Carlo Gavazzi CTA6X400A5A is a Class 1 split-core current transformer with a 400 A primary rating, 5 A secondary output, 36 mm conductor opening and 50/60 Hz frequency range for electrical energy metering and monitoring applications.
£115.44
The Carlo Gavazzi CTA6X400A5A is a split-core current transformer designed for AC current measurement in electrical metering and energy monitoring systems. Part of the Carlo Gavazzi CTA series, its split-core construction allows the transformer to be fitted around an existing conductor without disconnecting the primary cable, making it particularly convenient for retrofit installations.
The CTA6X400A5A has a rated primary current of 400 A and a standard 5 A secondary output, providing a 400:5 current transformation ratio. Its Class 1 accuracy and 50/60 Hz operating frequency make it suitable for connection to compatible energy meters, power analysers and electrical measuring equipment with 5 A current transformer inputs.
A 36 mm conductor opening accommodates suitably sized primary cables, while the integrated 1 m secondary cable simplifies connection to associated measuring equipment. With its combination of split-core installation, dependable measurement performance and standardised 5 A output, the CTA6X400A5A is well suited to commercial and industrial energy monitoring applications.
Current transformers allow higher AC currents to be measured indirectly by converting the primary current into a proportional secondary signal suitable for compatible measuring equipment. A standard 5 A secondary output enables the CTA6X400A5A to interface with a wide range of energy meters and power monitoring instruments designed for external current transformers.
The split-core construction of the Carlo Gavazzi CTA6X400A5A makes it especially useful for retrofit energy monitoring projects. The core can be opened and installed around an existing conductor, reducing the need to disconnect or reroute primary cabling while providing a 400:5 transformation ratio and Class 1 measurement accuracy.
| Current | 5 A |
|---|---|
| Manufacturer | Carlo Gavazzi |
| Series | CTA / CTA6X |
| Model | CTA6X400A5A |
| Product type | Split-core current transformer |
| Rated primary current | 400 A |
| Rated secondary current | 5 A |
| Current ratio | 400:5 |
| Accuracy class | Class 1 |
| Rated secondary apparent power | 5 VA |
| Frequency range | 50/60 Hz |
| Conductor opening | 36 mm |
| Secondary connection | Cable / wire leads |
| Secondary cable length | 1 m |
| Construction | Split core |
| Application | Electrical current measurement and energy metering |
| EAN | 8030956085761 |
The CTA6X400A5A is a split-core current transformer designed for AC current measurement in energy metering, power monitoring and electrical measurement systems.
The CTA6X400A5A has a 400:5 current ratio, corresponding to a rated primary current of 400 A and a rated secondary current of 5 A.
The current transformer provides Class 1 accuracy, making it suitable for compatible electrical metering and energy monitoring applications.
The CTA6X400A5A has a 36 mm conductor opening for installation around suitably sized primary conductors.
Yes. The split-core construction allows the CTA6X400A5A to be opened and fitted around an existing conductor, making it particularly suitable for retrofit electrical monitoring installations.
Carlo Gavazzi CTA split-core current transformers provide electrical engineers, panel builders and energy-management professionals with practical current measurement, reliable metering performance and straightforward installation for new and retrofit 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...