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CTD4X2505AXXX – CTD-4X Current Transformer 250A
Carlo Gavazzi CTD4X2505AXXX is a Class 0.5 solid-core current transformer with a 250 A AC primary rating, 5 A secondary output and 51 mm aperture for industrial energy metering and electrical current monitoring.
£65.97
Why Choose the Carlo Gavazzi CTD4X2505AXXX Current Transformer?
The Carlo Gavazzi CTD4X2505AXXX is a robust solid-core current transformer designed for accurate AC current measurement in industrial power monitoring, energy metering and electrical distribution applications. As part of the Carlo Gavazzi CTD-4X Series, it converts a primary current of 250 A AC into a standard 5 A secondary output for connection to compatible meters, power analysers and monitoring equipment.
With a transformer ratio of 250/5 A, the CTD4X2505AXXX allows high-current electrical circuits to be monitored safely using standard 5 A measurement inputs. Its Class 0.5 accuracy makes it suitable for applications where dependable current measurement is required, while its Class 0.5 rated burden of 2.5 VA supports accurate operation with compatible instrumentation.
The CTD4X2505AXXX features a generous 51 mm conductor aperture and supports busbars up to 64 mm wide, providing installation flexibility in industrial switchboards and distribution panels. Its solid-core construction is particularly suited to new installations where the primary cable or busbar can be routed through the transformer during assembly.
Key Advantages
- Accurate 250/5 A current transformation ratio for industrial measurement systems.
- 250 A rated primary current for medium-to-high-current electrical loads.
- Standard 5 A secondary output for compatible meters and power analysers.
- Accuracy Class 0.5 for dependable electrical measurement.
- 2.5 VA burden at Class 0.5.
- Large 51 mm aperture accommodates substantial power conductors.
- Supports busbars up to 64 mm wide.
- Solid-core construction provides a robust permanent current sensing solution.
- Suitable for industrial energy metering, power monitoring and electrical distribution systems.
Key Features
- Carlo Gavazzi CTD-4X Series current transformer.
- Solid-core construction.
- 250 A AC rated primary current.
- 5 A AC secondary output.
- 250:5 current transformation ratio.
- 50:1 transformation ratio.
- Accuracy Class 0.5.
- 2.5 VA rated burden at Class 0.5.
- 4.5 VA rated burden at Class 1.
- 51 mm hole diameter.
- 64 mm maximum busbar width.
- Stepped aperture design suitable for cables and busbars.
- Double set of connection terminals for practical installation.
- Suitable for use with compatible Carlo Gavazzi energy meters and power monitoring equipment.
Reliable Current Measurement for Energy Monitoring
Current transformers such as the Carlo Gavazzi CTD4X2505AXXX allow high AC currents to be measured by reducing the primary current to a proportional secondary current that can be safely handled by standard electrical instrumentation. At its rated primary current of 250 A, the CTD4X2505AXXX provides a 5 A secondary output for compatible metering 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 aperture and support for substantial busbars make the CTD4X2505AXXX a practical solution for energy measurement, load monitoring and power management applications.
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 electrical installations.
- Busbar and cable current measurement up to 250 A AC.
Technical Specifications
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| Rated Burden (VA) | 2.5 VA | |
|---|---|---|
| Device Type | Solid-core CT | |
| Rated Primary Current (A) | 250 A | |
| Aperture (mm) | 64 mm | |
| Accuracy Class | Class 0.5 | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-4X | |
| Model | CTD4X2505AXXX | |
| Product type | Solid-core current transformer | |
| Rated primary current | 250 A AC | |
| Secondary output current | 5 A AC | |
| Current ratio | 250/5 A | |
| Transformation ratio | 50:1 | |
| Accuracy class | 0.5 | |
| Rated burden, Class 0.5 | 2.5 VA | |
| Rated burden, Class 1 | 4.5 VA | |
| Hole diameter | 51 mm | |
| Maximum busbar width | 64 mm | |
| Core type | Solid core | |
| Connection | Screw terminals | |
| Terminal arrangement | Double set of connection terminals | |
| Application | AC current measurement and energy monitoring |
Frequently Asked Questions
What is the Carlo Gavazzi CTD4X2505AXXX used for?
The Carlo Gavazzi CTD4X2505AXXX is a solid-core current transformer used to measure 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 CTD4X2505AXXX?
The CTD4X2505AXXX has a current transformer ratio of 250/5 A, meaning a rated primary current of 250 A produces a 5 A secondary output.
What accuracy class does the CTD4X2505AXXX provide?
The Carlo Gavazzi CTD4X2505AXXX provides Accuracy Class 0.5, making it suitable for accurate electrical current and energy measurement applications.
What is the aperture size of the CTD4X2505AXXX?
The current transformer has a 51 mm diameter aperture for the primary conductor and can accommodate busbars up to 64 mm wide.
What is the rated burden of the CTD4X2505AXXX?
The CTD4X2505AXXX has a rated burden of 2.5 VA at Class 0.5 and 4.5 VA at Class 1.
Is the Carlo Gavazzi CTD4X2505AXXX a split-core transformer?
No. The CTD4X2505AXXX uses a solid-core construction, so the monitored cable or busbar must pass through the transformer aperture 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 construction and accurate measurement performance.
