Carlo Gavazzi CTD8H4005AXXX CTD-8H solid-core current transformer with a 400 A primary rating, 5 A secondary output, class 0.5 accuracy and 80 x 30 mm nominal horizontal busbar capacity for industrial electrical metering and monitoring applications.
£116.05
The Carlo Gavazzi CTD8H4005AXXX is a robust solid-core current transformer (CT) designed for accurate AC current measurement in electrical distribution, energy monitoring and industrial power management applications. As part of the Carlo Gavazzi CTD-8H current transformer series, it converts the current flowing through a primary conductor into a standard secondary current suitable for compatible energy meters, power analysers and electrical monitoring equipment.
This current transformer features a 400 A rated primary current and 5 A secondary output, providing a 400/5 A transformation ratio. Its accuracy class 0.5 and 3 VA rated burden at class 0.5 make it suitable for dependable electrical metering and monitoring applications where accurate measurement of industrial loads is required.
The CTD8H4005AXXX is designed for cables and large busbars, with a nominal 80 × 30 mm horizontal busbar capacity. Its rectangular opening provides a 31 mm aperture height and 81 mm maximum busbar width, while the horizontal solid-core configuration and screw-terminal secondary connections make it suitable for installation in switchboards, distribution panels and industrial electrical systems.
Current transformers such as the Carlo Gavazzi CTD8H4005AXXX allow AC current to be monitored by converting the current flowing through the primary conductor into a proportional lower secondary current. The resulting 5 A signal can be connected to compatible energy meters, multifunction meters, power analysers and electrical monitoring equipment without requiring the full primary current to pass directly through the measuring instrument.
The CTD-8H series is designed for industrial electrical distribution systems where substantial cables or busbars need to be accommodated. Its solid-core construction, class 0.5 measurement accuracy, standard 5 A secondary output and large rectangular conductor opening make the CTD8H4005AXXX particularly suitable for switchboards, distribution panels and energy monitoring systems requiring a 400 A primary current transformer.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | CTD-8H |
| Model | CTD8H4005AXXX |
| Product type | Solid-core current transformer |
| Rated primary current | 400 A |
| Rated secondary current | 5 A |
| Transformation ratio | 400/5 A |
| Ratio | 80:1 |
| Accuracy class | 0.5 |
| Rated burden at class 0.5 | 3 VA |
| Rated burden at class 1 | 5 VA |
| Rated burden at class 3 | 8 VA |
| Nominal busbar size | 80 × 30 mm |
| Aperture size | approx. 81 × 31 mm |
| Aperture height | 31 mm |
| Maximum busbar width | 81 mm |
| Secondary connection | Screw terminals |
| Mounting orientation | Horizontal |
| Construction | Solid core |
| Dimensions | approx. 116 × 87 × 40 mm |
| EAN / GTIN | 8030956043082 |
The CTD8H4005AXXX is used to convert a 400 A primary AC current into a proportional 5 A secondary current for compatible energy meters, power analysers and electrical monitoring equipment.
The current transformer has a 400/5 A ratio, equivalent to 80:1, with a rated primary current of 400 A and a rated secondary current of 5 A.
The Carlo Gavazzi CTD8H4005AXXX has an accuracy class of 0.5 with a rated burden of 3 VA at class 0.5, making it suitable for accurate industrial electrical metering and monitoring applications.
The CTD8H4005AXXX is designed for a nominal 80 × 30 mm horizontal busbar, with an aperture height of 31 mm and a maximum busbar width of 81 mm.
The current transformer is typically installed around cables or busbars in electrical switchboards, distribution panels, energy monitoring systems and industrial power management installations requiring measurement of currents up to 400 A.
Carlo Gavazzi CTD current transformers provide dependable current measurement for energy management, electrical metering and industrial monitoring systems, with the CTD-8H series combining large conductor openings, accurate measurement and standard secondary outputs for industrial electrical distribution applications.
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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...