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CTD5S3005AXXX – 300 A Primary current, 5A output 26×32 mm
Carlo Gavazzi CTD5S3005AXXX is a CTD-5S split-core 300/5 A AC current transformer with Class 1 accuracy, 2.5 VA rated secondary apparent power and capacity for cables up to 26 mm or rectangular busbars up to 26 × 32 mm for electrical metering and energy monitoring.
£102.54
Why Choose the Carlo Gavazzi CTD5S3005AXXX Split-Core Current Transformer?
The Carlo Gavazzi CTD5S3005AXXX is a reliable split-core AC current transformer designed for electrical current measurement, energy monitoring and metering applications. As part of the Carlo Gavazzi CTD-5S current transformer series, its split-core construction enables installation around an existing cable or busbar without requiring the primary conductor to be disconnected.
This current transformer provides a 300 A rated primary current and 5 A secondary output, giving a 300/5 A transformation ratio for connection to compatible energy meters, power analysers and electrical monitoring equipment. The CTD5S3005AXXX provides Accuracy Class 1 with a 2.5 VA rated secondary apparent power, supporting dependable measurement performance in industrial and commercial electrical systems.
The CTD5S3005AXXX accommodates cables up to approximately 26 mm diameter and rectangular busbars up to 26 × 32 mm. Its split-core format and screw-terminal secondary connections make it particularly suitable for retrofit installations in switchboards, distribution panels and control cabinets where existing conductors need to remain in place.
Key Advantages
- Practical split-core current transformer for retrofit installations.
- 300/5 A transformation ratio for industrial electrical current measurement.
- Standard 5 A secondary output for compatible metering equipment.
- Accuracy Class 1 supports dependable current and energy measurement.
- 2.5 VA rated secondary apparent power.
- Suitable for cables up to approximately 26 mm diameter.
- Accommodates rectangular busbars up to 26 × 32 mm.
- Split-core construction simplifies installation around existing conductors.
Key Features
- Carlo Gavazzi CTD-5S current transformer series.
- 300 A rated primary current.
- 5 A rated secondary current.
- 300/5 A current transformation ratio.
- Accuracy Class 1.
- 2.5 VA rated secondary apparent power.
- FS 5 overcurrent limiting factor.
- 26 mm nominal conductor opening.
- 26 × 32 mm maximum rectangular busbar size.
- Single primary input.
- Screw-terminal secondary connections.
- Split-core construction for convenient retrofit installation.
Convenient Current Measurement for Existing Electrical Systems
Current transformers such as the Carlo Gavazzi CTD-5S convert the current flowing through a primary conductor into a lower proportional secondary current suitable for compatible measuring instruments. This allows energy meters, power analysers and monitoring systems to measure substantial electrical loads without requiring the full primary circuit current to pass directly through the measuring device.
The split-core construction of the CTD5S3005AXXX makes it particularly useful for retrofit projects. The transformer can be opened and positioned around an existing cable or busbar, helping minimise disruption to established wiring while its 300/5 A ratio provides a standard 5 A secondary signal for compatible industrial metering equipment.
Typical Applications
- Retrofit energy metering installations.
- Electrical switchboards and distribution panels.
- Power analysers and multifunction electrical meters.
- Building energy management systems.
- Industrial machinery and control cabinets.
- Electrical load and consumption monitoring.
Technical Specifications
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| Mounting Type | Busbar, Cable, DIN rail, Panel / base | |
|---|---|---|
| Device Type | Split-core CT | |
| Rated Primary Current (A) | 300 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 32 × 26 mm | |
| Accuracy Class | Class 1 | |
| Rated Burden (VA) | 2.5 VA | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-5S | |
| Model | CTD5S3005AXXX | |
| Product type | Split-core AC current transformer | |
| Rated primary current | 300 A | |
| Rated secondary current | 5 A | |
| Transformation ratio | 300/5 A | |
| Accuracy class | Class 1 | |
| Rated secondary apparent power | 2.5 VA | |
| Overcurrent limiting factor | FS 5 | |
| Opening diameter | approx. 26 mm | |
| Maximum busbar size | 26 × 32 mm | |
| Core type | Split core | |
| Secondary connection | Screw terminals | |
| Number of primary inputs | 1 | |
| Mounting type | Cable / busbar / DIN rail / panel mounting | |
| EAN / GTIN | 8030956042962 |
Frequently Asked Questions
What is the Carlo Gavazzi CTD5S3005AXXX used for?
The CTD5S3005AXXX is used to convert a 300 A primary current into a proportional 5 A secondary current for compatible electrical meters, power analysers and energy-monitoring equipment.
What is the transformation ratio of the CTD5S3005AXXX?
The current transformer has a 300/5 A transformation ratio, with a rated primary current of 300 A and a rated secondary output of 5 A.
What accuracy class does this current transformer provide?
The CTD5S3005AXXX provides Accuracy Class 1 with a rated secondary apparent power of 2.5 VA, supporting dependable current and energy measurement.
What size conductor can the CTD5S3005AXXX accommodate?
The transformer accommodates cables up to approximately 26 mm diameter and rectangular busbars up to 26 × 32 mm.
Why use a split-core current transformer?
A split-core current transformer can be opened and fitted around an existing conductor, making it particularly useful for retrofit metering and monitoring installations where disconnecting existing cables or busbars would be inconvenient.
Trusted by Electrical and Automation Professionals
Carlo Gavazzi CTD-5S split-core current transformers provide a practical solution for electrical current measurement and energy monitoring, combining straightforward retrofit installation with dependable integration into industrial and commercial metering systems.
