Carlo Gavazzi CTD5S4005AXXX split-core current transformer with 400 A primary current, 5 A output and 26 × 32 mm window for industrial electrical measurement applications.
£122.57
The Carlo Gavazzi CTD5S4005AXXX is a high-performance split-core AC current transformer designed for accurate current measurement in industrial electrical systems, energy monitoring equipment and automation applications. Part of the Carlo Gavazzi CTD-5S current transformer series, it provides reliable current transformation with simple installation around existing cables or bus-bars.
The CTD-5S series is designed with a split-core construction, allowing the transformer to be opened and installed without disconnecting the monitored conductor. It includes sealable split-core fixing screws, double screw terminals and a robust housing suitable for demanding electrical measurement environments.
With a 400 A primary current rating, 5 A secondary output and a 26 × 32 mm window size, the CTD5S4005AXXX is ideal for current monitoring, energy management and electrical measurement applications requiring dependable performance and flexible installation.
Current transformers such as the Carlo Gavazzi CTD5S4005AXXX provide a safe method of converting high primary currents into standard secondary measurement signals. This allows electrical meters, monitoring devices and energy management systems to measure current accurately while maintaining electrical isolation.
The CTD-5S series is designed for industrial applications where reliable measurement, easy installation and secure mounting are essential. Its split-core construction makes it particularly suitable for retrofit installations and existing electrical systems.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | CTD-5S |
| Model | CTD5S4005AXXX |
| Product type | Split-core AC current transformer |
| Primary current | 400 A |
| Secondary current | 5 A |
| Accuracy class | Class 1 at 5 VA maximum burden |
| Operating frequency | 48–62 Hz |
| Maximum system voltage | 0.72 kV |
| Rated insulation level | 3 kV / 1 min at 50 Hz |
| Insulation class | E (maximum 75 °C) |
| Extended current rating | 120% |
| Security factor | FS ≤ 5 |
| Mounting type | Bus-bar / cable mounting |
| Window size | 26 × 32 mm |
| Housing material | Self-extinguishing ABS UL 94 V-0 |
| Protection rating | IP00 without terminal covers / IP20 with sealable terminal covers |
| Standards | EN61869-2 |
| Working temperature | -25 °C to +60 °C |
| Approvals | CE, cURus and CSA |
The CTD5S4005AXXX is a split-core AC current transformer used for accurate current measurement in industrial monitoring, energy management and electrical distribution applications.
The Carlo Gavazzi CTD5S4005AXXX has a rated primary current of 400 A.
The transformer provides a standard 5 A secondary current output.
The current transformer has a 26 × 32 mm window for cable or bus-bar installation.
The CTD5S4005AXXX provides Class 1 accuracy at 5 VA maximum burden and Class 3 accuracy at 10 VA maximum burden.
Carlo Gavazzi CTD-5S current transformers provide accurate current measurement, secure split-core installation and reliable performance for modern industrial energy monitoring and automation applications.
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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...