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The Bussmann Fuse Class RK5 12A FRN-R Series is an essential component for enhanced overcurrent protection in electrical circuits. Designed with UL Class RK5 characteristics, these fuses offer moderate current limitation for general use applications where more current-limiting RK1 fuses are not needed. Their interrupting rating of 200kA ensures that they quickly disconnect circuits exposed to sustained loads and short circuits without causing any damage. The rejection feature prevents an accidental downgrade from a current-limiting system, making them ideal for use with Class R fuse holders. Additionally, their modified terminals ensure compatibility with newer equipment. Applications include HVAC systems, refrigeration equipment, industrial machinery, and many other uses where protection against overcurrent is essential. The Bussmann Fuse Class RK5 12A FRN-R Series provides peace of mind that your electrical circuits are safeguarded from potential hazards.