General
Enclosure diameter	52 mm

The C107 current clamp from Chauvin Arnoux is a precise measuring instrument for detecting alternating currents in the range of 0.1 A to 1200 A. It belongs to the "C" series and is specifically designed for use in industrial and commercial environments where high measurement accuracy and reliability are required. The device enables measurement on conductors with a maximum encirclement diameter of 52 mm, making it suitable for use in office and industrial facilities, particularly for installations up to CAT III 600 V. The round shape of the clamp jaws and the uniform coil winding ensure minimal phase shift and high accuracy, which is crucial for precise current measurements.

Applications

The C107 is used in electrical engineering to measure alternating currents in existing installations without interrupting the power supply. It is particularly suitable for inspections in buildings, maintenance of electrical systems, monitoring energy consumption, and diagnosing power distribution systems. The safety category CAT III 600 V makes it suitable for measurements in medium-voltage environments, as commonly found in industrial and commercial installations.

Functions and Features in Detail

The device features a pendulum hinge system that optimally aligns the magnetic components, as well as a patented support system that enables smooth, assisted opening of the clamp jaws. This improves handling and reduces physical strain during use. The output signal is transmitted via a permanently attached cable with 4-mm insulated connectors, ensuring a secure and reliable connection to measuring instruments or data acquisition systems. The output signals are alternating voltage, with a transformation ratio of 1 A / 1 mV AC.

Technology Explained Simply

The current clamp operates on the principle of a current transformer. When a conductor carrying alternating current is passed through the clamp, the magnetic flux induces a proportional output signal in the coil. The accuracy of ≤ 0.5 % and the constant transformation ratio ensure that the measured signal closely matches the actual current value. The round shape of the jaws and the uniform winding minimize errors caused by uneven field distribution. The safety standard IEC 61010 with CAT III 600 V guarantees that the device can be safely used for measurements in electrical installations with the corresponding voltage category.

Compatibility and Accessories

The C107 is equipped with a fixed cable and 4-mm connectors, compatible with standard measuring instruments and data loggers. Suitable accessories available in the range include a set of two adapters (BNC socket / 4-mm plug), enabling connection to devices with BNC connectors. These adapters extend the application possibilities of the current clamp, especially in systems using BNC connectors.

Mounting and Installation

Installation is performed by simply clamping the conductor to be measured with the clamp. The opening of the jaws is facilitated by the patented support system, ensuring safe and convenient handling even with thicker conductors. No additional mounting or installation is required — the device is attached directly to the conductor and can be used immediately.

Operational Advantages

The C107 offers high measurement accuracy, minimal phase shift, and ergonomic operation. Its robust construction and CAT III 600 V safety approval make it a reliable tool for professional users. The combination of precise measurement and easy handling reduces error susceptibility and shortens measurement time. The use of 4-mm connectors ensures a secure and low-resistance connection to the measuring device.

Scope of Delivery

The scope of delivery includes the current clamp C107 and the operating instructions.