Technical Data 1048 Effective December 2015 Supersedes November 2013 BUSSMANN SERIES DFJ Class J high speed fuses Agency information • CE • UL® Listed Standard 248-8, Class J, Guide JDDZ, File E4273 • CSA® Certified, Class 1422-02, File 53787 • RoHS compliant Features: Catalog symbol: • DFJ-_ Description: The Bussmann® series DFJ drive fuse is a high speed, current-limiting fuse that provides maximum protection for AC and DC drives and controllers and meet NEC® branch circuit protection requirements. The drive fuse has the lowest I2t of any branch circuit fuse to protect power semiconductor devices that utilize diodes, GTOs, SCRs and SSRs. • Easily coordinated with existing and new variable speed drives and electric controllers. • Standard Class J dimensions allow using readily available fuse blocks, holders and switches. • Has the lowest let-through energy of any branch circuit overcurrent protective device. Typical applications • Protection of AC and DC drives • Equipment using power semiconductor devices Recommended fuse blocks and holders: Fuse amps 1-Pole 2-Pole 3-Pole Modular ferrule blocks (data sheet No. 10289) 0-30 JM60030-1_ JM60030-2_ JM60030-3_ 35-60 JM60060-1_ JM60060-2_ JM60060-3_ “Pyramid” blocks (data sheet No. 1108) Specifications: 0-30 Ratings 0-30 CH30J1_ CH30J2_ CH30J3_ 35-60 CH60J1_ CH60J2_ CH60J3_ • Volts • 600Vac (or less) • 450Vdc (or less, 15-600A) — — JP60030-3_ CH holders (data sheet No. 2144) Safety J™ holders (data sheet No. 1152) 0-30 JT60030_ — — 35-60 JT60060_ — — • Amps 1-600A JM modular knifeblade fuse blocks (data sheet No. 3192) • IR 70-100 JM60100-1CR JM60100-2CR JM60100-3CR 110-200 JM60200-1CR JM60200-2CR JM60200-3CR 225-400 JM60400-1CR JM60400-2CR JM60400-3CR 450-600 JM60600-1CR JM60600-2CR JM60100-3CR • 200kA RMS Sym. • 100kA DC Power distribution fuse blocks (data sheet No. 10192) 70-100 JM601001MW14 JM601002MW14 JM601003MW14 110-200 JM602001MW16 JM602002MW16 JM602003MW16 JM604001MW16 JM604002MW16 JM604003MW16 JM604001MW26* JM604002MW26* JM604003MW26* 225-400 * Lineside dual box lug terminal. Technical Data 1048 DFJ Class J high speed fuses Effective December 2015 Dimensions - in: Electrical characteristics: Catalog number DFJ-15 DFJ-20 DFJ-25 DFJ-30 DFJ-35 DFJ-40 DFJ-50 DFJ-60 DFJ-70 DFJ-80 DFJ-90 DFJ-100 DFJ-110 DFJ-125 DFJ-150 DFJ-175 DFJ-200 DFJ-225 DFJ-250 DFJ-300 DFJ-350 DFJ-400 DFJ-450 DFJ-500 DFJ-600 Amps 15 20 25 30 35 40 50 60 70 80 90 100 110 125 150 175 200 225 250 300 350 400 450 500 600 I2t (A2 Sec) @ 600Vac/100kA Pre-arc Clearing 4 110 8 365 12 610 20 1000 55 1100 90 1900 140 2800 290 6000 450 3100 650 4600 1010 7200 1460 10,500 1710 9500 3580 20,000 5080 28,000 6310 35,000 9850 54,500 11,420 51,000 17,000 74,500 23,500 103,000 38,800 170,000 62,200 272,000 44,600 270,000 79,500 480,000 138,000 830,000 Watts loss 4.1 4.0 4.9 5.5 6.8 8.6 8.7 8.5 12 13 13 13 17 15 19 23 24 29 30 36 39 40 56 52 57 DFJ-15 DFJ-20 DFJ-25 DFJ-30 DFJ-35 DFJ-40 DFJ-45 DFJ-50 DFJ-60 DFJ-70 DFJ-80 DFJ-90 DFJ-100 DFJ-110 DFJ-125 DFJ-150 DFJ-175 DFJ-200 Carton quantity: Amp rating 1–60 70–200 225–600 2 Carton qty. 10 5 1 Eaton.com/bussmannseries DFJ-225 DFJ-250 DFJ-300 DFJ-350 DFJ-400 DFJ-450 DFJ-500 DFJ-600 0.63˝ 1.06˝ 0.50˝ 0.81˝ 4.63" (± 0.03) 3.63" 2.63" 1.13" .75" 1" .28" .43" 70A to 100A .13" 5.75" (± 0.03) 4.38" 3.0" 110A to 200A .43" 7.13" (± 0.03) 5.25" 3.38" 225A to 400A Catalog numbers (amps): DFJ-1 DFJ-2 DFJ-3 DFJ-4 DFJ-5 DFJ-6 DFJ-8 DFJ-10 DFJ-12 2.38˝ 2.25˝ .58" 1.13" .28" 1.63" .19" 1.38" .41" 1.63" 2.11" 1.88" .25" 8.0" (± 0.03) 6.0" 3.75" .53" 450A to 600A .74" 2" 2.13" 2.5" .38" DFJ Class J high speed fuses Technical Data 1048 Effective December 2015 Time-current curves — average melt Time in seconds Current in amps Current in amps Eaton.com/bussmannseries 3 Technical Data 1048 DFJ Class J high speed fuses Effective December 2015 Peak current in amps Current-limitation curves Available RMS current in amps The only controlled copy of this data sheet is the electronic read-only version located on the Eaton 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. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton 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. Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com Bussmann Division 114 Old State Road Ellisville, MO 63021 United States Eaton.com/bussmannseries © 2015 Eaton All Rights Reserved Printed in USA Publication No. 1048 – BU-SB131065 December 2015 Eaton, Bussmann and Low-Peak are valuable trademarks of Eaton in the US and other countries. 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