Carlo Gavazzi CTD2X3005AXXX CTD-2X solid-core current transformer with a 300 A primary rating, 5 A secondary output, class 0.5 accuracy and 24 mm cable aperture for electrical metering and monitoring applications.
SKU:CTD2X3005AXXXMPN:CTD2X3005AXXX
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Why Choose the Carlo Gavazzi CTD2X3005AXXX CTD-2X Current Transformer?
The Carlo Gavazzi CTD2X3005AXXX is a compact and accurate solid-core current transformer (CT) designed for AC current measurement in electrical distribution, energy monitoring and industrial control applications. As part of the Carlo Gavazzi CTD-2X current transformer series, it converts high primary currents into a standard secondary signal suitable for compatible meters, analysers and monitoring equipment.
This current transformer features a 300 A primary current rating and 5 A secondary output, providing a 300/5 A transformation ratio. Its accuracy class 0.5 makes it suitable for applications requiring dependable current measurement, including energy metering, electrical monitoring and industrial power management systems.
The CTD2X3005AXXX has a 24 mm cable aperture and supports busbars up to 32 mm wide, allowing installation around suitable conductors and busbars. Integrated DIN rail mounting and screw-terminal secondary connections help simplify installation within electrical switchboards, distribution panels and industrial control cabinets.
Key Advantages
Solid-core 300/5 A current transformer for accurate AC current measurement.
Accuracy class 0.5 for dependable metering and monitoring applications.
5 A secondary output compatible with a wide range of industrial meters and power analysers.
24 mm cable aperture accommodates suitable electrical conductors.
Stepped aperture supports common busbar sizes for flexible installation.
Integrated DIN rail mounting simplifies installation in electrical panels.
Screw-terminal secondary connections provide secure electrical termination.
Key Features
Carlo Gavazzi CTD-2X current transformer series.
300 A rated primary current.
5 A rated secondary current.
300/5 A transformation ratio.
Accuracy class 0.5.
7 VA rated secondary burden at accuracy class 0.5.
50/60 Hz operating frequency.
0.72 kV maximum system voltage.
24 mm hole diameter for cable installation.
Maximum busbar width of approximately 32 mm.
Integrated DIN rail mounting and screw-terminal connections.
Reliable Current Measurement for Electrical Monitoring
Current transformers such as the Carlo Gavazzi CTD2X3005AXXX allow high AC currents to be measured safely and conveniently by converting the primary conductor current into a proportional lower secondary current. The resulting 5 A signal can be connected to compatible energy meters, multifunction meters, power analysers and monitoring equipment.
The CTD-2X series is designed for installation in electrical distribution and industrial monitoring systems. Its solid-core construction, class 0.5 measurement accuracy, versatile conductor aperture and standard 5 A output make the CTD2X3005AXXX well suited to new panel builds, switchboards and energy monitoring installations where a 300 A primary current rating is required.
Typical Applications
Electrical energy metering and monitoring systems.
Industrial switchboards and distribution panels.
Power analysers and multifunction electrical meters.
Building energy management systems.
Industrial automation and control panels.
Load monitoring and electrical consumption measurement.
Technical Specifications
Manufacturer
Carlo Gavazzi
Series
CTD-2X
Model
CTD2X3005AXXX
Product type
Solid-core current transformer
Rated primary current
300 A
Rated secondary current
5 A
Transformation ratio
300/5 A
Accuracy class
0.5
Rated secondary burden
7 VA
Operating frequency
50/60 Hz
Maximum system voltage
0.72 kV
Rated insulation level
3 kV / 1 min at 50 Hz
Security factor
≤ 5
Hole diameter
24 mm
Maximum busbar width
32 mm
Supported horizontal busbars
up to 32 × 5, 30 × 10 or 25 × 20 mm
Supported vertical busbar
up to 25 × 12 mm
Secondary connection
Screw terminals
Mounting type
DIN rail / panel mounting
Dimensions (H × W × D)
approx. 86 × 56 × 42 mm
EAN / GTIN
8030956040357
Frequently Asked Questions
What is the Carlo Gavazzi CTD2X3005AXXX used for?
The CTD2X3005AXXX is used to convert a primary AC current of up to 300 A into a proportional 5 A secondary signal for compatible electrical meters, power analysers and monitoring equipment.
What is the current ratio of the CTD2X3005AXXX?
The current transformer has a 300/5 A ratio, with a rated primary current of 300 A and a rated secondary current of 5 A.
What accuracy class is the CTD2X3005AXXX?
The Carlo Gavazzi CTD2X3005AXXX has an accuracy class of 0.5, making it suitable for accurate electrical measurement and energy monitoring applications.
What size conductor can pass through the current transformer?
The CTD2X3005AXXX has a 24 mm diameter cable aperture and can accommodate suitable busbars up to approximately 32 mm wide.
Where is the CTD2X3005AXXX typically installed?
The current transformer is typically installed in electrical switchboards, distribution panels, metering systems and industrial control cabinets, with integrated DIN rail mounting available for convenient panel installation.
Trusted Current Measurement from Carlo Gavazzi
Carlo Gavazzi CTD current transformers provide dependable current measurement for energy management, electrical metering and industrial monitoring systems, combining standardised secondary outputs with practical installation options for modern electrical panels.
Manufacturer
Carlo Gavazzi
Series
CTD-2X
Model
CTD2X3005AXXX
Product type
Solid-core current transformer
Rated primary current
300 A
Rated secondary current
5 A
Transformation ratio
300/5 A
Accuracy class
0.5
Rated secondary burden
7 VA
Operating frequency
50/60 Hz
Maximum system voltage
0.72 kV
Rated insulation level
3 kV / 1 min at 50 Hz
Security factor
≤ 5
Hole diameter
24 mm
Maximum busbar width
32 mm
Supported horizontal busbars
up to 32 × 5, 30 × 10 or 25 × 20 mm
Supported vertical busbar
up to 25 × 12 mm
Secondary connection
Screw terminals
Mounting type
DIN rail / panel mounting
Dimensions (H × W × D)
approx. 86 × 56 × 42 mm
EAN / GTIN
8030956040357
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...