RS PRO 20A Super Fast Acting Ceramic Cartridge Fuse, 6.3 x 32 mm, 500V AC, HBC, FF Speed 247-3955

RS PRO 247-3955 is a high-quality ceramic cartridge fuse with a 6.3 x 32 mm body size, designed to deliver reliable circuit protection in industrial, commercial, and electronic applications. This fuse is rated for 20A current and operates at 500V AC, featuring a super fast acting (FF) fuse characteristic that specializes in protecting sensitive semiconductor devices including thyristors, diodes, and transistors. The ceramic body enhances durability and heat resistance, enabling the fuse to safely operate under higher temperatures and ensuring long-lasting protection.

The fuse is classified as high breaking capacity (HBC), meaning it can safely interrupt high fault currents without damage or explosion, which is essential for protecting critical electronic circuits from costly faults. Measuring 6.3 mm in diameter and 32 mm in length, this cylindrical fuse fits standard miniature cartridge fuse holders, making it suitable for a wide range of electrical and electronic systems.

RS PRO Cartridge Fuses reliably guard equipment against overcurrent conditions by blowing under excessive current, isolating the circuit to prevent damage. The super fast acting speed rating ensures rapid response to short circuits and fault currents, making it ideal for the protection of semiconductor devices sensitive to current surges.

Durable ceramic body construction for robust protection. 20A current rating ensures compatibility with moderate power devices. 6.3 x 32 mm size conforms to miniature cartridge standards. High breaking capacity for increased safety and reliability.

Super fast acting (FF) fuse characteristic for sensitive device protection. Complies with RoHS and UL standards for safety and environmental requirements. Used widely in industrial electronics, automation systems, and electrical appliances.

Manufactured in Germany assuring high quality and performance.

This fuse is a cost-effective solution for protecting electronic components and electrical equipment from damage due to short circuits and overcurrent conditions. Its standardized dimensions and trusted brand make it a reliable component for engineering and maintenance professionals.

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