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CTD3X2505AXXX – CTD-3X Current Transformer 250A
Carlo Gavazzi CTD3X2505AXXX solid-core AC current transformer designed for accurate 250 A to 5 A current measurement in industrial electrical systems.
£41.84
Why Choose the Carlo Gavazzi CTD3X2505AXXX Current Transformer?
The Carlo Gavazzi CTD3X2505AXXX is a high-performance 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 easy 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 250 A and a secondary output of 5 A, the CTD3X2505AXXX is suitable for industrial applications requiring accurate current monitoring and reliable measurement performance. It features a 41 mm hole diameter and supports bus-bar mounting up to 51 mm wide.
Key Advantages
- 250 A / 5 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.
- 250 A rated primary current.
- 5 A rated secondary current.
- Accuracy class 0.5 for precise current measurement.
- 41 mm hole diameter.
- Maximum bus-bar width of 51 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 CTD3X2505AXXX 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
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| Mounting Type | Busbar, DIN rail, Panel / base | |
|---|---|---|
| Rated Primary Current (A) | 250 A | |
| Secondary Current / Output | 5 A | |
| Accuracy Class | Class 0.5 | |
| Rated Burden (VA) | 3.5 VA | |
| Device Type | Solid-core CT | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-3X | |
| Model | CTD3X2505AXXX | |
| Product type | Solid-core AC current transformer | |
| Rated primary current | 250 A | |
| Rated secondary current | 5 A | |
| Accuracy class | 0.5 | |
| Burden | 3.5 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 CTD3X2505AXXX used for?
The CTD3X2505AXXX is used for measuring AC current in industrial electrical systems and providing a reduced 5 A secondary signal for monitoring and metering equipment.
What current ratio does this transformer provide?
The transformer provides a 250 A primary current measurement with a 5 A secondary output.
What accuracy class does the CTD3X2505AXXX have?
The CTD3X2505AXXX provides class 0.5 accuracy for precise industrial current measurement applications.
How can this current transformer be mounted?
The CTD3X2505AXXX 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 bus-bars up to 51 mm wide.
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.
