General
Enclosure diameter	250 mm
Loop length	800 mm
Measurement range with PEL 51 / 52	200 mA…3 kA AC
Measurement range with PEL 10X / PEL 11X	200 mA…10 kA AC
Measurement range with C.A 8220 / 8230	10 / 30 A…6500 A AC

The flexible current transformer A193-800 from Chauvin Arnoux is a measuring accessory for Qualistar and PEL power measuring instruments, enabling precise alternating current measurements. It is specifically designed for use with various measuring instruments, with the measurement range varying depending on the connected device. The device features a flexible design that allows easy adaptation to large or hard-to-access conductors. The encirclement diameter is 250 mm, and the loop length is 800 mm, making it suitable for a wide range of application scenarios.

Applications
The current transformer is used in industrial electrical engineering, energy distribution, and power measurement. It is particularly useful when conductors or cables are not easily accessible or when non-invasive measurement is required. Its use with devices such as PEL 51/52, PEL 10X/11X, C.A 8331/8333/8336/8436, C.A 8332B/8334B/8335/8435, C.A 8345, and C.A 8220/8230 enables a broad application range from small to very high current strengths.

Functions and Features in Detail
The current transformer is designed for measuring alternating current (AC). The measurement ranges vary depending on the connected device: with PEL 51/52, the range is 200 mA to 3 kA AC; with PEL 10X/11X, it is 200 mA to 10 kA AC. With devices C.A 8331/8333/8336/8436, the range is 100 mA to 10 kA AC; with C.A 8332B/8334B/8335/8435, it is 30 A to 6500 A AC; with C.A 8345, it is 100 mA to 10 kA AC; and with C.A 8220/8230, it is 10/30 A to 6500 A AC. This variety of measurement ranges makes the device flexible for use in different technical environments.

Technology Explained Simply
The flexible current transformer operates on the principle of a current transformer, where a magnetic field is generated by the conductor to be measured. This field induces a current in the secondary winding of the transformer, which is proportional to the main current. The flexible loop allows the transformer to be placed around the conductor without interrupting it. The safety categories CAT III 1000 V and CAT IV 600 V according to IEC 61010 ensure safe operation in electrical installations with corresponding voltage classes. This standard is relevant for measuring instruments in industrial and energy technology installations.

Compatibility and Accessories
The current transformer is compatible with a range of measuring instruments from the Qualistar and PEL brands, as listed above. It can be combined with devices designed for measuring electrical power, current, and voltage. Suitable accessories available in the range include a set of coloured identification parts, which can help in better identification of measurement leads.

Installation and Mounting
Installation is carried out by looping the flexible coil around the conductor to be measured. The loop length of 800 mm and encirclement diameter of 250 mm allow adaptation to various conductor diameters. Connection to the measuring instrument is made via the designated terminals. The user manual, included in the delivery, provides detailed instructions for correct handling and installation.

Operational Advantages
The flexible current transformer offers the advantage of non-invasive measurement, meaning the electrical installation does not need to be interrupted. The high safety category allows use in demanding environments. The variety of compatible devices and wide measurement ranges increase the flexibility and usability of the product. Delivery includes the current transformer and a user manual.