Why Choose the Carlo Gavazzi CTD3X3001AXXX Current Transformer?
The Carlo Gavazzi CTD3X3001AXXX is a high-quality solid-core AC current transformer designed for accurate current measurement in industrial power distribution, energy monitoring and automation applications. As part of the reliable Carlo Gavazzi CTD-3X series, it provides flexible cable and bus-bar mounting capability together with DIN-rail and panel installation options for straightforward integration into electrical control systems.
This current transformer converts high primary current into a standard secondary output suitable for connection to measuring instruments, energy meters and electrical protection equipment. The CTD-3X series features a compact solid-core construction, integrated DIN-rail mounting holder, removable panel fixing clips, isolated bus-bar fixing screws and sealable terminal covers for dependable industrial installation.
With a rated primary current of 300 A and a secondary output of 1 A, the CTD3X3001AXXX is suitable for industrial applications requiring accurate current monitoring and reliable measurement performance. It supports cable and bus-bar mounting with a maximum cable diameter of 41 mm and multiple bus-bar installation configurations.
Key Advantages
300 A / 1 A current transformation ratio for industrial current measurement applications.
Solid-core current transformer design for stable and reliable operation.
Accuracy class 0.5 for precise energy monitoring and metering.
Flexible installation with DIN-rail, panel and bus-bar mounting.
Secure screw terminals with sealable terminal covers.
Suitable for industrial energy monitoring, metering and electrical protection systems.
Key Features
Carlo Gavazzi CTD-3X series solid-core current transformer.
300 A rated primary current.
1 A rated secondary current.
Accuracy class 0.5 for precise current measurement.
41 mm cable diameter opening.
Maximum bus-bar mounting capability up to 51 × 15 mm.
Integrated DIN-rail mounting holder.
Removable panel fixing clips.
Up to six isolated bus-bar fixing screws.
Double screw terminals supporting up to 8-wire connections.
Sealable terminal block covers for improved installation security.
Reliable Current Measurement for Industrial Systems
Current transformers such as the Carlo Gavazzi CTD3X3001AXXX provide a safe and efficient method of monitoring AC currents by reducing primary current values to a standard secondary output. This enables connection to electrical meters, monitoring equipment and protection systems without directly measuring high-current conductors.
The CTD-3X series combines robust construction with flexible mounting options, making it suitable for industrial control cabinets, electrical distribution panels and automation systems where dependable current measurement is required.
Typical Applications
Industrial energy monitoring systems.
Electrical distribution panels.
Automation control cabinets.
Power measurement and metering equipment.
Motor monitoring applications.
Industrial electrical protection systems.
Technical Specifications
Manufacturer
Carlo Gavazzi
Series
CTD-3X
Model
CTD3X3001AXXX
Product type
Solid-core AC current transformer
Rated primary current
300 A
Rated secondary current
1 A
Accuracy class
0.5
Burden
7 VA
Operating frequency
45–65 Hz
Maximum system voltage
0.72 kV
Rated insulation level
3 kV / 1 min at 50 Hz
Insulation class
E
Mounting type
DIN-rail, bus-bar and panel mounting
Cable diameter
Maximum 41 mm
Horizontal bus-bar sizes
Maximum 51 × 15 mm, 40 × 20 mm or 32 × 32 mm
Vertical bus-bar size
Maximum 40 × 20 mm
Protection rating
IP00 / IP20 with sealable terminal covers
Housing material
Self-extinguishing ABS UL94 V-0
Standards
EN61869-2
Approvals
CE, cURus and CSA
Frequently Asked Questions
What is the Carlo Gavazzi CTD3X3001AXXX used for?
The CTD3X3001AXXX is used for measuring AC current in industrial electrical systems and providing a reduced 1 A secondary signal for monitoring and metering equipment.
What current ratio does this transformer provide?
The transformer provides a 300 A primary current measurement with a 1 A secondary output.
What accuracy class does the CTD3X3001AXXX have?
The CTD3X3001AXXX provides class 0.5 accuracy for precise industrial current measurement applications.
How can this current transformer be mounted?
The CTD3X3001AXXX supports DIN-rail, panel and bus-bar mounting for flexible installation in industrial systems.
What cable and bus-bar sizes are supported?
The transformer supports cables up to 41 mm diameter and multiple bus-bar mounting configurations including up to 51 × 15 mm horizontal bus-bars.
Trusted by Industrial Energy Monitoring Professionals
Carlo Gavazzi CTD current transformers are trusted by electrical engineers and automation professionals for accurate measurement, flexible installation and reliable monitoring of industrial power systems.
Manufacturer
Carlo Gavazzi
Series
CTD-3X
Model
CTD3X3001AXXX
Product type
Solid-core AC current transformer
Rated primary current
300 A
Rated secondary current
1 A
Accuracy class
0.5
Burden
7 VA
Operating frequency
45–65 Hz
Maximum system voltage
0.72 kV
Rated insulation level
3 kV / 1 min at 50 Hz
Insulation class
E
Mounting type
DIN-rail, bus-bar and panel mounting
Cable diameter
Maximum 41 mm
Horizontal bus-bar sizes
Maximum 51 × 15 mm, 40 × 20 mm or 32 × 32 mm
Vertical bus-bar size
Maximum 40 × 20 mm
Protection rating
IP00 / IP20 with sealable terminal covers
Housing material
Self-extinguishing ABS UL94 V-0
Standards
EN61869-2
Approvals
CE, cURus and CSA
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.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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Customers supported
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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...