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CTA5X100A5A – CURRENT SENSOR CTA5X100A5A
Carlo Gavazzi CTA5X100A5A split-core current transformer with 100 A primary rating, 5 A secondary output and Class 3 accuracy for industrial and commercial energy monitoring applications.
£78.60
Why Choose the Carlo Gavazzi CTA5X100A5A Current Sensor?
The Carlo Gavazzi CTA5X100A5A is a compact split-core current transformer designed for accurate current measurement in industrial, commercial and energy monitoring applications. Part of the reliable CTA series current transformer range, it provides a simple retrofit solution for systems using energy meters or analysers with 5 A current inputs.
The split-core construction allows quick installation around existing conductors without disconnecting cables, making the CTA5X100A5A particularly suitable for upgrades, maintenance projects and installations where traditional solid-core current transformers are difficult to fit. Its compact design supports flexible integration into electrical monitoring systems.
With a 100 A primary current rating, 5 A secondary output and Class 3 accuracy, the CTA5X100A5A provides dependable current measurement for energy meters and monitoring equipment operating at 50 / 60 Hz.
Key Advantages
- Compact split-core current transformer for easy installation.
- 100 A primary current measurement suitable for electrical monitoring applications.
- 5 A secondary output compatible with standard current-input energy meters.
- Split-core design enables installation without disconnecting existing cables.
- Class 3 accuracy for reliable current measurement.
- Suitable for retrofit, commercial and industrial energy monitoring systems.
- Compatible with Carlo Gavazzi energy meters and analysers with 5 A current inputs.
Key Features
- Carlo Gavazzi CTA series.
- Split-core current transformer design.
- Primary current rating: 100 A.
- Secondary current output: 5 A.
- Current ratio: 100:5.
- Accuracy class: Class 3 according to EN 61869-2.
- Frequency range: 50 / 60 Hz.
- 24 mm window diameter.
- Wire lead termination for straightforward connection.
- IP20 protection rating.
Reliable Current Measurement for Energy Monitoring Systems
Current transformers such as the Carlo Gavazzi CTA5X100A5A provide electrical isolation between high-current conductors and monitoring equipment while converting measured current into a standard secondary signal. This allows energy meters, power analysers and monitoring systems to accurately measure electrical consumption and load conditions.
The split-core design of the CTA series simplifies installation in existing electrical systems, making it ideal for retrofit projects where cables are already installed and interruption of power circuits is undesirable. Its compact construction and standard 5 A output allow integration into a wide range of industrial energy-management applications.
Typical Applications
- Industrial energy monitoring systems.
- Electrical panel current measurement.
- Power analysers and energy meters.
- Building energy management systems.
- Machine power monitoring applications.
- Retrofit electrical measurement installations.
- Commercial and industrial power monitoring.
Technical Specifications
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| IP Rating | IP20 | |
|---|---|---|
| Manufacturer | Carlo Gavazzi | |
| Series | CTA Split Core Current Transformers | |
| Model | CTA5X100A5A | |
| Product type | Split-core current transformer / current sensor | |
| Primary current | 100 A | |
| Secondary current | 5 A | |
| Current ratio | 100:5 | |
| Accuracy class | Class 3 | |
| Frequency | 50 / 60 Hz | |
| Rated system voltage | 600 V AC | |
| Rated insulation level | 0.72 kV AC | |
| Dielectric strength | 3 kV AC for 1 min | |
| Window diameter | 24 mm | |
| Protection rating | IP20 | |
| Operating temperature | -20 to +65 °C | |
| Mounting type | Cable mounted / free hanging | |
| Termination | Wire leads | |
| Dimensions (H × W × D) | approx. 65.2 × 34 × 45.2 mm | |
| Weight | approx. 165 g | |
| Standards | EN 61869-2 |
Frequently Asked Questions
What is the Carlo Gavazzi CTA5X100A5A used for?
The CTA5X100A5A is a split-core current transformer used to measure electrical current for energy meters, power analysers and monitoring systems with 5 A current inputs.
What current can the CTA5X100A5A measure?
The current transformer has a 100 A primary current rating with a 5 A secondary output.
What type of current transformer is the CTA5X100A5A?
The CTA5X100A5A is a split-core current transformer designed for quick installation around existing conductors.
What is the accuracy class of this current sensor?
The CTA5X100A5A provides Class 3 accuracy according to EN 61869-2 requirements.
Where is the CTA5X100A5A typically installed?
The unit is commonly installed in industrial, commercial and retrofit electrical monitoring systems connected to compatible energy meters or analysers.
Trusted by Energy Monitoring Professionals Worldwide
Carlo Gavazzi CTA series current transformers are widely used by electrical engineers and energy-management professionals to provide reliable current measurement for industrial monitoring, retrofit installations and power analysis systems.
