Bussmann® Limitron® Quick-Acting Fuses Class J – 600 Volt JKS 1-60A Dimensional Data 2.25" (± 0.03) .5" .81" (± 0.03) 1A to 30A 2.38" (± 0.03) .63" 1.06" (± 0.03) 35A to 60A Catalog Symbol: JKS Quick-Acting Current-Limiting Ampere Rating: 1 to 60A Voltage Rating: 600Vac (or less)* Interrupting Rating: 200,000A RMS Sym. Agency Information: UL Listed, Std. 248-8, Class J, Guide JDDZ, File E4273 CSA Certified, C22.2 No. 248.8, Class 1422-02, File 53787 Catalog Numbers JKS-1 JKS-8 JKS-30 JKS-2 JKS-10 JKS-35 JKS-3 JKS-12 JKS-40 JKS-4 JKS-15 JKS-45 JKS-5 JKS-20 JKS-50 JKS-6 JKS-25 JKS-60 General Information: • Single-element, current-limiting fuses provide superior shortcircuit protection. • Protects low interrupting capacity circuit breakers. Limits the short-circuit current to meet the interrupting capacity requirements of existing equipment. • On older systems available short-circuit current may exceed the interrupting capacity of the circuit breakers, fuses can be installed in series with existing equipment. • Well suited for lighting and heating circuits and other noninductive loads. • Provides component short-circuit protection in compliance with NEC 110-10, where protection devices shall clear a fault without “extensive damage” to the circuit components. • High interrupting rating helps meet the requirements of future system expansion and the increases in available utility shortcircuit current. • Fuses can be selectively coordinated with ease. Recommended fuseblocks/fuseholders for Class J 600V fuses See Data Sheets listed below • Finger-safe fuseholders - 1152 • Open fuseblocks - 1114 • Open pyramid fuseblocks - 1108 Carton Quantity and Weight Weight** Amps Carton Qty. Lbs. Kg. 1–30 10 0.95 0.430 35–60 10 1.175 0.532 *15-30A rated 200VDC, 31-60A rated 175VDC and 10 KAIC. **Weight per carton. CE logo denotes compliance with European Union Low Voltage Directive (50-1000Vac, 75-1500Vdc). Refer to Data Sheet: 8002 or contact Bussmann Application Engineering at 314-527-1270 for more information. 10-2-02 SB02295 Form No. JKS 1-60 Page 1 of 2 Data Sheet: 1026 Bussmann® Limitron® Quick-Acting Fuses JKS Class J – 600 Volt 1-60A AMPERE RATING 300 100,000 100 60 10,000 AMPERE RATING 60A B 30A Time-Current Characteristic Curves–Average Melt 400,000 10 200,000 100,000 1,000 10,000 A TIME IN SECONDS 30 1,000 INSTANTANEOUS PEAK LET-THROUGH CURRENT IN AMPS Current Limitation Curves 1 RMS SYMMETRICAL CURRENTS IN AMPERES A–B=ASYMMETRICAL AVAILABLE PEAK (2.3 x SYMM RMS AMPS) 10,000 1,000 100 .01 40 .1 RMS SYMMETRICAL CURRENT IN AMPERES The only controlled copy of this Data Sheet is the electronic read-only version located on the Bussmann Network Drive. All other copies of this document are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. 10-2-02 SB02295 Form No. JKS 1-60 Page 2 of 2 Data Sheet: 1026