CTD8S12005AXXX – 1200 A Primary current, 5A output 30×80 mm
Carlo Gavazzi CTD8S12005AXXX split-core current transformer with 1200 A primary current and 5 A secondary output for high-current industrial measurement applications.
SKU:CTD8S12005AXXXMPN:CTD8S12005AXXX
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Why Choose the Carlo Gavazzi CTD8S12005AXXX Current Transformer?
The Carlo Gavazzi CTD8S12005AXXX is a high-current split-core AC current transformer designed for accurate measurement and monitoring of large electrical currents in industrial power distribution systems. Part of the advanced Carlo Gavazzi CTD-8S current transformer series, it provides a reliable 5 A secondary output for connection to energy meters, monitoring devices and protection equipment.
Designed for bus-bar installations, the CTD8S12005AXXX features a split-core construction that allows easier installation around existing conductors without requiring complete circuit disconnection. Its robust design includes secure bus-bar fixing, sealable terminal covers and flexible mounting options for industrial switchboards and electrical distribution equipment.
With a 1200 A primary current rating, 5 A secondary output and a 30 mm × 80 mm bus-bar aperture, this current transformer is suited to high-power measurement applications where dependable current monitoring and electrical isolation are required.
Key Advantages
1200 A / 5 A current transformation ratio for high-current industrial applications.
Split-core design enables simplified installation on existing bus-bar systems.
30 mm × 80 mm bus-bar mounting size for large conductor applications.
Class 1 accuracy suitable for industrial measurement and monitoring systems.
Secure fixing system with isolated bus-bar mounting screws.
Sealable terminal covers improve installation safety and protection.
Key Features
Carlo Gavazzi CTD-8S series split-core current transformer.
1200 A rated primary current.
5 A rated secondary output.
1200:5 current ratio.
Class 1 accuracy.
Maximum bus-bar size: 30 mm × 80 mm.
Operating frequency range of 48–62 Hz.
Split-core design for easier retrofit installation.
Double screw terminals supporting up to 8-wire connections.
Bus-bar mounting with multiple isolated fixing screws.
Reliable Current Measurement for High-Power Electrical Systems
Current transformers such as the Carlo Gavazzi CTD8S12005AXXX allow high electrical currents to be measured safely by reducing the primary current to a standard secondary signal. This enables accurate monitoring through electrical meters, energy management systems and industrial protection equipment.
The CTD-8S series is engineered for demanding industrial environments, combining split-core installation convenience with reliable current measurement performance. Its bus-bar mounting design makes it suitable for large distribution systems where accurate current monitoring is essential.
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
Manufacturer
Carlo Gavazzi
Series
CTD-8S
Model
CTD8S12005AXXX
Product type
Split-core AC current transformer
Primary current
1200 A
Secondary current
5 A
Current ratio
1200:5
Accuracy class
Class 1
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 mounting
Bus-bar size
Maximum 30 mm × 80 mm
Housing material
Self-extinguishing PA66 UL 94 V-0
Terminal type
Double screw terminals
Protection rating
IP00 without terminal covers / IP20 with sealable terminal covers
Working temperature
-25 °C to product-specific maximum rating
Frequently Asked Questions
What is the Carlo Gavazzi CTD8S12005AXXX used for?
The CTD8S12005AXXX is used for measuring high AC currents in industrial electrical systems and providing a standard 5 A secondary output for monitoring and metering equipment.
What is the current ratio of this transformer?
The current transformer has a 1200:5 ratio, with a 1200 A primary current rating and 5 A secondary output.
What type of current transformer is the CTD8S12005AXXX?
The CTD8S12005AXXX is a split-core bus-bar type 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 CTD8S12005AXXX provide?
The CTD8S12005AXXX 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.
Manufacturer
Carlo Gavazzi
Series
CTD-8S
Model
CTD8S12005AXXX
Product type
Split-core AC current transformer
Primary current
1200 A
Secondary current
5 A
Current ratio
1200:5
Accuracy class
Class 1
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 mounting
Bus-bar size
Maximum 30 mm × 80 mm
Housing material
Self-extinguishing PA66 UL 94 V-0
Terminal type
Double screw terminals
Protection rating
IP00 without terminal covers / IP20 with sealable terminal covers
Working temperature
-25 °C to product-specific maximum rating
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...