CTD9V4005AXXX - 400 A Primary current, 5A output 125x35 mm

CTD9V4005AXXX – 400 A Primary current, 5A output 125×35 mm

Carlo Gavazzi CTD9V4005AXXX solid-core current transformer with a 400 A primary current rating and 5 A secondary output for industrial current measurement applications.

SKU: CTD9V4005AXXXMPN: CTD9V4005AXXX
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Why Choose the Carlo Gavazzi CTD9V4005AXXX Current Transformer?

The Carlo Gavazzi CTD9V4005AXXX is a high-performance AC solid-core current transformer designed for accurate current measurement in industrial power monitoring, electrical metering and protection applications. As part of the Carlo Gavazzi CTD-9V current transformer series, it provides reliable conversion of high primary currents into a standard 5 A secondary output for connection to measurement and monitoring equipment.

This current transformer features a vertical bus-bar mounting design with a compact 125 × 35 mm window format, making it suitable for installation in industrial switchboards, distribution panels and electrical control systems. The CTD-9V series is engineered for dependable operation with robust construction and secure mounting options for demanding electrical environments.

With a rated primary current of 400 A and a 5 A secondary output, the CTD9V4005AXXX is ideal for current monitoring applications requiring reliable measurement performance and straightforward integration into industrial power systems.

Key Advantages

  • Reliable solid-core AC current transformer for industrial measurement applications.
  • 400 A primary current rating suitable for medium-current electrical installations.
  • 5 A secondary output compatible with standard measurement and protection devices.
  • 125 × 35 mm window size for bus-bar installation applications.
  • Accurate current transformation for energy monitoring and electrical control systems.
  • Robust construction designed for industrial switchgear and power distribution applications.

Key Features

  • Carlo Gavazzi CTD-9V series current transformer.
  • 400 A rated primary current.
  • 5 A rated secondary current output.
  • Vertical mounting orientation for bus-bar installations.
  • 36 mm aperture / maximum bus-bar width.
  • Operating frequency range of 48–62 Hz.
  • Maximum system voltage up to 0.72 kV.
  • Designed for industrial current measurement and energy monitoring.

Reliable Current Measurement for Industrial Power Systems

Current transformers such as the Carlo Gavazzi CTD9V4005AXXX enable safe and accurate measurement of high electrical currents by reducing primary current levels to a standard secondary signal. This allows connection to meters, controllers, protection equipment and energy monitoring systems.

The CTD-9V series provides a dependable solution for industrial electrical installations, combining accurate current transformation, secure bus-bar mounting and durable construction for use in modern power distribution and automation environments.

Typical Applications

  • Industrial energy monitoring systems.
  • Electrical switchboards and distribution panels.
  • Power metering and measurement equipment.
  • Industrial automation power monitoring.
  • Electrical protection and control systems.
  • Commercial and infrastructure energy management 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
Manufacturer Carlo Gavazzi
Series CTD-9V
Model CTD9V4005AXXX
Product type AC solid-core current transformer
Primary current 400 A
Secondary current 5 A
Accuracy class Class 1
Mounting type Vertical bus-bar mounting
Window size 36 mm diameter
Maximum bus-bar width 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)
Standards EN61869-2

Frequently Asked Questions

What is the Carlo Gavazzi CTD9V4005AXXX used for?

The CTD9V4005AXXX is used to measure AC electrical current by converting a 400 A primary current into a standard 5 A secondary output for monitoring and measurement equipment.

What is the primary current rating of this current transformer?

The Carlo Gavazzi CTD9V4005AXXX has a rated primary current of 400 A.

What secondary output does the CTD9V4005AXXX provide?

The current transformer provides a standard 5 A secondary current output.

What mounting arrangement does this current transformer use?

The CTD9V4005AXXX uses a vertical bus-bar mounting design within the Carlo Gavazzi CTD-9V series.

What is the aperture size of this current transformer?

The CTD9V4005AXXX features a 36 mm aperture suitable for compatible bus-bar installations.

Trusted by Industrial Power Engineers Worldwide

Carlo Gavazzi CTD current transformers are widely used by electrical engineers and automation professionals to deliver reliable current measurement, accurate monitoring and efficient energy management in industrial systems.