Class RK5 Fuse Class RK5 Fuse
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A Class RK5 fuse is a current limiting, time delay fuse that is rated to interrupt a minimum of 200,000 amps. The Class RK5 fuse is less expensive but less current limiting than the Class RK1 fuse. It has a dual element construction. Class RK5 fuses are rated at either 250 or 600 volts AC. Ampere ratings range from 1/10 to 600 amps. Littelfuse self certifies their Class RK5 fuses to a 300,000 amp interrupting rating . Blown fuse indication versions are available. Class RK5 fuses are UL Listed under UL 248-12, Class RK5 and CSA Certified.
Bussmann, Littelfuse and Mersen offer Class RK5 fuses. Bussmann uses the Fusetron® brand name for its Class RK5 fuses. Littelfuse markets its Class RK5 fuses under the POWR-PRO® and Indicator® brand names. Mersen uses the Tri-Onic® and SmartSpot® brand names