CTD9H8005AXXX – 800 A Primary current, 5A output 125×35 mm

Why Choose the Carlo Gavazzi CTD9H8005AXXX Current Transformer?

The Carlo Gavazzi CTD9H8005AXXX is a reliable solid-core current transformer (CT) designed for accurate measurement of high AC currents in industrial electrical installations, energy monitoring systems and distribution panels. As part of the Carlo Gavazzi CTD9H current transformer series, it converts a rated primary current of 800 A into a standard 5 A secondary output for connection to compatible meters, power analysers and monitoring equipment.

This through-feed current transformer provides an effective method of measuring high AC currents while maintaining electrical isolation between the primary conductor and the measurement circuit. Its solid-core construction makes it particularly suitable for permanent installations, while the horizontal CTD9H format accommodates large busbars commonly used in industrial switchboards and electrical distribution equipment.

With a 800 A primary current rating, 5 A secondary output and accuracy class 0.5, the CTD9H8005AXXX is well suited to precision metering and energy-management applications. The transformer is designed for busbars up to approximately 125 × 35 mm and features a large through-feed opening, providing practical installation flexibility for high-current industrial circuits.

Key Advantages

• Reliable solid-core current transformer designed for industrial AC current measurement.
• 800 A rated primary current for high-current electrical circuits.
• Standard 5 A secondary output for compatible metering and monitoring equipment.
• Class 0.5 accuracy supports precise electrical and energy measurement.
• Suitable for large busbars up to approximately 125 × 35 mm.
• Horizontal through-feed design supports installation in industrial switchboards and distribution panels.

Key Features

• Carlo Gavazzi CTD9H current transformer series.
• 800 A rated primary current.
• 5 A rated secondary current.
• 800/5 A transformation ratio, equivalent to 160:1.
• Accuracy class 0.5.
• 4 VA rated secondary apparent power at class 0.5.
• 36 mm hole diameter.
• Suitable for busbars up to approximately 125 × 35 mm.
• Solid-core, through-feed construction for permanent installations.
• Screw-terminal secondary connections for secure electrical termination.
• Suitable for DIN rail, panel and busbar mounting applications.

Accurate Current Measurement for Electrical Monitoring

Current transformers such as the Carlo Gavazzi CTD9H8005AXXX proportionally reduce high primary currents to a standard secondary current that can be measured by compatible instrumentation. With an 800/5 A ratio, an 800 A primary current corresponds to a 5 A secondary current, allowing meters and monitoring equipment to measure high-current circuits without carrying the full primary load current.

The CTD9H series is designed for industrial switchboards, distribution systems and energy-monitoring installations where dependable current measurement is essential. Its combination of solid-core construction, large busbar capacity and class 0.5 measurement accuracy makes the CTD9H8005AXXX particularly suitable for permanent installations requiring precise monitoring of electrical loads and energy consumption.

Typical Applications

• Industrial electrical switchboards and distribution panels.
• Energy meters and power monitoring systems.
• Building energy management systems.
• Industrial machinery and automation panels.
• Electrical load and consumption monitoring.
• Power quality and electrical measurement equipment.
• Commercial and industrial busbar installations.