Cylindrical fuse insert CH-22 22x58mm gG 80A 500VAC LF580G

Application and Protective Characteristics

The cylindrical fuse element with dimensions 22x58 mm is a key component in industrial installations requiring reliable protection against overloads and short circuits. This model, designated with the gG characteristic, is designed for general-purpose protection, meaning it effectively safeguards both cables and conductors as well as electrical equipment against prolonged overloads and short-circuit currents. Thanks to the use of a ceramic body, this element provides high thermal and mechanical resistance, which is particularly important in environments with varying operating conditions.

The rated current of 80 A allows for safe handling of loads in circuits with medium and high current intensities. It is worth noting the rated voltage of 500 V AC, which makes this product a universal solution for most low-voltage installations in industry and public utility buildings. In the event of a short circuit, the fuse element can interrupt currents up to 120 kA, ensuring installation safety even in extreme situations and preventing damage to other components of the electrical system.

Operating Conditions and Installation

When selecting fuses, it is important to consider not only their short-circuit breaking capacity but also parameters affecting the energy efficiency of the entire system. This specific model is characterized by a power loss at rated current of 7.8 W. Although this value may seem small, in large systems with multiple circuits, the cumulative losses can be significant for the facility's energy balance. Low power loss also translates into reduced heating of the protective element itself and its surroundings, increasing operational comfort and safety.

Installation of the fuse element is simple and intuitive thanks to the standard dimensions of 22x58 mm, which are widely used in the industry. This component fits most standard fuse holders available on the market. However, it is important to remember compliance with standards – the product meets the requirements of IEC 60898-1 and IEC 60947-2 standards, confirming its suitability for professional applications. Additionally, the absence of halogens and compliance with RoHS and REACH directives make this an environmentally friendly solution that is safe to use throughout the product's lifecycle.

Practical Application

Thanks to the combination of a rated current of 80 A with a high breaking capacity of 120 kA, this fuse element is ideally suited as a protective component for electric motors (due to its delayed tripping characteristic), transformers, or other inductive devices. This construction allows it to withstand short-term current surges occurring during motor startup without the risk of immediate fuse blowout. Operation at network frequencies of 50–60 Hz and working voltage up to 500 V AC makes it a universal component in a wide range of industrial and commercial installations. The ceramic housing not only protects the interior from external factors but also ensures parameter stability even at higher ambient temperatures.