r-rated fuses for motor circuit protection medium voltage bussmann catalog symbol: jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b r-rated medium voltage current limiting 2400v ac jck, jck-a, jck-b, jch 4800v ac jcl, jcl-a, jcl-b, jcg 7200v ac jcr-a, jcr-b max. design voltage 2540v ac jck, jck-a, jck-b, jch 5080v ac jcl, jcl-a jcl-b, jcg 8300v ac jcr-a, jcr-b ul recognized: 2540v ac jck, jck-a 5080v ac jcl, jcl-a (2r-24r) ul recognized (guide #msss2, file # e96676) ? r-rated medium voltage fuses are back-up current limiting fuses used in conjunction with medium voltage motors and motor controllers. ? the jck-a, jcl-a, & jcr-a are supplied with cutler- hammer ampgard hookeye. ? this single hookeye is on one end of the fuse and aids in the insertion and removal of the fuse. ? current limiting fuses may be designated as r-rated if they meet the following requirements: 1. the fuse will safely interrupt all currents between its minimum and maximum interrupting ratings. 2. the fuse will melt in a range of 15 to 35 seconds at a value of 100 times the r number (ansi c37.46). ? bussmann r-rated current limiting fuses are designed for use with medium voltage starters to provide short-circuit protection for the motor and motor controller. ? these fuses offer a high level of fault current interruption in a self-contained, non-venting package which can be mounted indoors or in an enclosure. ? open fuse indication on all fuses. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b 2-26-03 sb03044 form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 1 of 8 data sheet: 6001
specifications buss maximum dimensions (inches) max. int. cap. min. int. cap. catalog no. amperage design voltage a b c construction amps (asym.) amps (sym.) amps (sym.) 2400v; r-rated; indoor/enclosure (see figure 1) jck-2r 70 2r 2540v 11.24 3.0 3.0 single 80,000 50,000 165 jck-3r 100 3r 2540v 11.24 3.0 3.0 single 80,000 50,000 220 jck-4r 130 4r 2540v 11.24 3.0 3.0 single 80,000 50,000 320 jck-5r 150 5r 2540v 11.24 3.0 3.0 single 80,000 50,000 410 jck-6r 170 6r 2540v 11.24 3.0 3.0 single 80,000 50,000 480 jck-9r 200 9r 2540v 11.24 3.0 3.0 single 80,000 50,000 720 jck-12r 230 12r 2540v 11.24 3.0 3.0 single 80,000 50,000 970 jck-18r 390 18r 2540v 11.24 3.0 3.0 double 80,000 50,000 1,430 jck-24r 450 24r 2540v 11.24 3.0 3.0 double 80,000 50,000 1,880 2400v; r-rated; indoor/enclosure; with cutler-hammer ampgard hookeye (see figure 1) jck-a-2r 70 2r 2540v 11.24 3.0 3.0 single 80,000 50,000 165 jck-a-3r 100 3r 2540v 11.24 3.0 3.0 single 80,000 50,000 220 jck-a-4r 130 4r 2540v 11.24 3.0 3.0 single 80,000 50,000 320 jck-a-5r 150 5r 27540v 11.24 3.0 3.0 single 80,000 50,000 410 jck-a-6r 170 6r 2540v 11.24 3.0 3.0 single 80,000 50,000 480 jck-a-9r 200 9r 2540v 11.24 3.0 3.0 single 80,000 50,000 720 jck-a-12r 230 12r 2540v 11.24 3.0 3.0 single 80,000 50,000 970 JCK-A-18R 390 18r 2540v 11.24 3.0 3.0 double 80,000 50,000 1,430 jck-a-24r 450 24r 2540v 11.24 3.0 3.0 double 80,000 50,000 1,880 2400v; r-rated; indoor/enclosure; bolt-on (see figure 2) jck-b-30 25 2540v 14.18 12.81 - single 80,000 50,000 100 jck-b-2r 70 2r 2540v 14.18 12.81 - single 80,000 50,000 180 jck-b-3r 100 3r 2540v 14.18 12.81 - single 80,000 50,000 270 jck-b-4r 130 4r 2540v 14.18 12.81 - single 80,000 50,000 360 jck-b-5r 150 5r 2540v 14.18 12.81 - single 80,000 50,000 450 jck-b-6r 170 6r 2540v 14.18 12.81 - single 80,000 50,000 540 jck-b-9r 200 9r 2540v 14.18 12.81 - single 80,000 50,000 740 jck-b-12r 230 12r 2540v 14.18 12.81 - single 80,000 50,000 1,080 jck-b-18r 390 18r 2540v 14.18 12.81 3.56 double 80,000 50,000 1,500 jck-b-24r 450 24r 2540v 14.18 12.81 3.56 double 80,000 50,000 2,200 2400v; r-rated; indoor; hermetically sealed, class 1, group d, div. 2, hazardous locations; for use with ampgard motor starters (see figure 1) jch-30 25 2540v 11.56 3.0 4.12 single 80,000 50,000 100 jch-2r 70 2r 2540v 11.56 3.0 4.12 single 80,000 50,000 180 jch-3r 100 3r 2540v 11.56 3.0 4.12 single 80,000 50,000 270 jch-4r 130 4r 2540v 11.56 3.0 4.12 single 80,000 50,000 360 jch-5r 150 5r 2540v 11.56 3.0 4.12 single 80,000 50,000 450 jch-6r 170 6r 2540v 11.56 3.0 4.12 single 80,000 50,000 540 jch-9r 200 9r 2540v 11.56 3.0 4.12 single 80,000 50,000 740 jch-12r 230 12r 2540v 11.56 3.0 4.12 single 80,000 50,000 1,080 jch-18r 390 18r 2540v 11.56 3.0 7.68 double 80,000 50,000 1,500 jch-24r 450 24r 2540v 11.56 3.0 7.68 double 80,000 50,000 2,200 4800v; r-rated; indoor/enclosure (see figure 1) jcl-2r 70 2r 5080v 15.76 3.0 3.0 single 80,000 50,000 165 jcl-3r 100 3r 5080v 15.76 3.0 3.0 single 80,000 50,000 220 jcl-4r 130 4r 5080v 15.76 3.0 3.0 single 80,000 50,000 320 jcl-5r 150 5r 5080v 15.76 3.0 3.0 single 80,000 50,000 410 jcl-6r 170 6r 5080v 15.76 3.0 3.0 single 80,000 50,000 480 jcl-9r 200 9r 5080v 15.76 3.0 3.0 single 80,000 50,000 720 jcl-12r 230 12r 5080v 15.76 3.0 3.0 single 80,000 50,000 970 jcl-18r 390 18r 5080v 15.76 3.0 3.0 double 80,000 50,000 1,430 jcl-24r 450 24r 5080v 15.76 3.0 3.0 double 80,000 50,000 1,880 2-26-03 sb03044 bussmann r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 2 of 8 data sheet: 6001
specifications buss maximum dimensions (inches) max. int. cap. min. int. cap. catalog no. amperage design voltage a b c construction amps (asym.) amps (sym.) amps (sym.) 4800v; r-rated; indoor/enclosure; with cutler-hammer ampgard hookeye (see figure 1) jcl-a-2r 70 2r 5080v 15.76 3.0 3.0 single 80,000 50,000 165 jcl-a-3r 100 3r 5080v 15.76 3.0 3.0 single 80,000 50,000 220 jcl-a-4r 130 4r 5080v 15.76 3.0 3.0 single 80,000 50,000 320 jcl-a-5r 150 5r 5080v 15.76 3.0 3.0 single 80,000 50,000 410 jcl-a-6r 170 6r 5080v 15.76 3.0 3.0 single 80,000 50,000 480 jcl-a-9r 200 9r 5080v 15.76 3.0 3.0 single 80,000 50,000 720 jcl-a-12r 230 12r 5080v 15.76 3.0 3.0 single 80,000 50,000 970 jcl-a-18r 390 18r 5080v 15.76 3.0 3.0 double 80,000 50,000 1,430 jcl-a-24r 450 24r 5080v 15.76 3.0 3.0 double 80,000 50,000 1,880 jcl-a-36r 650 36r 5080v 16.0 4.0 - double 100,000 63,000 3,200 4800v; r-rated; indoor/enclosure; bolt-on (see figure 2) jcl-b-30 30 5080v 19.25 17.88 - single 80,000 50,000 100 jcl-b-2r 70 2r 5080v 19.25 17.88 - single 80,000 50,000 180 jcl-b-3r 100 3r 5080v 19.25 17.88 - single 80,000 50,000 270 jcl-b-4r 130 4r 5080v 19.25 17.88 - single 80,000 50,000 360 jcl-b-5r 150 5r 5080v 19.25 17.88 - single 80,000 50,000 450 jcl-b-6r 170 6r 5080v 19.25 17.88 - single 80,000 50,000 540 jcl-b-9r 200 9r 5080v 19.25 17.88 - single 80,000 50,000 740 jcl-b-12r 230 12r 5080v 19.25 17.88 - single 80,000 50,000 1,080 jcl-b-18r 390 18r 5080v 19.25 17.88 3.31 double 80,000 50,000 1,500 jcl-b-24r 450 24r 5080v 19.25 17.88 3.31 double 80,000 50,000 2,200 4800v; r-rated; indoor; hermetically sealed, class 1, group d, div. 2, hazardous locations; for use with ampgard motor starters (see figure 1) jcg-30 30 5080v 16.6 3.0 4.12 single 80,000 50,000 95 jcg-2r 70 2r 5080v 16.6 3.0 4.12 single 80,000 50,000 180 jcg-3r 100 3r 5080v 16.6 3.0 4.12 single 80,000 50,000 270 jcg-4r 130 4r 5080v 16.6 3.0 4.12 single 80,000 50,000 350 jcg-5r 150 5r 5080v 16.6 3.0 4.12 single 80,000 50,000 450 jcg-6r 170 6r 5080v 16.6 3.0 4.12 single 80,000 50,000 540 jcg-9r 200 9r 5080v 16.6 3.0 4.12 single 80,000 50,000 700 jcg-12r 230 12r 5080v 16.6 3.0 4.12 single 80,000 50,000 1,000 jcg-18r 390 18r 5080v 15.85 3.0 6.31 double 80,000 50,000 1,450 jcg-24r 450 24r 5080v 15.85 3.0 6.31 double 80,000 50,000 2,000 7200v; r-rated; indoor/enclosure; with ampgard hookeye (see figure 1) jcr-a-2r 70 2r 8300v 15.85 3.0 4.12 single 80,000 50,000 200 jcr-a-3r 100 3r 8300v 15.85 3.0 4.12 single 80,000 50,000 320 jcr-a-4r 130 4r 8300v 15.85 3.0 4.12 single 80,000 50,000 405 jcr-a-5r 150 5r 8300v 15.85 3.0 4.12 single 80,000 50,000 550 jcr-a-6r 170 6r 8300v 15.85 3.0 4.12 single 80,000 50,000 670 jcr-a-9r 200 9r 7200v 15.85 3.0 4.12 single 80,000 50,000 1,300 jcr-a-12r 230 12r 7200v 15.85 3.0 4.12 single 80,000 50,000 1,500 jcr-a-18r 390 18r 7200v 15.85 3.0 7.43 double 80,000 50,000 2,000 jcr-a-24r 450 24r 7200v 15.85 3.0 7.43 double 80,000 50,000 2,600 7200v; r-rated; indoor/enclosure; bolt-on (see figure 2) jcr-b-2r 70 2r 8300v 19.25 17.88 - single 80,000 50,000 200 jcr-b-3r 100 3r 8300v 19.25 17.88 - single 80,000 50,000 320 jcr-b-4r 130 4r 8300v 19.25 17.88 - single 80,000 50,000 405 jcr-b-5r 150 5r 8300v 19.25 17.88 - single 80,000 50,000 550 jcr-b-6r 170 6r 8300v 19.25 17.88 - single 80,000 50,000 670 jcr-b-9r 200 9r 7200v 19.25 17.88 - single 80,000 50,000 1,300 jcr-b-12r 230 12r 7200v 19.25 17.88 - single 80,000 50,000 1,500 jcr-b-18r 390 18r 7200v 19.25 17.88 3.31 double 80,000 50,000 2,000 jcr-b-24r 450 24r 7200v 19.25 17.88 3.31 double 80,000 50,000 2,600 bussmann r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b 2-26-03 sb03044 form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 3 of 8 data sheet: 6001
bussmann r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b 2-26-03 sb03044 form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 4 of 8 data sheet: 6001 0.38" (9.5mm) b indicator showing fuse is open indicator showing fuse is open a c dimensional data figure 1 figure 2
bussmann r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b current limitation curves time-current characteristic curvesCminimum melt jck, jck-a, jcl, jcl-a 2-26-03 sb03044 184-a total clearing curves 168-a 167-a prospective short circuit current (x10) rms symmetrical amperes instantaneous peak let thru current amperes form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 5 of 8 data sheet: 6001
bussmann r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b 2-26-03 sb03044 form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 6 of 8 data sheet: 6001 time-current curve: minimum melt time-current curve: total clearing jck-b, jch 50999-1 peak let-through curves 50999-3 50999-2 prospective short circuit current (x10) rms symmetrical amperes instantaneous peak let thru current amperes
bussmann 2-26-03 sb03044 form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 7 of 8 data sheet: 6001 r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b time-current curve: minimum melt time-current curve: total clearing jcl-b, jcg 51000-1 peak let-through curves 51000-3 51000-2 prospective short circuit current (x10) rms symmetrical amperes instantaneous peak let thru current amperes
bussmann 2-26-03 sb03044 form no. jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b page 8 of 8 data sheet: 6001 r-rated fuses for motor circuit protection medium voltage jck, jck-a, jck-b, jch, jcl, jcl-a, jcl-b, jcg, jcr-a, & jcr-b time-current curve: minimum melt time-current curve: total clearing jcr, jcr-b peak let-through curves the only controlled copy of this data sheet is the electronic read-only version located on the bussmann network drive. all oth er copies of this data sheet are by definition uncontrolled. this bulletin is intended to clear- ly present comprehensive product data and provide technical information that will help the end user with design applications. b ussmann reserves the right, without notice, to change design or construction of any prod- ucts and to discontinue or limit distribution of any products. bussmann also reserves the right to change or update, without no tice, any technical information contained in this bulletin. once a product has been selected, it should be tested by the user in all possible applications. 51001-1 51001-2 51001-3 prospective short circuit current (x10) rms symmetrical amperes instantaneous peak let thru current amperes
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