Carlo Gavazzi CTD2X2505AXXX solid-core current transformer with 250 A primary current, 5 A secondary output, Class 0.5 accuracy and a 24 mm cable aperture for industrial electrical measurement and energy monitoring.
SKU:CTD2X2505AXXXMPN:CTD2X2505AXXX
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Why Choose the Carlo Gavazzi CTD2X2505AXXX Current Transformer?
The Carlo Gavazzi CTD2X2505AXXX is a compact and accurate solid-core current transformer (CT) designed for AC current measurement in industrial electrical installations, energy monitoring systems and power distribution equipment. As part of the Carlo Gavazzi CTD-2X series, it provides dependable current transformation for use with compatible energy meters, power analysers and electrical monitoring equipment.
This current transformer converts the current flowing through a primary cable or busbar into a proportional secondary current that can be safely measured by compatible instrumentation. Its fixed solid-core construction provides a robust solution for permanent installations, while the stepped opening accommodates both cables and common industrial busbars. DIN rail and panel mounting options together with screw-terminal connections simplify integration into electrical panels and switchboards.
With a rated primary current of 250 A and a 5 A secondary output, the CTD2X2505AXXX provides a transformation ratio of 250/5 A. It features Class 0.5 accuracy, a 24 mm cable aperture and a rectangular opening measuring approximately 32.5 × 25.5 mm, making it well suited to accurate industrial current measurement and energy monitoring applications.
Key Advantages
Robust solid-core current transformer designed for industrial AC measurement.
250 A rated primary current for electrical distribution and monitoring applications.
5 A secondary output compatible with standard industrial metering equipment.
Class 0.5 accuracy for precise electrical measurement and energy monitoring.
24 mm cable aperture accommodates suitable primary conductors.
Rectangular opening approximately 32.5 × 25.5 mm for busbar applications.
Suitable for common 30 × 10 mm and 25 × 20 mm busbars.
DIN rail and panel mounting options support straightforward installation.
Key Features
Carlo Gavazzi CTD-2X series.
250 A rated primary current.
5 A rated secondary current.
50:1 current transformation ratio.
Class 0.5 measurement accuracy.
24 mm window diameter for cable installations.
Opening width of approximately 32.5 mm.
Opening height of approximately 25.5 mm.
Suitable for 30 × 10 mm and 25 × 20 mm busbars.
45–65 Hz operating frequency range.
DIN rail or panel mounting capability.
Screw-terminal secondary connections.
Fixed solid-core construction for permanent electrical installations.
Designed for both cable and busbar current measurement.
Reliable Current Measurement for Electrical Systems
Current transformers such as the Carlo Gavazzi CTD2X2505AXXX allow AC current to be monitored without routing the full primary current directly through the connected measuring instrument. The transformer produces a proportional 5 A secondary current that can be measured by compatible energy meters, power analysers and electrical monitoring equipment.
The CTD-2X series is designed for electrical applications where accurate measurement, robust construction and flexible installation are important. Its 250/5 A transformation ratio, Class 0.5 accuracy, cable and busbar compatibility and solid-core design make the CTD2X2505AXXX particularly suitable for permanent energy management, power distribution and electrical monitoring installations.
Typical Applications
Industrial electrical distribution panels.
Energy monitoring and metering systems.
Power analysers and electrical measuring equipment.
Building energy management systems.
Industrial machinery and automation panels.
Electrical switchboards and distribution systems.
Cable and busbar current measurement.
Commercial and industrial power monitoring installations.
Technical Specifications
Manufacturer
Carlo Gavazzi
Series
CTD-2X
Model
CTD2X2505AXXX
Product type
Solid-core current transformer
Rated primary current
250 A
Rated secondary current
5 A
Transformation ratio
250/5 A (50:1)
Accuracy class
Class 0.5
Window diameter
24 mm
Opening width
approx. 32.5 mm
Opening height
approx. 25.5 mm
Typical busbar sizes
30 × 10 mm / 25 × 20 mm
Frequency range
45–65 Hz
Construction
Fixed solid core, cable / busbar
Primary connection
Through-feed cable or busbar
Secondary connection
Screw terminals
Mounting
DIN rail or panel mounting
Width
approx. 56 mm
Length
approx. 42 mm
Weight
approx. 0.34 kg
Country of origin
Croatia
RoHS compliant
Yes
EAN
8030956039740
Frequently Asked Questions
What is the Carlo Gavazzi CTD2X2505AXXX used for?
The CTD2X2505AXXX is used to transform AC current into a proportional 5 A secondary current for electrical measurement, energy metering and power monitoring applications.
What is the primary current rating of the CTD2X2505AXXX?
The current transformer has a rated primary current of 250 A.
What secondary current does this current transformer provide?
The CTD2X2505AXXX provides a rated 5 A secondary output, giving it a transformation ratio of 250/5 A or 50:1.
What accuracy class is the CTD2X2505AXXX?
The CTD2X2505AXXX has Class 0.5 accuracy, making it suitable for accurate industrial current measurement and energy monitoring applications.
What size conductor or busbar can the CTD2X2505AXXX accommodate?
The current transformer has a 24 mm cable aperture and an opening approximately 32.5 × 25.5 mm for busbars, including common 30 × 10 mm and 25 × 20 mm arrangements.
Trusted Industrial Current Measurement
Carlo Gavazzi CTD solid-core current transformers are designed to provide dependable current measurement for industrial energy monitoring, power distribution and automation systems, combining accurate measurement with practical installation options and robust construction.
Manufacturer
Carlo Gavazzi
Series
CTD-2X
Model
CTD2X2505AXXX
Product type
Solid-core current transformer
Rated primary current
250 A
Rated secondary current
5 A
Transformation ratio
250/5 A (50:1)
Accuracy class
Class 0.5
Window diameter
24 mm
Opening width
approx. 32.5 mm
Opening height
approx. 25.5 mm
Typical busbar sizes
30 × 10 mm / 25 × 20 mm
Frequency range
45–65 Hz
Construction
Fixed solid core, cable / busbar
Primary connection
Through-feed cable or busbar
Secondary connection
Screw terminals
Mounting
DIN rail or panel mounting
Width
approx. 56 mm
Length
approx. 42 mm
Weight
approx. 0.34 kg
Country of origin
Croatia
RoHS compliant
Yes
EAN
8030956039740
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
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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...