powr-pro ? fuses 0 powr-pro ? fuses w w w . l i t t e l f u s e . c o m ? 2005 littelfuse ? powr-gard ? products catalog ccmr series powr-pro ? class cc and cd fuses 600 vac ? dual-element, time-delay ? 2/10 C 60 amperes for space saving protection of motor circuits up to 40 hp*, we recommend littelfuse powr-pro ccmr series fuses. these fuses are the only true dual-element, time-delay fuses that come in a small package specifically e n g i neered for motor branch circuit pr o te c tion. ccmr series fuses pr o vide type 2 no damage pr o te c tion to both nema-rated and the more sensitive iec (international electrotechnical co m mi s sion) type motor circuit co m p o nents. rating for rating, ccmr fuses are the most current-limiting fuses available. they also provide superior short-circuit protection since their time-delay characteristics permit the use of smaller fuse ratings in motor circuits than would be possible if using fast-acting fuses. ccmr series fuses provide superior pr o te c tion in a fraction of the space required by other fuse classes. for example, when 600v three pole, 30 ampere class r fuse blocks are replaced by littelfuse class cc fuse blocks, mounting space requirements may be r e duced 70% or more. this is especially i m po r tant when a panel contains control devices for many motors. in addition to the ul listed smaller sizes, littelfuse ccmr series fuses are now available in larger sizes from 35 to 60 amperes! no other fuse is available with this current carrying capacity in a package this small. in fact, the 60 ampere ccmr fuse is the smallest 60a fuse available rated at 600 volts. applications ccmr series fuses are specifically designed to withstand sustained starting currents of small motors provide short-circuit protection for motor branch circuits use with iec- and nema-rated motor controllers and contactors general purpose circuits up to 60 amps features/benefits ? space savings no other fuse class approved for branch circuit protection has a 600 volt rating and 300,000 a.i.r. in such a small package. ? extremely current-limiting reduces da m age caused by heating and magnetic effects of short-circuit currents. stops damaging short- circuit currents faster than any m e cha ni cal protective device. ? excellent time-delay eliminates needless dow n time caused by power surges or equi p ment demands. permits selection of fuse sizes closer to actual load conditions, which provides better protection. ? 300ka interrupting rating littelfuse self-certified to 300,000 a m peres as standard. meets future trend towards higher available short-circuit currents. * ? consult ? the ? motor ? protection ? tables ? in ? the ? fuseology ? section ? for ? specific ? motor ? sizing ? information note: ? for ? availability ? of ? rohs ? compliant ? product, ? call ? 1-800-tec-fuse. specifications voltage ratings: ac: 600 volts dc: 250 volts (ccmr 2 ? 10 2a) (ccmr 4 1 ? 2 10a) (ccmr 35 60a) 300 volts (ccmr 2 1 ? 4 4a) 500 volts (ccmr 12 30a) interrupting ratings: ac: 200,000 amperes rms symmetrical 300,000 amperes rms symmetrical (littelfuse self-certified) dc: 20,000 amperes ampere range: 2 ? 10 60 amperes approvals: ac: standard 248-4, class cc ul listed 2 ? 10 C 30 amps (file no: e81895) standard 248, class cd ul listed 35 C 60 amps (file no: e81895) csa certified 2 ? 10 C 60 amps (file no: lr29862) dc: littelfuse self-certified ampere ratings 2 ? 10 1 2 3 1 ? 2 6 1 ? 4 12 35 1 ? 4 1 1 ? 4 2 1 ? 4 4 7 15 40 3 ? 10 1 4 ? 10 2 1 ? 2 4 1 ? 2 7 1 ? 2 17 1 ? 2 45 1 ? 2 1 1 ? 2 2 8 ? 10 5 8 20 50 6 ? 10 1 6 ? 10 3 5 6 ? 10 9 25 60 8 ? 10 1 8 ? 10 3 2 ? 10 6 10 30 example part number (series & amperage): ccmr 40 recommended fuse blocks lpsc (ccmr 2 ? 10 30a) l60030c series (ccmr 2 ? 10 30a) l60060c series (ccmr 35 60a) refer to blocks & holders section of this catalog for additional i n fo r m a tion.
powr-pro ? fuses powr-pro ? fuses w w w . l i t t e l f u s e . c o m ? 2005 littelfuse ? powr-gard ? products catalog ccmr series powr-pro ? class cc and cd fuses 600 vac ? dual-element, time-delay ? 2/10 C 60 amperes 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000 100 200 300 400 600 800 1000 100 200 300 400 600 800 1000 2000 3000 4000 6000 8000 10000 20000 30000 40000 60000 80000 100000 200000 300000 400000 600000 800000 1000000 60a 30a 20a 15a 12a 10a 6 1/4a 4a 2a current-limiting effects of ccmr (600v) fuses 1.880" (47.8 mm) .850" (21.6 mm ) 1.50" (38.1 mm ) .50" (12.7 mm ) .41" (10.3 mm ) .25" (6.4 mm ) .125" (3.2 mm ) 35-60a 0-30a 1000 800 600 400 300 200 100 80 60 40 30 20 10 8 6 4 3 2 1 .8 .6 .4 .3 .2 .1 .0 8 .0 6 .0 4 .0 3 .0 2 .0 1 2 3 4 6 8 10 20 30 40 60 80 100 200 300 400 600 800 1000 .0 8 .1 .2 .3 .4 .6 .8 1 .0 5 1/4a 1/2a 8/10a 1a 1 1/4a 1 1/2a 1 8/10a 2a 2 1/2a 3a 3 1/2a 4a 6a 8a 10a 12a 15a 20a 25a 30a 35a 60a time in second s current in amperes 578006 short circuit current* apparent rms symmetrical for various fuse ratings a a ? a 0a a 5a 0a 30a 5,000 160 190 330 370 525 600 625 750 0,000 180 220 400 440 600 700 725 875 5,000 200 250 430 480 675 775 800 950 0,000 220 260 460 520 720 825 850 1,000 5,000 230 280 480 550 750 850 900 1,050 30,000 240 290 500 570 800 900 950 1,125 35,000 245 300 520 590 825 925 975 1,175 0,000 255 310 550 600 850 975 1,000 1,200 50,000 260 330 570 640 875 1,000 1,100 1,300 0,000 280 340 600 670 900 1,050 1,125 1,350 0,000 300 360 625 700 1,000 1,125 1,200 1,400 00,000 310 380 650 750 1,050 1,200 1,250 1,500 50,000 340 420 700 800 1,150 1,300 1,400 1,600 00,000 350 440 750 850 1,200 1,400 1,450 1,750 *prospective rms symmetrical amperes short-circuit current note: data derived from peak let-thru curves
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