General
Enclosure dimensions	64 x 150 mm
Rated current	2400 A AC

The Chauvin Arnoux D32N clamp is a clamp current transformer for precise measurement of alternating currents in industrial and technical applications. The device is specifically designed for use with thick cables and busbars, where the rectangular shape of the clamp jaws enables secure encirclement even of irregular cross-sections. The "D" model series is characterised by high measurement accuracy, achieved through the quality of the magnetic circuits and distributed windings.

Applications
The D32N clamp is suitable for measuring medium to high alternating currents in the range of 1 A to 3600 A, with the nominal current rating stated by the manufacturer as 2400 A AC. The rectangular encirclement geometry with dimensions 64 x 150 mm allows use with wide conductors and busbars, which are required for accurate current measurement. Typical applications include electrical engineering, plant maintenance, or monitoring energy consumption in industrial environments.

Functions and Equipment in Detail
The device features three adjustable measurement ranges: 1 A to 1200 A, 1 A to 2400 A, and 1 A to 3600 A. The corresponding turns ratios are 1000/1, 2000/1, and 3000/1. Typical accuracy is ≤ 1 % for the smallest range and 0.5 % for the two higher ranges. These values ensure reliable measurement even at low current values. The output signal is an alternating current delivered via insulated sockets with a diameter of 4 mm. These output sockets are equipped with overvoltage protection to protect the connected measuring device from transient voltage spikes.

Technology Explained Simply
The clamp current transformer operates on the principle of a transformer, where the current to be measured flows through the clamp and generates a magnetic field. This field induces a proportional output signal in the secondary winding of the transformer. The distributed winding and high-quality magnetic circuits minimise distortions and phase shifts, enabling suitability for power measurements. The low phase shift ensures precise active power measurement, which is important for energy monitoring and optimisation.

Compatibility and Accessories
The D32N clamp is designed for use with measuring instruments that have an alternating current input with 4-mm plug connection. Suitable accessories available in the range include a set of two adapters of type BNC socket/4mm plug. These adapters enable connection to devices with BNC connectors, increasing flexibility in device selection.

Mounting and Installation
Installation is carried out by simply opening the clamp jaws, encircling the conductor to be measured, and closing the clamp. No additional mounting or fastening is required. The clamp is attached directly to the conductor, with the rectangular shape ensuring secure encirclement even for wide or irregular cross-sections. The connection sockets are insulated and allow a safe connection to the measuring device.

Advantages in Operation
The D32N clamp offers high measurement accuracy combined with great flexibility due to the three measurement ranges. The rectangular shape and robust construction enable use in demanding environments. The integrated overvoltage protection safeguards the connected measuring device. The low phase shift makes the device suitable for power measurements, making it valuable for industrial energy monitoring and maintenance work. The design with insulated 4-mm sockets ensures a safe and standardised connection to measuring instruments.