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CTD9H40005AXXX – 4000 A Primary current, 5A output 125×35 mm
Carlo Gavazzi CTD9H40005AXXX solid-core current transformer with 4000 A primary current and 5 A secondary output for industrial electrical measurement applications.
Why Choose the Carlo Gavazzi CTD9H40005AXXX Current Transformer?
The Carlo Gavazzi CTD9H40005AXXX is a high-performance solid-core AC current transformer designed for accurate current measurement and monitoring in industrial electrical systems. Part of the trusted Carlo Gavazzi CTD-9H series, this horizontal bus-bar mounted current transformer provides a precise 4000 A primary current measurement with a 5 A secondary output for connection to energy meters, protection relays and electrical monitoring equipment.
Designed for demanding high-current power distribution applications, the CTD9H40005AXXX combines robust construction, reliable electrical performance and accurate current transformation. Its horizontal mounting configuration supports large bus-bar installations up to 35 x 125 mm, making it suitable for industrial switchboards, control panels and electrical distribution systems.
With a 4000 A primary current rating and 5 A secondary output, the CTD9H40005AXXX is ideal for energy measurement, load monitoring and electrical protection applications where dependable current sensing is required.
Key Advantages
- 4000 A solid-core current transformer for high-current industrial measurement applications.
- 5 A secondary output compatible with standard measuring and protection devices.
- Reliable current transformation for industrial power monitoring systems.
- Horizontal bus-bar mounting design for large electrical installations.
- Supports bus-bars up to 35 x 125 mm.
- Robust construction designed for industrial switchgear environments.
Key Features
- Carlo Gavazzi CTD-9H series solid-core current transformer.
- 4000 A rated primary current.
- 5 A rated secondary current.
- Horizontal bus-bar mounting configuration.
- Large aperture design for high-current bus-bar applications.
- Operating frequency range of 48–62 Hz.
- Designed for industrial energy measurement and protection applications.
- Compatible with standard current measurement instruments.
Reliable Current Measurement for Industrial Power Systems
Current transformers such as the Carlo Gavazzi CTD9H40005AXXX 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 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.
- High-current switchgear installations.
- Energy monitoring and power measurement systems.
- Electrical protection and metering systems.
- Control cabinets and industrial automation power management.
- Large commercial and industrial power distribution systems.
Technical Specifications
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| Mounting Type | Busbar | |
|---|---|---|
| Device Type | Solid-core CT | |
| Rated Primary Current (A) | 4000 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 125 × 35 mm | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | CTD-9H | |
| Model | CTD9H40005AXXX | |
| Product type | Solid-core AC current transformer | |
| Primary current | 4000 A | |
| Secondary current | 5 A | |
| Mounting type | Horizontal bus-bar mounting | |
| Maximum bus-bar size | 35 x 125 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 | 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 material UL 94 V-0 | |
| Standards | EN61869-2 |
Frequently Asked Questions
What is the Carlo Gavazzi CTD9H40005AXXX used for?
The CTD9H40005AXXX is used for measuring and monitoring high AC currents in industrial electrical systems, switchboards and energy management applications.
What primary current does this current transformer measure?
The CTD9H40005AXXX has a rated primary current of 4000 A.
What is the secondary output of the CTD9H40005AXXX?
The current transformer provides a standard 5 A secondary output for connection to compatible measuring and protection devices.
What mounting type does this current transformer use?
The CTD9H40005AXXX uses a horizontal bus-bar mounting design suitable for high-current industrial power distribution systems.
Where is the CTD9H40005AXXX typically installed?
The current transformer is typically installed inside electrical switchboards, control panels and industrial distribution equipment.
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.
