Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
CTA5X150A5A – CURRENT SENSOR CTA5X150A5A
Carlo Gavazzi CTA5X150A5A split-core current transformer with 150 A primary rating, 5 A secondary output, Class 3 accuracy, 1 VA burden and a 24 mm conductor opening for industrial and commercial energy monitoring.
£79.59
Why Choose the Carlo Gavazzi CTA5X150A5A Current Sensor?
The Carlo Gavazzi CTA5X150A5A is a compact split-core current transformer designed for current measurement in industrial, commercial and energy monitoring systems. Part of the Carlo Gavazzi CTA5X series, it converts a primary current of up to 150 A into a standard 5 A secondary current for connection to compatible energy meters, power analysers and electrical monitoring equipment.
Its split-core construction allows the transformer to be opened and installed around an existing conductor without disconnecting the cable. This makes the CTA5X150A5A particularly useful for retrofit energy-monitoring projects, electrical panel upgrades and applications where interrupting an existing power circuit would be inconvenient.
The CTA5X150A5A features a 24 mm conductor opening, Class 3 accuracy and a 1 VA rated burden. Designed for 50 / 60 Hz AC systems, the CTA5X family also supports a maximum rated system voltage of 600 V, providing a practical current sensing solution for industrial energy management and electrical measurement installations.
Key Advantages
- Compact split-core current transformer designed for retrofit installations.
- 150 A primary current rating for industrial and commercial electrical monitoring.
- Standard 5 A secondary output for compatible meters and power analysers.
- Split-core construction enables installation without disconnecting the monitored conductor.
- Class 3 accuracy for dependable current measurement.
- 24 mm opening diameter accommodates a wide range of electrical conductors.
- Compact construction simplifies installation in electrical panels and existing systems.
Key Features
- Carlo Gavazzi CTA5X split-core current transformer series.
- 150 A rated primary current.
- 5 A secondary current output.
- 150:5 current transformation ratio.
- Class 3 accuracy.
- 1 VA rated burden.
- 24 mm circular conductor opening.
- Designed for 50 / 60 Hz AC systems.
- Maximum rated system voltage of 600 V.
- Split-core design with a 180° opening angle.
- Wire lead connection for straightforward integration.
Reliable Current Measurement for Energy Monitoring Systems
Current transformers such as the Carlo Gavazzi CTA5X150A5A convert the current flowing through a high-current conductor into a lower secondary current that can be safely measured by compatible instrumentation. Its 150:5 ratio makes it suitable for monitoring circuits where energy meters and power analysers are designed for standard 5 A current transformer inputs.
The split-core construction is especially valuable in existing installations because the sensor can be fitted around the conductor without removing or rewiring it. This helps reduce installation time and makes the CTA5X150A5A a practical choice for energy-efficiency projects, sub-metering, electrical load monitoring and upgrades to existing power distribution systems.
Typical Applications
- Industrial energy monitoring systems.
- Electrical distribution panel metering.
- Energy meters with 5 A current transformer inputs.
- Power analysers and electrical monitoring equipment.
- Building energy management and sub-metering systems.
- Industrial machine power monitoring.
- Retrofit current measurement installations.
- Commercial and industrial electrical load monitoring.
Technical Specifications
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | CTA5X |
| Model | CTA5X150A5A |
| Product type | Split-core current transformer / current sensor |
| Rated primary current | 150 A |
| Rated secondary current | 5 A |
| Current ratio | 150:5 |
| Accuracy class | Class 3 |
| Rated burden | 1 VA |
| Frequency | 50 / 60 Hz |
| Hole diameter | 24 mm |
| Maximum rated system voltage | 600 V |
| Rated insulation level | 0.72 kV AC |
| Dielectric strength | 3 kV AC for 1 minute |
| Insulation class | Class B |
| Opening angle | 180° |
| Mounting type | Cable / free-hanging installation |
| Termination | Wire leads |
| Dimensions | approx. 52.5 × 34 × 65.2 mm |
| Certifications | CE / cURus |
Frequently Asked Questions
What is the Carlo Gavazzi CTA5X150A5A used for?
The CTA5X150A5A is a split-core current transformer used to measure AC current for compatible energy meters, power analysers and industrial electrical monitoring systems.
What is the current rating of the CTA5X150A5A?
The CTA5X150A5A has a 150 A rated primary current and provides a standard 5 A secondary output.
What is the accuracy class of the CTA5X150A5A?
The current transformer has Class 3 accuracy with a rated burden of 1 VA.
What conductor size can pass through the CTA5X150A5A?
The CTA5X150A5A has a circular opening with a diameter of 24 mm.
Why use a split-core current transformer?
A split-core current transformer can be opened and installed around an existing conductor without disconnecting the cable, making it particularly convenient for retrofit energy monitoring and electrical system upgrades.
Trusted by Energy Monitoring Professionals Worldwide
Carlo Gavazzi CTA split-core current transformers provide electrical engineers, system integrators and energy-management professionals with practical current measurement solutions for industrial metering, power analysis and retrofit energy monitoring installations.
