The Siemens 3NA3020 is a high-quality LV HRC fuse element designed for reliable protection in low voltage applications. This fuse link, part of the SENTRON family, is engineered to safeguard electrical circuits by interrupting excessive currents, thereby preventing potential damage to equipment and ensuring operational safety.
Rated for a current of 50A, the 3NA3020 fuse element is suitable for both AC (up to 500V) and DC (up to 440V) applications. It features a gG operating class, making it ideal for general protection purposes. The fuse is designed with non-insulated grip lugs and a front indicator for easy identification and installation.
Constructed to meet the NH0 size standard according to DIN EN 60269-1, this fuse element boasts a robust design with non-corroding, silver-plated switching contacts. It offers a high switching capacity of 120kA for AC and 25kA for DC, ensuring reliable performance under fault conditions.
The Siemens 3NA3020 is built to operate within a wide ambient temperature range of -5°C to 40°C and can withstand environmental conditions of -20°C to +50°C at 95% relative humidity. It is rated IP20 for protection against solid objects and is designed for vertical mounting, although it can be installed in any position.
With a power loss of 4.5W, this fuse element ensures efficient operation while maintaining safety standards. The Siemens 3NA3020 is a dependable choice for protecting electrical systems in various industrial and commercial settings.