Carlo Gavazzi CTD2X405AXXX CTD-2X solid-core current transformer with a 40 A primary rating, 5 A secondary output, class 3 accuracy and 24 mm cable aperture for electrical current monitoring applications.
£43.11
The Carlo Gavazzi CTD2X405AXXX is a compact 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 higher primary currents into a standard secondary current suitable for compatible meters, power analysers and monitoring equipment.
This current transformer features a 40 A primary current rating and 5 A secondary output, providing a 40/5 A transformation ratio. With accuracy class 3, it provides a practical solution for general electrical current monitoring applications where a standard 5 A secondary measurement signal is required.
The CTD2X405AXXX has a 24 mm cable aperture and accommodates busbars up to 32 mm wide. Its stepped aperture can accommodate common busbar formats including 30 × 10 mm and 25 × 20 mm, while screw terminals and an integrated DIN rail mounting facility help simplify installation inside electrical switchboards, distribution panels and industrial control cabinets.
Current transformers such as the Carlo Gavazzi CTD2X405AXXX allow AC current to be monitored conveniently by converting the current flowing through the primary conductor into a proportional lower secondary current. The resulting 5 A signal can be connected to compatible energy meters, multifunction meters, power analysers and electrical monitoring equipment.
The CTD-2X series is designed for electrical distribution and industrial monitoring installations where dependable current transformation and practical panel installation are required. Its solid-core construction, stepped conductor aperture, standard 5 A secondary output and integrated DIN rail mounting make the CTD2X405AXXX particularly suitable for new switchboards, control panels and monitoring systems requiring a 40 A primary current rating.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | CTD-2X |
| Model | CTD2X405AXXX |
| Product type | Solid-core current transformer |
| Rated primary current | 40 A |
| Rated secondary current | 5 A |
| Transformation ratio | 40/5 A |
| Accuracy class | 3 |
| Hole diameter | 24 mm |
| Maximum busbar width | 32 mm |
| Stepped busbar aperture | suitable for 30 × 10 mm, 25 × 20 mm and similar busbars |
| Secondary connection | Screw terminals |
| Mounting type | DIN rail / panel mounting |
| EAN / GTIN | 8030956040265 |
The CTD2X405AXXX is used to convert a 40 A primary AC current into a proportional 5 A secondary current for compatible electrical meters, power analysers and monitoring equipment.
The current transformer has a 40/5 A ratio, with a rated primary current of 40 A and a rated secondary current of 5 A.
The Carlo Gavazzi CTD2X405AXXX has an accuracy class of 3, making it suitable for general electrical current monitoring applications.
The CTD2X405AXXX has a 24 mm diameter cable aperture and supports busbars up to 32 mm wide, including common stepped-aperture formats such as 30 × 10 mm and 25 × 20 mm.
The current transformer is typically installed in electrical switchboards, distribution panels, metering systems and industrial control cabinets, with an integrated DIN rail mounting facility provided for convenient installation.
Carlo Gavazzi CTD current transformers provide practical current measurement solutions for energy management, electrical metering and industrial monitoring systems, combining standardised secondary outputs with flexible conductor apertures and convenient panel installation.
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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...