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CTD8S12505AXXX – 1250 A Primary current, 5A output 30×80 mm
Carlo Gavazzi CTD8S12505AXXX split-core current transformer with 1250 A primary current and 5 A secondary output for high-current industrial measurement applications.
£139.79
Why Choose the Carlo Gavazzi CTD8S12505AXXX Current Transformer?
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.
Key Advantages
- 1250 A / 5 A current transformation ratio for high-current industrial measurement.
- Split-core construction simplifies installation and retrofit applications.
- Class 1 accuracy suitable for industrial energy monitoring and metering.
- 30 mm × 80 mm maximum bus-bar compatibility for large conductors.
- Multiple isolated fixing screws provide secure bus-bar mounting.
- Sealable terminal covers improve safety and installation protection.
Key Features
- Carlo Gavazzi CTD-8S series split-core current transformer.
- 1250 A rated primary current.
- 5 A rated secondary output.
- 1250:5 current ratio.
- Class 1 accuracy.
- 31 mm opening diameter.
- Maximum bus-bar size: 30 mm × 80 mm.
- Operating frequency range of 48–62 Hz.
- Split-core opening system with sealable fixing screws.
- Double screw terminals supporting up to 8-wire connections.
Reliable Current Measurement for High-Power Electrical Systems
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.
Typical Applications
- Industrial power distribution switchboards.
- Large electrical panels and control cabinets.
- Energy monitoring and power management systems.
- Bus-bar current measurement installations.
- Industrial metering and protection equipment.
- Automation and electrical monitoring systems.
Technical Specifications
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| Mounting Type | Busbar, DIN rail, Panel / base | |
|---|---|---|
| Device Type | Split-core CT | |
| Rated Primary Current (A) | 1250 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 80 × 30 mm | |
| Accuracy Class | Class 1 | |
| Rated Burden (VA) | 12 VA | |
| IP Rating | IP20 | |
| 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 |
Frequently Asked Questions
What is the Carlo Gavazzi CTD8S12505AXXX used for?
The CTD8S12505AXXX is used for measuring high AC currents and providing a standard 5 A secondary output for industrial monitoring and metering equipment.
What is the current ratio of this transformer?
The transformer has a 1250:5 ratio, with a 1250 A primary current rating and 5 A secondary output.
What type of current transformer is the CTD8S12505AXXX?
The CTD8S12505AXXX is a split-core bus-bar current transformer designed for high-current industrial installations.
What bus-bar size does this current transformer support?
The transformer supports bus-bars up to 30 mm × 80 mm.
What accuracy class does the CTD8S12505AXXX provide?
The CTD8S12505AXXX provides Class 1 accuracy for reliable industrial current measurement applications.
Trusted by Industrial Electrical Engineers Worldwide
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.
