power monitoring projects
5. Available ranges
According to the attached catalogue pages, the BH-0.66 I series covers multiple window sizes and current ranges. Common transformation ratio ranges include 150/5, 200/5, 250/5, 300/5, 400/5, 500/5, 600/5, 750/5, 800/5, 1000/5, 1200/5 and larger options up to 4000/1 depending on the selected body size and model.
6. Why choose BH-0.66 I
This series offers a practical balance of compact dimensions, broad current range and reliable metering accuracy for modern low-voltage panel applications. It is a strong choice for buyers who need a standardized CT solution for measurement and monitoring in IEC-based distribution systems.
7. Ordering support
If you need help choosing the correct transformation ratio, accuracy class, burden or window size, send us your primary current, busbar size, secondary current requirement and application type. We can help you recommend the suitable BH-0.66 I model.
8. Original catalogue pages
The following original catalogue pages are attached below for detailed model tables and dimensional reference.
