BUSSMANN Technical Data 10413 Effective July, 2015 SERIES 250V KWN-R and 600V KWS-R Class RK1 fuses Agency information CE UL Listed, Std. 248-12, Class RK1, Guide JDDZ, File E4273 CSA Certified, C22.2 No. 248.12, Class 1422-02, File 53787 250V KWN-R catalog numbers (amp) KWN-R-1 KWN-R-15 KWN-R-50 KWN-R-3 KWN-R-20 KWN-R-60 KWN-R-5 KWN-R-25 KWN-R-6 KWN-R-30 KWN-R-10 KWN-R-40 600V KWS-R catalog numbers (amp) KWS-R-1 KWS-R-15 KWS-R-40 Catalog symbols: KWS-R-3 KWS-R-20 KWS-R-50 KWS-R-5 KWS-R-25 KWS-R-60 KWN-R-(amp) 250V KWS-R-6 KWS-R-30 KWS-R-(amp) 600V KWS-R-10 KWS-R-35 Description: KWN-R and KWS-R Carton quantity 250V KWN-R and 600V KWS-R fast-acting Amp rating Carton qty. Limitron fuses are UL Listed as Class RK1 160 10 fuses. They are dual voltage rated and can be applied at 250Vac/dc and 600Vac/dc respectively with interrupting ratings of 200kA AC and 20kA DC. Ratings Volts 250Vac/dc KWN-R 600Vac/dc KWS-R Amps 1-60A Interrupting rating 200kA AC 20kA DC250V KWN-R and 600V KWS-R Class RK1 fuses Technical Data 10413 Effective July 2015 Features: Dimensions - in: High DC voltage ratings for critical industrial or commercial 250V KWN-R applications that have specific current limitation requirements. 2 10X better current limitation helps prevent equipment damage caused by short-circuit events ( 0.31) 200kA AC Interrupting ratings comply with NEC Section 110.9 for todays large capacity systems 20kA DC interrupting ratings help meet the needs of protecting 0.56 ( 0.008) higher ampacity DC circuits 1/10 to 30A Incorporates Class R rejection feature. Can be inserted in non- rejection type fuse holders to physically and electrically replace fast-acting Class H, K1, K5, RK5, and other fast-acting fuses. Recommended fuse blocks: Fuse amps 1-pole 2-pole 3-pole 3 250V KWN-R ( 0.31) 0-30 RM25030-1 RM25030-2 RM25030-3 35-60 RM25060-1 RM25060-2 RM25060-3 0.81 ( 0.008) 600V KWS-R 0-30 RM60030-1 RM60030-2 RM60030-3 35 to 60A 35-60 RM60060-1 RM60060-2 RM60060-3 See data sheet No. 10289 for details. 600V KWS-R Fuse reducers for Class R fuses: 5 Catalog numbers (pairs) Equipment Desired fuse ( 0.31) fuse clips (case) size 250V 600V 60A 30A NO.263-R NO.663-R 0.81 ( 0.008) 30A NO.213-R NO.216-R 100A 60A NO.216-R NO.616-R 1/10 to 30A 200A 60A NO.226-R NO.626-R For additional information on Class R fuse reducers, see data sheet No. 1118. 5.5 ( 0.31) 1.06 ( 0.008) 35 to 60A 2 Eaton.com/bussmannseries