Cylindrical fuse insert CH-22 22x58mm gG 50A 500VAC LF550G

Protection of High-Current Circuits

The cylindrical fuse link with dimensions 22x58 mm is a key component in electrical installations requiring protection against overloads and short circuits at a rated current of 50 A. Manufactured from ceramic, this device features a gG operating characteristic, indicating full-range protection – it effectively safeguards both cables and conductors, as well as connected equipment, against prolonged overloads and sudden short circuits. Thanks to this solution, installers can rely on reliable performance in power supply circuits for motors, transformers, or general industrial and domestic installations with higher power demands.

Construction and Operational Parameters

This fuse is designed for operation in alternating current (AC) networks at a rated voltage up to 690 V (according to manufacturer data), although it is also commonly used in 400 V systems in many applications. Its ceramic housing ensures resistance to high temperatures generated during operation while guaranteeing user safety. Note the low power loss at rated current, which amounts to only 5.5 W. This results in reduced heating of the component under normal operating conditions, improving the overall energy efficiency of the circuit and reducing the load on contacts in the fuse holder.

High short-circuit breaking capacity allows safe current interruption even at very high short-circuit values, which is critical for protecting electrical infrastructure. The standard size 22x58 mm ensures full compatibility with most existing CH-22 type fuse holders, facilitating easy installation and subsequent replacement without the need to upgrade the entire switchgear.

Applications and Practical Benefits

Thanks to its universal gG characteristic, this model is suitable for a wide range of applications, providing protection against overheating of cables and conductors in case of overload or short circuit. At the same time, it effectively protects electric motors, transformers, and other loads from damage caused by abnormal current flow. Standard dimensions enable quick adaptation to existing protection systems, significantly simplifying installation. The low power loss value (5.5 W) minimizes the fuse's own energy consumption during continuous operation, resulting in lower operating costs.

This device forms a solid link in the electrical protection system, combining proven technical solutions with the requirements of modern installations. Its simple construction requires no additional accessories for installation – a standard fuse holder of the appropriate type is sufficient. Thus, it is an economical and functional solution for both professionals involved in switchgear modernization and end-users concerned with the safety of their domestic or industrial installations.