CTK Series Split-Core Current Transformer for Power Monitoring
Wide current range: Primary current from 5A to 500A, secondary current 1mA to 5A
High accuracy: Accuracy class 0.5–2.0, stable ratio, and phase performance
High-performance magnetic core: Vacuum heat-treated silicon steel or nanocrystalline core for high sensitivity and consistency
Split-core clamp design: Easy and quick installation without cable disconnection
Durable housing: Flame-retardant PA66 engineering plastic, strong anti-aging capability
Compact and aesthetic design suitable for panel installation
Product Introduction
The CTK Series Split-Core Current Transformer is engineered for reliable AC measurement in power distribution and monitoring systems.
It adopts a split-core structure with high-quality silicon steel or nanocrystalline core, combined with pure copper enameled winding, ensuring excellent linearity, sensitivity, and long-term stability.
The split-core clamp design allows installation without disconnecting existing cables, making it especially suitable for retrofit projects and on-site upgrades. The flame-retardant PA66 housing provides high mechanical strength, aging resistance, and safe operation in industrial environments.
Product Details
Key Features
Wide current range: Primary current from 5A to 500A, secondary current 1mA to 5A
High accuracy: Accuracy class 0.5–2.0, stable ratio, and phase performance
High-performance magnetic core: Vacuum heat-treated silicon steel or nanocrystalline core for high sensitivity and consistency
Split-core clamp design: Easy and quick installation without cable disconnection
Durable housing: Flame-retardant PA66 engineering plastic, strong anti-aging capability
Compact and aesthetic design suitable for panel installation
Typical Applications
Power distribution monitoring
Energy metering systems
Electrical retrofit projects
Industrial automation
Power quality and load monitoring
Smart meters and monitoring devices
Electrical Specifications (Typical Models)
| Model | Rated Primary Current | Rated Secondary Current | Ratio | Accuracy Class |
|---|---|---|---|---|
| CTK10-60A-20mA | 60A | 20mA | 1:3000 | 0.5 |
| CTK16-150A-50mA | 150A | 50mA | 1:3000 | 0.5 |
| CTK24-200A-66.7mA | 200A | 66.7mA | 1:3000 | 0.5 |
Technical Parameters
Frequency: 50–60Hz
Dielectric strength: 2.5kV / 2mA / 60s (AC 50Hz)
Insulation resistance: ≥1000MΩ (500V DC)
Load resistance: 10Ω
Phase angle error: ≤120′ (depending on current ratio)
Installation & Storage
Clamp-on installation for fast deployment
No need to disconnect cables during installation
Recommended storage temperature: 0–40°C
Relative humidity: ≤75%, non-corrosive environment
Warranty
18 months warranty from the shipment date
Covers manufacturing defects under normal transportation, storage, installation, and usage conditions
