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Bussmann Fuse Class RK5 12A FRS-R Series is a time delay and nonindicating fuse ideal for applications where additional current limiting protection is desired. These UL listed fuses can tolerate temporary inrush currents, prevent nuisance blowing from motor and equipment startups, and open to disconnect an electrical circuit when exposed to sustained loads or short circuits. The 200kA IR rating provides moderate current limitation for general use applications that do not require the higher level of current-limiting offered by RK1 fuses. Their modified terminals ensure compatibility with rejection clips in Class R fuse holders, ensuring an upgrade from older installations and providing improved overcurrent protection compared to H or K fuses. With a wide range of applications including electronic equipment, lighting, and machinery, the Bussmann Fuse Class RK5 12A FRS-R Series provides exceptional performance and reliability for your electrical system needs.