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CTD4X4005AXXX – CTD-4X Current Transformer 400A
Carlo Gavazzi CTD4X4005AXXX is a Class 0.5 solid-core current transformer with a 400 A AC primary rating, 5 A secondary output and 51 mm aperture for industrial energy metering and electrical current monitoring.
£67.66
Why Choose the Carlo Gavazzi CTD4X4005AXXX Current Transformer?
The Carlo Gavazzi CTD4X4005AXXX is a robust solid-core AC current transformer designed for accurate current measurement in industrial power monitoring, energy metering and electrical distribution applications. As part of the Carlo Gavazzi CTD-4X Series, it converts a rated primary current of 400 A AC into a standard 5 A secondary output for connection to compatible energy meters, power analysers and monitoring equipment.
With a transformation ratio of 400/5 A, the CTD4X4005AXXX enables high-current electrical circuits to be monitored using standard 5 A measurement inputs. Its Accuracy Class 0.5 provides dependable measurement performance for industrial energy management, load monitoring and electrical metering systems.
The CTD4X4005AXXX features a large 51 mm conductor aperture and accommodates busbars up to 64 mm wide. Its stepped aperture design supports both cables and busbars, while screw terminal connections and flexible DIN rail, panel or busbar mounting options simplify integration into switchboards, distribution panels and industrial electrical installations.
Key Advantages
- Accurate 400/5 A current transformation ratio for industrial measurement systems.
- 400 A rated primary current for high-current electrical loads.
- Standard 5 A secondary output for compatible meters and power analysers.
- Accuracy Class 0.5 for dependable current and energy measurement.
- 6 VA rated secondary apparent power.
- Large 51 mm conductor aperture accommodates substantial power cables.
- Supports busbars up to 64 mm wide.
- Solid-core construction provides a robust permanent current sensing solution.
- DIN rail, panel and busbar mounting options provide installation flexibility.
- Suitable for industrial energy metering, power monitoring and electrical distribution systems.
Key Features
- Carlo Gavazzi CTD-4X Series current transformer.
- Solid-core through-feed construction.
- 400 A AC rated primary current.
- 5 A AC rated secondary current.
- 400:5 current transformation ratio.
- 80:1 transformation ratio.
- Accuracy Class 0.5.
- 6 VA rated secondary apparent power.
- 51 mm opening diameter.
- 64 mm maximum busbar width.
- Stepped aperture suitable for power cables and busbars.
- Double set of connection terminals.
- Screw terminal secondary connections.
- FS5 security factor.
- DIN rail, panel or busbar mounting.
- Suitable for compatible Carlo Gavazzi energy meters and power monitoring equipment.
Reliable Current Measurement for Energy Monitoring
Current transformers such as the Carlo Gavazzi CTD4X4005AXXX allow high AC currents to be measured by transforming the primary current into a proportional secondary current that can be safely handled by standard electrical instrumentation. At its rated primary current of 400 A, the CTD4X4005AXXX provides a 5 A secondary output for compatible energy meters, power analysers and monitoring equipment.
The CTD-4X solid-core design is particularly suited to permanent installations in switchboards, distribution panels and industrial electrical systems. Its Class 0.5 accuracy, large conductor opening, stepped aperture and support for substantial busbars make the CTD4X4005AXXX a practical solution for accurate energy measurement, load monitoring and electrical power management.
Typical Applications
- Industrial energy metering systems.
- Electrical distribution boards and switchboards.
- Power and load monitoring systems.
- Industrial machinery electrical monitoring.
- Building energy management systems.
- Power analysers and multifunction meters.
- Factory and production facility energy monitoring.
- Commercial and industrial electrical installations.
- Busbar and cable current measurement up to 400 A AC.
Technical Specifications
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| Mounting Type | Busbar, DIN rail, Panel / base | |
|---|---|---|
| Rated Primary Current (A) | 400 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 51 mm | |
| Accuracy Class | Class 0.5 | |
| Rated Burden (VA) | 6 VA | |
| Device Type | Solid-core CT | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-4X | |
| Model | CTD4X4005AXXX | |
| Product type | Solid-core AC current transformer | |
| Rated primary current | 400 A AC | |
| Rated secondary current | 5 A AC | |
| Current ratio | 400/5 A | |
| Transformation ratio | 80:1 | |
| Accuracy class | 0.5 | |
| Rated secondary apparent power | 6 VA | |
| Security factor | FS5 | |
| Opening diameter | 51 mm | |
| Maximum busbar width | 64 mm | |
| Maximum horizontal busbar | 64 × 20 mm or 51 × 43 mm | |
| Maximum vertical busbar | 51 × 31 mm | |
| Core type | Solid core | |
| Transformer type | Through-feed current transformer | |
| Aperture type | Stepped | |
| Connection | Screw terminals | |
| Terminal arrangement | Double set of connection terminals | |
| Mounting type | DIN rail / panel / busbar | |
| Application | AC current measurement and energy monitoring |
Frequently Asked Questions
What is the Carlo Gavazzi CTD4X4005AXXX used for?
The Carlo Gavazzi CTD4X4005AXXX is a solid-core current transformer used to measure high AC currents in industrial electrical systems and provide a standard secondary current for compatible energy meters, power analysers and monitoring equipment.
What is the current ratio of the CTD4X4005AXXX?
The CTD4X4005AXXX has a current transformer ratio of 400/5 A, meaning a rated primary current of 400 A produces a 5 A secondary output.
What accuracy class does the CTD4X4005AXXX provide?
The Carlo Gavazzi CTD4X4005AXXX provides Accuracy Class 0.5, making it suitable for accurate electrical current and energy measurement applications.
What is the aperture size of the CTD4X4005AXXX?
The current transformer has a 51 mm opening diameter for the primary conductor and accommodates busbars up to 64 mm wide.
What is the rated secondary apparent power of the CTD4X4005AXXX?
The CTD4X4005AXXX has a rated secondary apparent power of 6 VA and a security factor of FS5.
Is the Carlo Gavazzi CTD4X4005AXXX a split-core transformer?
No. The CTD4X4005AXXX uses a solid-core construction, so the monitored cable or busbar must pass through the transformer opening during installation.
Trusted by Industrial Automation Professionals
Carlo Gavazzi CTD Series current transformers provide dependable current measurement for industrial energy management, power monitoring and electrical distribution systems, combining standard secondary outputs with robust solid-core construction and accurate measurement performance.
