Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
CTD8S4005AXXX – 400 A Primary current, 5A output 30×80 mm
Carlo Gavazzi CTD8S4005AXXX split-core current transformer with 400 A primary current and 5 A secondary output for industrial current measurement applications.
£130.54
Why Choose the Carlo Gavazzi CTD8S4005AXXX Current Transformer?
The Carlo Gavazzi CTD8S4005AXXX is a high-quality split-core AC current transformer designed for accurate measurement and monitoring of industrial electrical currents. As part of the proven Carlo Gavazzi CTD-8S current transformer series, it provides a standard 5 A secondary output for connection to energy meters, monitoring equipment and electrical protection systems.
The CTD8S4005AXXX features a split-core design with bus-bar mounting capability, allowing easier installation and retrofit integration without requiring complete conductor removal. Its robust construction includes secure fixing screws, double screw terminals and sealable terminal covers for dependable operation in industrial switchboards and power distribution applications.
With a 400 A primary current rating, 5 A secondary output, Class 1 accuracy and a 31 mm × 81 mm opening, the CTD8S4005AXXX is designed for reliable current measurement in industrial energy monitoring and electrical distribution systems.
Key Advantages
- 400 A / 5 A current transformation ratio for industrial current measurement applications.
- Split-core construction simplifies installation and retrofit projects.
- Class 1 accuracy for reliable current monitoring performance.
- 31 mm × 81 mm aperture suitable for large conductor installations.
- Bus-bar mounting capability up to 30 mm × 80 mm.
- Sealable terminal covers improve connection safety and protection.
Key Features
- Carlo Gavazzi CTD-8S series split-core current transformer.
- 400 A rated primary current.
- 5 A rated secondary current output.
- 400:5 current ratio.
- Class 1 accuracy.
- 31 mm opening diameter.
- 31 mm × 81 mm opening dimensions.
- Maximum bus-bar size: 30 mm × 80 mm.
- Operating frequency range of 48–62 Hz.
- Double screw terminals supporting secure multi-wire connections.
- Split-core fixing screws designed for safe installation.
Reliable Current Measurement for Industrial Power Systems
Current transformers such as the Carlo Gavazzi CTD8S4005AXXX allow electrical systems to be monitored safely by reducing the measured primary current to a standard secondary signal. This enables accurate connection to energy meters, monitoring devices and electrical protection equipment.
The CTD-8S series combines split-core installation convenience with dependable current measurement performance, making it suitable for industrial installations where reliable monitoring and secure mounting are required.
Typical Applications
- Industrial electrical distribution panels.
- Energy monitoring and power management systems.
- Electrical switchboards and control cabinets.
- Motor control centres.
- Power meters and monitoring equipment.
- Industrial automation and electrical measurement systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Mounting Type | Busbar | |
|---|---|---|
| Rated Primary Current (A) | 400 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 80 × 30 mm | |
| Accuracy Class | Class 1 | |
| Device Type | Split-core CT | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-8S | |
| Model | CTD8S4005AXXX | |
| Product type | Split-core AC current transformer | |
| Primary current | 400 A | |
| Secondary current | 5 A | |
| Current ratio | 400:5 | |
| Accuracy class | Class 1 | |
| Frequency range | 48–62 Hz | |
| Maximum system voltage | 0.72 kV | |
| Rated insulation level | 3 kV / 1 min at 50 Hz | |
| Insulation class | E (maximum 75 °C) | |
| Security factor | ≤5 | |
| Mounting type | Bus-bar mounting | |
| Opening size | 31 mm × 81 mm | |
| Maximum bus-bar size | 30 mm × 80 mm | |
| Housing material | Self-extinguishing UL 94 V-0 material | |
| Connection type | Double screw terminals | |
| Protection rating | IP00 without terminal covers / IP20 with sealable terminal covers | |
| Working temperature | -25 °C to product-specific maximum rating |
Frequently Asked Questions
What is the Carlo Gavazzi CTD8S4005AXXX used for?
The CTD8S4005AXXX is used to measure AC current and provide a standard 5 A secondary output for electrical monitoring and metering equipment.
What is the current ratio of this transformer?
The transformer has a 400:5 ratio, with a 400 A primary current rating and 5 A secondary output.
What type of current transformer is the CTD8S4005AXXX?
The CTD8S4005AXXX is a split-core bus-bar current transformer designed for industrial electrical measurement applications.
What bus-bar size does this current transformer support?
The transformer supports bus-bars up to 30 mm × 80 mm.
What accuracy class does the CTD8S4005AXXX provide?
The CTD8S4005AXXX provides Class 1 accuracy for reliable industrial current measurement applications.
Trusted by Industrial Electrical Engineers Worldwide
Carlo Gavazzi CTD-8S current transformers are widely used in industrial electrical measurement applications where accurate monitoring, flexible installation and dependable performance are required.
