Bussmann® Limitron® Quick Acting Fuses JKS Class J 600 Volt 70-600A Dimensional Data 4.63" 3.63" 2.63" .75" 1.13" 7.13" 5.25" 3.38" .13" 225A to 400A 1" .28" .38" 65A to 100A 5.75" 4.38" 3.0" 110A to 200A .38" CATALOG SYMBOL: JKS QUICK-ACTING 70 TO 600 AMPERES 600 VOLTS AC (OR LESS) * CURRENT LIMITING INTERRUPTING RATING–200,000A RMS SYM. U.L. LISTED CLASS J (GUIDE # JDDZ, FILE # E4273) CSA HRCI-J (CLASS 1422-02, FILE # 53787) *Contact Bussmann for DC ratings. Catalog Numbers JKS-70 JKS-150 JKS-350 JKS-80 JKS-175 JKS-400 JKS-90 JKS-200 JKS-450 JKS-100 JKS-225 JKS-500 JKS-110 JKS-250 JKS-600 — .41" 1.63" .53" .19" .69" .25" .53" 450A to 600A 1.5" 1.38" 1.88" 8.0" 6.0" 3.75" 1.13" .28" *2" 2" 2.5" .38" 2.13" • Single element, current limiting fuses provide superior short-circuit 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 non-inductive 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 easily be selectively coordinated. Carton Quantity and Weight–JKS LIMITRON (600 Volts AC)* Standard J Fuseblocks (600V) Catalog Data Catalog Number Carton Qty Weight** Lbs. Kg. Amps Poles Box Lug w/ Retaining Clip Max. Wire Size 70–100 5 0.28 0.127 70–100 3 J60100-3CR 1/0 Cu-Al 110–200 1 0.86 0.390 101–200 1 J60200-1CR 250MCM Cu-Al 0.807 201–400 1 J60400-1CR 500MCM Cu-Al 1.392 401–600 1 J60600-1CR (2) 500MCM Cu-Al 225–400 450–600 1 1 1.78 3.07 **Weight per carton. 12-21-98 SB98107 Rev. A Form No. JKS 70-600 Page 1 of 2 BIF Doc #1027 Bussmann® Limitron® Quick Acting Fuses JKS Class J 600 Volt 70-600A AMPERE RATING 100,000 600A 300 400A 400,000 200A 100A Time-Current Characteristic Curves–Average Melt B AMPERE RATING 100 600 400 200 100 10,000 200,000 100,000 1,000 10,000 A TIME IN SECONDS 10 1,000 INSTANTANEOUS PEAK LET-THRU 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 BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this BIF 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. 12-21-98 SB98107 Rev. A Form No. JKS 70-600 Page 2 of 2 BIF Doc #1027