CTK Series Split Core Current Transformer Clamp-on Current Sensor 5A–500A

CTK Series Split Core CT Clamp-on Current Sensor 5A–500A

Product Overview

The CTK Series Split Core Current Transformer is a clamp-on type current transformer designed for non-intrusive measurement of current.
It features a split core structure, enabling quick installation without requiring cable disconnection, making it particularly suitable for power retrofit projects, energy monitoring systems, and industrial automation applications.

The CTK Series uses high-quality silicon steel or nanocrystalline magnetic cores, combined with pure copper enameled winding, ensuring excellent linearity, stable accuracy, and high sensitivity across a wide current range.

Key Features

• Wide Current Range: Primary current from 5A to 500A, secondary output from 1mA to 5A

• High Accuracy: Accuracy class 0.5–2, stable performance under rated conditions

• Split Core Design: Clamp-on structure for fast installation without cutting cables

• High-Quality Magnetic Core: Vacuum heat-treated core for improved sensitivity and consistency

• Durable Housing: Flame-retardant PA66 engineering plastic, resistant to aging

• Standard Frequency: Suitable for 50–60Hz power systems

Typical Applications

• Energy management systems

• Power monitoring and metering

• Electrical retrofit projects

• Industrial automation

• Smart grid and sub-metering

• Load monitoring in commercial and industrial buildings

Electrical Specifications (Typical Models)

• Dielectric Strength: 2.5kV / 60s

• Insulation Resistance: ≥1000MΩ (500V DC)

• Load Resistance: 10Ω

Installation Advantages

Thanks to its snap-on split core structure, the CTK Series can be installed quickly on existing cables without interrupting the power supply. This significantly reduces installation time, labor cost, and system downtime.