Carlo Gavazzi CTA6X300A5A is a Class 1 split-core current transformer with a 300 A primary rating, 5 A secondary output, 36 mm conductor opening and 50/60 Hz frequency range for electrical energy metering and monitoring applications.
£112.76
The Carlo Gavazzi CTA6X300A5A is a split-core current transformer designed for accurate AC current measurement in energy metering and electrical monitoring applications. Part of the Carlo Gavazzi CTA series, its split-core construction allows installation around an existing conductor without disconnecting the primary cable, making it particularly well suited to retrofit installations.
The CTA6X300A5A has a rated primary current of 300 A and provides a standard 5 A secondary output, giving a current transformation ratio of 300:5. Its Class 1 accuracy and 50/60 Hz operating frequency make it suitable for connection to compatible energy meters, power monitoring instruments and measurement systems with 5 A current inputs.
A generous 36 mm conductor opening accommodates larger primary conductors, while the integrated 1 m secondary cable simplifies connection to associated measuring equipment. The CTA6X300A5A provides a practical combination of accurate measurement, rapid installation and retrofit flexibility for commercial and industrial electrical systems.
Split-core current transformers provide a convenient method of measuring higher AC currents without routing the full primary current through the connected measuring instrument. The transformer produces a proportional secondary current that can be measured by compatible energy meters, power analysers and monitoring equipment, providing safe and practical current measurement within electrical installations.
The Carlo Gavazzi CTA6X300A5A is particularly useful for retrofit projects because its split-core design can be opened and fitted around an existing conductor. With its 300:5 ratio, Class 1 accuracy and standard 5 A secondary output, it can be paired with compatible Carlo Gavazzi and third-party measuring equipment designed for 5 A current transformer inputs.
| Current | 5 A |
|---|---|
| Manufacturer | Carlo Gavazzi |
| Series | CTA / CTA6X |
| Model | CTA6X300A5A |
| Product type | Split-core current transformer |
| Rated primary current | 300 A |
| Secondary current | 5 A |
| Current ratio | 300:5 |
| Accuracy class | Class 1 |
| Rated burden | 2.5 VA |
| Frequency range | 50/60 Hz |
| Conductor opening | 36 mm |
| Secondary cable length | 1 m |
| Termination | Wire leads |
| Construction | Split core |
| Application | Electrical current measurement and energy metering |
| Operating temperature | -20 to +65 °C |
| Standard | EN 61869-2 |
| EAN | 8030956085754 |
The CTA6X300A5A is a split-core current transformer used to measure AC current for energy metering, power monitoring and electrical measurement applications.
The CTA6X300A5A has a 300:5 current ratio, corresponding to a rated primary current of 300 A and a secondary current of 5 A.
The current transformer provides Class 1 accuracy, making it suitable for compatible electrical metering and energy monitoring applications.
The CTA6X300A5A has a nominal 36 mm conductor opening, allowing it to be installed around suitably sized primary conductors.
Yes. Its split-core construction allows the transformer to be opened and fitted around an existing conductor, making it particularly convenient for retrofit energy monitoring installations where disconnecting the primary cable would be impractical.
Carlo Gavazzi CTA split-core current transformers provide electrical engineers, panel builders and energy-management professionals with practical current measurement, accurate metering performance and fast installation for new and retrofit electrical monitoring systems.
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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...