Carlo Gavazzi CTD9H8005AXXX solid-core current transformer with an 800 A primary rating, 5 A secondary output and class 0.5 accuracy for industrial electrical measurement and energy monitoring.
£130.94
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.
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.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | CTD9H |
| Model | CTD9H8005AXXX |
| Product type | Solid-core current transformer |
| Rated primary current | 800 A |
| Rated secondary current | 5 A |
| Current transformation ratio | 800/5 A (160:1) |
| Accuracy class | 0.5 |
| Rated secondary apparent power, class 0.5 | 4 VA |
| Rated secondary apparent power, class 1 | 8 VA |
| Rated secondary apparent power, class 3 | 10 VA |
| Primary inputs | 1 |
| Hole diameter | 36 mm |
| Maximum busbar size | approx. 125 × 35 mm |
| Transformer type | Through-feed / window current transformer |
| Core type | Solid core |
| Secondary connection | Screw terminals |
| Mounting orientation | Horizontal |
| Mounting options | DIN rail / panel / busbar |
| Dimensions | approx. 161 × 91.7 × 40 mm |
The CTD9H8005AXXX is used to measure high AC currents in electrical distribution, energy monitoring and industrial control systems by converting a rated 800 A primary current into a proportional 5 A secondary current.
The current transformer has a rated ratio of 800/5 A, equivalent to a transformation ratio of 160:1.
The CTD9H8005AXXX has an accuracy class of 0.5 with a rated secondary apparent power of 4 VA at this accuracy class, making it suitable for precise current and energy measurement.
The CTD9H8005AXXX features a 36 mm hole diameter and is designed for large conductors and busbars up to approximately 125 × 35 mm.
The CTD9H8005AXXX is typically installed around a conductor or busbar inside industrial switchboards, electrical distribution panels, power monitoring systems and energy-management installations.
Carlo Gavazzi CTD9H current transformers provide dependable current measurement for industrial installers, panel builders and energy-management professionals, combining solid-core construction with accurate measurement and practical integration into commercial and industrial power systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...