General
Enclosure diameter	52 mm

The C103 current clamp from Chauvin Arnoux is a precise measuring instrument for capturing 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 office buildings, where measurements on electrical conductors up to 600 V CAT III are required. The clamp enables non-invasive current measurement without interrupting the conductor, making it ideal for commissioning, maintenance, and diagnosis of electrical installations.

Applications

The C103 is intended for use in industrial and commercial environments where high measurement accuracy and safety are required. It is particularly suitable for monitoring power consumption in machines, drives, lighting systems, and other electrical installations. The maximum jaw opening of 52 mm allows measurement on most cables and conductors encountered in these applications. The safety approval according to IEC 61010, CAT III 600 V, ensures that the device can be safely used even in electrically demanding environments.

Functions and Equipment in Detail

The clamp features a round shape of the jaw jaws and a uniform coil winding, ensuring high measurement accuracy and minimal phase shift. The turns ratio is 1000:1, meaning that a current of 1000 A at the input generates an output signal of 1 A. The typical accuracy is ≤ 0.5 %, which is sufficient for precise measurements in technical applications. A pivot-hinge system and a patented support system enable stepless, assisted opening of the jaw jaws, making handling easier and operation safer.

Technology Explained Simply

The C103 operates as a transformer clamp, where the current to be measured flows through the jaw jaws and generates a magnetic field. This field induces a proportional output signal, which is transmitted via a cable with 4-mm-insulated connectors. The connectors are equipped with integrated overvoltage protection to protect the connected measuring device from damage due to voltage surges. The output signal is an alternating current that can be directly connected to multimeters, wattmeters, oscilloscopes, or other measuring instruments. The device's bandwidth ranges from 30 Hz to 10 kHz, enabling accurate capture of alternating currents over a wide frequency range.

Compatibility and Accessories

The C103 is compatible with a wide range of measuring instruments that have inputs for 4-mm connectors. Suitable accessories include a set of two adapters BNC socket/4mm plug, enabling connection to devices with BNC connectors. The clamp itself is designed for use with devices having a load impedance of up to 15 Ω. The operating voltage is 600 V RMS, and the device is designed for an operating temperature range of -10 °C to +50 °C.

Installation and Mounting

Installation is performed by simply clamping the conductor to be measured with the clamp. The opening of the jaw jaws is facilitated by the patented support system, allowing secure and precise positioning even with thicker cables. The clamp is designed for use in electrical installations under voltage and requires no additional tools or mounting aids. The user manual, included in the delivery, provides instructions for correct handling and safety regulations.

Operational Advantages

The C103 offers high measurement accuracy combined with safety and user-friendliness. The integrated overvoltage protection function protects the connected device, and the robust construction with IP40 protection rating ensures reliable operation in industrial environments. The clamp is easy to operate, even with frequent use, thanks to its ergonomic design and simple jaw opening. The combination of precision, safety, and user-friendliness makes the C103 a reliable tool for professionals in the electrical and IT trades.

Protection Rating and Environmental Conditions

The clamp has a protection rating of IP40, meaning it is protected against solid foreign objects up to 1 mm and against splashing water from any direction. The operating temperature ranges from -10 °C to +50 °C, and the storage temperature can reach up to +70 °C. The relative humidity during operation is up to 85 % RH, decreasing linearly from 35 °C. The device is designed for an operating altitude up to 2000 m above sea level.

Weight and Dimensions

The device has dimensions of 216 mm (length) × 111 mm (width) × 45 mm (height) and weighs 550 g. The color scheme consists of a dark gray housing with red jaw jaws, ensuring good visibility and identification.

Scope of Delivery

The scope of delivery includes the current clamp C103 and the user manual.