General
Rated voltage	1000 V

These replacement fuses from Chauvin Arnoux are specifically designed for use in the measuring instruments C.A 5287 and C.A 5289. They serve as protective components in the electrical system of the devices and prevent damage caused by overcurrents. The fuses are manufactured in the 10 x 38 mm format, enabling standardized installation in the designated fuse holders. With a rated current of 440 mA and a fast blow characteristic, they respond quickly to excessive current loads to maintain the integrity of the measuring instruments. The rated voltage is 1000 V, making the fuses suitable for applications in high-voltage environments. The set includes 5 pieces, which is sufficient for professional maintenance needs or as a replacement stock.

Applications
These fuses are exclusively intended for the specified measuring instruments C.A 5287 and C.A 5289. They integrate into the internal power supply and protection circuits of these devices to ensure a safe disconnection process in case of current surges or malfunctions. Their use is limited to the specific device environment and is not intended for general electrical installations.

Functions and Equipment in Detail
The fuses feature a fast blow characteristic, meaning they react quickly to short-term current overloads without unnecessarily tripping during normal load peaks. This ensures stable operation of the measuring instruments under normal conditions. The rated current of 440 mA is tailored to the typical operating conditions of the devices, providing sufficient protection without impairing functionality. The dimensions of 10 x 38 mm correspond to a common fuse format used in many measuring instruments.

Technology Explained Simply
The fuses are designed as high-performance fuses, where the term HPC (High Performance Circuit) indicates a construction optimized for high reliability and fast response. The rated voltage of 1000 V indicates that they are designed for applications involving high electrical voltages, which is typical for professional measuring instruments. The fast blow characteristic ensures that the fuse disconnects quickly in the event of a sudden current increase, protecting the sensitive electronic components inside the device.

Compatibility and Accessories
The fuses are exclusively compatible with the measuring instruments C.A 5287 and C.A 5289. Use in other devices is not intended and may lead to malfunctions.

Installation and Mounting
Installation is performed by inserting the fuse into the designated holder inside the measuring instrument. The dimensions of 10 x 38 mm allow for easy and quick mounting. No additional tools or mounting aids are required, as the fuses fit mechanically into the holder. Replacement is carried out by removing the defective fuse and inserting the new one.

Advantages in Operation
The fuses provide reliable protection for the measuring instruments C.A 5287 and C.A 5289. The fast blow characteristic ensures a rapid response to overcurrents, thereby extending the service life of the devices. The set of 5 pieces enables an efficient replacement stock, minimizing downtime during maintenance or failure. The standard dimensions facilitate replacement and reduce the risk of errors during installation.