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CTD9H4005AXXX – 400 A Primary current, 5A output 125×35 mm
Carlo Gavazzi CTD9H4005AXXX solid-core current transformer with 400 A primary current and 5 A secondary output for industrial electrical measurement applications.
£107.47
Why Choose the Carlo Gavazzi CTD9H4005AXXX Current Transformer?
The Carlo Gavazzi CTD9H4005AXXX is a reliable solid-core AC current transformer designed for accurate current measurement and monitoring in industrial electrical systems. Part of the proven Carlo Gavazzi CTD-9H series, this horizontal bus-bar mounted current transformer provides a 400 A primary current measurement with a 5 A secondary output for connection to energy meters, monitoring equipment and protection devices.
Designed for industrial power distribution applications, the CTD9H4005AXXX combines compact construction, reliable electrical performance and straightforward installation. Its horizontal mounting design supports bus-bars up to 35 x 125 mm, making it suitable for switchboards, control panels and electrical distribution equipment.
With a 400 A primary current rating and 5 A secondary output, the CTD9H4005AXXX is ideal for current monitoring, energy measurement and electrical protection applications requiring a dependable current transformation solution.
Key Advantages
- 400 A solid-core current transformer for industrial measurement applications.
- 5 A secondary output compatible with standard measuring and protection devices.
- Horizontal bus-bar mounting design for easy panel integration.
- Supports bus-bars up to 35 x 125 mm.
- Compact design suitable for switchgear and distribution systems.
- Reliable current measurement for industrial energy monitoring applications.
Key Features
- Carlo Gavazzi CTD-9H series solid-core current transformer.
- 400 A rated primary current.
- 5 A rated secondary current.
- Class 1 accuracy.
- Horizontal bus-bar mounting configuration.
- 36 mm hole diameter for conductor installation.
- Operating frequency range of 48–62 Hz.
- Designed according to EN61869-2 standards.
Reliable Current Measurement for Industrial Power Systems
Current transformers such as the Carlo Gavazzi CTD9H4005AXXX provide safe and accurate current reduction for electrical measurement devices by converting high primary currents into standardised secondary signals. This enables efficient monitoring of electrical loads while maintaining safe separation between high-current conductors and measurement equipment.
The CTD-9H series is designed for industrial switchgear, energy management systems and electrical distribution equipment where dependable current measurement and long-term reliability are essential.
Typical Applications
- Industrial electrical distribution panels.
- Switchgear and control cabinets.
- Energy monitoring and power measurement systems.
- Electrical protection and metering systems.
- Industrial automation power management.
- Commercial and industrial electrical installations.
Technical Specifications
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| Mounting Type | Busbar | |
|---|---|---|
| Device Type | Solid-core CT | |
| Rated Primary Current (A) | 400 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 125 × 35 mm | |
| Accuracy Class | Class 1 | |
| Rated Burden (VA) | 3 VA | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-9H | |
| Model | CTD9H4005AXXX | |
| Product type | Solid-core AC current transformer | |
| Primary current | 400 A | |
| Secondary current | 5 A | |
| Accuracy class | Class 1 | |
| Rated secondary apparent power | 3 VA | |
| Mounting type | Horizontal bus-bar mounting | |
| Maximum bus-bar size | 35 x 125 mm | |
| Hole diameter | 36 mm | |
| Operating frequency | 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) | |
| Short-time thermal current | Typical 100 In / 1 s | |
| Dynamic current rating | 2.5 Ith | |
| Protection rating | IP00 without terminal covers / IP20 with sealable terminal covers and wire terminals | |
| Housing material | Self-extinguishing PA66 UL 94 V-0 | |
| Standards | EN61869-2 |
Frequently Asked Questions
What is the Carlo Gavazzi CTD9H4005AXXX used for?
The CTD9H4005AXXX is used for measuring and monitoring AC current in industrial electrical systems, switchboards and energy management applications.
What primary current does this current transformer measure?
The CTD9H4005AXXX has a rated primary current of 400 A.
What is the secondary output of the CTD9H4005AXXX?
The current transformer provides a standard 5 A secondary output for connection to compatible measuring and protection devices.
What accuracy class does this current transformer provide?
The CTD9H4005AXXX provides Class 1 accuracy for reliable current measurement.
What mounting type does this current transformer use?
The CTD9H4005AXXX uses a horizontal bus-bar mounting design suitable for industrial electrical distribution systems.
Trusted by Industrial Power Engineers Worldwide
Carlo Gavazzi CTD current transformers are widely used by electrical engineers and automation professionals for accurate measurement, monitoring and protection of industrial power systems.
