Carlo Gavazzi CTA6X200A5A is a Class 3 split-core current transformer with a 200 A primary rating, 5 A secondary output, 1 VA burden and 36 mm aperture for AC energy metering and retrofit current measurement applications.
£110.07
The Carlo Gavazzi CTA6X200A5A is a split-core current transformer from the CTA series, designed for AC current measurement in energy metering, monitoring and electrical distribution applications. It has a rated primary current of 200 A and provides a standard 5 A secondary output, giving a transformation ratio of 200:5 for use with compatible energy meters and measuring instruments.
Its split-core construction enables the transformer to be opened and installed around an existing conductor without disconnecting the power cable. This makes the CTA6X200A5A particularly suitable for retrofit energy-monitoring projects where minimising installation work and electrical disruption is important.
The CTA6X200A5A features a large 36 mm conductor aperture, Class 3 accuracy and a 1 VA burden. Designed for 50–60 Hz AC systems and supplied with a 1 m secondary cable, it provides a practical current measurement solution for commercial and industrial electrical installations.
Split-core current transformers are particularly useful when adding energy monitoring to an existing electrical installation. The CTA6X200A5A can be opened and positioned around an existing conductor, avoiding the need to pass the cable through a permanently closed transformer core and helping simplify retrofit installation.
With its 200:5 transformation ratio, the CTA6X200A5A converts primary AC current into a standard 5 A secondary signal for compatible metering equipment. Its comparatively large 36 mm opening provides additional installation flexibility where larger conductors are used in switchboards, distribution panels and industrial electrical systems.
| Current | 5 A |
|---|---|
| Manufacturer | Carlo Gavazzi |
| Series | CTA / CTA6X |
| Model | CTA6X200A5A |
| Product type | Split-core current transformer / current sensor |
| Rated primary current | 200 A |
| Rated secondary current | 5 A |
| Current ratio | 200:5 |
| Accuracy class | Class 3 |
| Rated burden | 1 VA |
| Frequency range | 50–60 Hz |
| Hole diameter | 36 mm nominal |
| Secondary cable length | 1 m |
| Construction | Split core |
| Mounting type | Cable / conductor mounted |
| Termination | Wire leads |
| Application | Metering and AC current measurement |
| Operating temperature | -20 to +65 °C |
| Approximate dimensions | 57.5 × 38.5 × 84 mm |
| Weight | Approximately 275 g |
| Applicable standard | EN 61869-2 |
| Certifications | CE, cURus |
| EAN | 8030956085747 |
The CTA6X200A5A is a split-core current transformer designed for measuring AC current in energy metering, monitoring and electrical distribution applications using equipment with compatible 5 A current transformer inputs.
The CTA6X200A5A has a 200:5 current ratio, with a rated primary current of 200 A and a rated secondary output of 5 A.
The Carlo Gavazzi CTA6X200A5A provides Class 3 accuracy with a rated burden of 1 VA.
The CTA6X200A5A has a nominal 36 mm conductor aperture, providing space for suitably sized cables and conductors.
The split-core construction allows the CTA6X200A5A to be opened and fitted around an existing conductor, making it especially useful for retrofit metering installations where disconnecting the primary conductor would be inconvenient.
Carlo Gavazzi CTA split-core current transformers provide practical retrofit installation, standardised current transformer outputs and dependable current measurement for industrial and commercial energy-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...