CTD8H4005AXXX – 400 A Primary current, 5A output 80×30 mm

Why Choose the Carlo Gavazzi CTD8H4005AXXX CTD-8H Current Transformer?

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.

Key Advantages

• Solid-core 400/5 A current transformer for accurate AC current measurement.
• 400 A rated primary current for industrial electrical circuits.
• 5 A secondary output compatible with suitable meters and power analysers.
• Accuracy class 0.5 for dependable electrical metering and monitoring.
• 3 VA rated burden at accuracy class 0.5.
• Large 80 × 30 mm nominal horizontal busbar capacity for substantial conductors.
• 31 mm aperture height and 81 mm maximum busbar width.
• Horizontal solid-core configuration with screw-terminal secondary connections for practical installation.

Key Features

• Carlo Gavazzi CTD-8H current transformer series.
• 400 A rated primary current.
• 5 A rated secondary current.
• 400/5 A transformation ratio.
• 80:1 current ratio.
• Accuracy class 0.5.
• 3 VA burden at accuracy class 0.5.
• 5 VA burden at accuracy class 1.
• 8 VA burden at accuracy class 3.
• 80 × 30 mm nominal horizontal busbar size.
• 31 mm aperture height and 81 mm maximum busbar width.
• Solid-core construction with screw-terminal secondary connections.

Reliable Current Measurement for Electrical Monitoring

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.

Typical Applications

• Electrical energy metering and monitoring systems.
• Industrial switchboards and distribution panels.
• Power analysers and multifunction electrical meters.
• Building energy management systems.
• Industrial automation and power monitoring panels.
• Busbar current and electrical load monitoring.