Carlo Gavazzi CTD8S12505AXXX split-core current transformer with 1250 A primary current and 5 A secondary output for high-current industrial measurement applications.
£164.46
The Carlo Gavazzi CTD8S12505AXXX is a high-current split-core AC current transformer designed for accurate measurement and monitoring of large electrical currents in industrial power distribution systems. As part of the robust Carlo Gavazzi CTD-8S current transformer series, it provides a reliable 5 A secondary output for connection to energy meters, monitoring devices and electrical protection equipment.
The CTD8S12505AXXX features a split-core design that allows easier installation around existing bus-bars without requiring complete circuit disconnection. Its secure fixing system, sealable terminal covers and flexible mounting options make it suitable for industrial switchboards, electrical panels and high-current distribution equipment.
With a 1250 A primary current rating, 5 A secondary output and a 31 mm × 81 mm opening, the CTD8S12505AXXX is designed for reliable current measurement in demanding industrial electrical applications.
Current transformers such as the Carlo Gavazzi CTD8S12505AXXX enable safe measurement of high electrical currents by converting the primary current into a standard secondary signal. This allows connection to energy meters, monitoring systems and protection equipment without directly measuring high-current circuits.
The CTD-8S series is designed for industrial environments where accurate measurement, secure installation and long-term reliability are essential. Its split-core design makes it particularly suitable for retrofit projects and existing electrical installations.
| Manufacturer | Carlo Gavazzi |
|---|---|
| Series | CTD-8S |
| Model | CTD8S12505AXXX |
| Product type | Split-core AC current transformer |
| Primary current | 1250 A |
| Secondary current | 5 A |
| Current ratio | 1250:5 |
| Accuracy class | Class 1 |
| Rated secondary apparent power | 12 VA |
| Frequency range | 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) |
| Security factor | ≤5 |
| Mounting type | Bus-bar / DIN rail / panel mounting |
| Opening size | 31 mm × 81 mm |
| Maximum bus-bar size | 30 mm × 80 mm |
| Housing material | Self-extinguishing PA66 UL 94 V-0 |
| Protection rating | IP20 with sealable terminal covers |
| Working temperature | -25 °C to product-specific maximum rating |
The CTD8S12505AXXX is used for measuring high AC currents and providing a standard 5 A secondary output for industrial monitoring and metering equipment.
The transformer has a 1250:5 ratio, with a 1250 A primary current rating and 5 A secondary output.
The CTD8S12505AXXX is a split-core bus-bar current transformer designed for high-current industrial installations.
The transformer supports bus-bars up to 30 mm × 80 mm.
The CTD8S12505AXXX provides Class 1 accuracy for reliable industrial current measurement applications.
Carlo Gavazzi CTD-8S current transformers are widely used in high-current industrial measurement applications where reliable monitoring, safe installation and accurate energy management are required.
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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...