BUSSMANN Effective May 2016 Technical Data 1043 Supersedes October 2002 SERIES Limitron fast-acting, RK1 250 volt fuses Catalog symbol - KTN-R-(amps) Dimensions - in: Description: 2 Advanced protection Class RK1 current-limiting, 0.56 fast-acting fuses. 1/10 A to 30 A Specifications: 3 0.81 Ratings 35 A to 60 A Volts: 250 Vac 5.88 250 Vdc (70-350 A) 1.06 Amps - 1-600 A 70 A to 100 A Interrupting rating: 7.13 200 kA Vac RMS Sym. 100 kA Vdc 1.56 110 A to 200 A Agency Information UL Listed, Std. 248-12, Guide JDDZ, 8.63 File E54273 2.06 CSA Certified, Class 1422-02, File 53787 225 A to 400 A CE 10.38 Features: Provides 10X better current limitation to help 2.59 prevent equipment damage caused by 450 A to 600 A short-circuit events 200 kA interrupting rating complies with Catalog numbers NEC Section 110.9 for todays large capacity systems KTN-R-1 KTN-R-30 KTN-R-125 KTN-R-2 KTN-R-35 KTN-R-150 Fast-acting fuse helps prevent equipment damage caused by short-circuit events KTN-R-3 KTN-R-40 KTN-R-175 KTN-R-4 KTN-R-45 KTN-R-200 Incorporates Class R rejection feature. Can be inserted in non-rejection type fuse holders KTN-R-5 KTN-R-50 KTN-R-225 to physically and electrically replace Class H, KTN-R-6 KTN-R-60 KTN-R-250 K1, K5, and other fast-acting fuses KTN-R-8 KTN-R-70 KTN-R-300 Ideal for critical industrial or commercial KTN-R-10 KTN-R-75 KTN-R-350 applications that have specific current KTN-R-12 KTN-R-80 KTN-R-400 limitation requirements KTN-R-15 KTN-R-90 KTN-R-450 KTN-R-20 KTN-R-100 KTN-R-500 KTN-R-25 KTN-R-110 KTN-R-600 Technical Data 1043 Limitron fast-acting fuses 250 volt Effective May 2016 Time-current curves average melt Carton quantity and weight (250 vac)* Amp Carton rating Amps qty. 300 130 10 4060 10 70100 5 100 110200 1 225400 1 450600 1 *Contact Eatons Bussmann Division for DC ratings. Recommended fuse blocks Fuse amps 1-pole 2-pole 3-pole HM25030-1 HM25030-2 HM25030-3 10 0-30 RM25030-1 RM25030-2 RM25030-3 HM25060-1 HM25060-2 HM25060-3 35-60 RM25060-1 RM25060-2 RM25060-3 70-100 RM25100-1CR RM25100-2CR RM25100-3CR 110-200 RM25200-1CR RM25200-1CR RM25200-1CR 225-400 RM25400-1CR RM25400-1CR RM25400-1CR 450-600 RM25600-1CR RM25600-1CR RM25600-1CR 1 For additional information on 250 volt blocks, see data sheet No. 10289 (RM250) and (HM250) and product brochure No. 3192 (RM style). Fuse reducers for Class R fuses - 250 V Equipment Desired fuse Catalog symbol fuse clips (case) size (pairs) 60 A 30 A NO.263-R 0.1 30 A NO.213-R 100 A 60 A NO.216-R 60 A NO.226-R 200 A 100 A NO.2621-R 100 A NO.2641-R 400 A 200 A NO.242-R 100 A NO.2661-R 0.01 600 A 200 A NO.2662-R 400 A NO.2664-R Single reducer only (pair not required). RMS symmetrical current in amps For additional information on Class R fuse reducers, see data sheet No. 1118. 2 Eaton.com/bussmannseries Time in seconds 40 30A 60A 100 100A 200A 400A 600A 1000 10,000