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 • 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 CutlerHammer 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. 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) 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 Bussmann® JCK, JCK-A, JCK-B, JCH, JCL, JCL-A, JCL-B, JCG, JCR-A, & JCR-B R-Rated Fuses For Motor Circuit Protection Medium Voltage Specifications Buss Catalog No. Amperage Maximum Design Voltage A Dimensions (Inches) B C Construction Max. Int. Cap. Amps (Asym.) Amps (Sym.) Min. Int. Cap. 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 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 Bussmann® JCK, JCK-A, JCK-B, JCH, JCL, JCL-A, JCL-B, JCG, JCR-A, & JCR-B R-Rated Fuses For Motor Circuit Protection Medium Voltage Specifications Buss Catalog No. Amperage Maximum Design Voltage A Dimensions (Inches) B C Construction Max. Int. Cap. Amps (Asym.) Amps (Sym.) Min. Int. Cap. 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 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 Dimensional Data INDICATOR Showing Fuse is Open 0.38" (9.5mm) C INDICATOR Showing Fuse is Open A B Figure 1 Figure 2 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 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 JCK, JCK-A, JCL, JCL-A Time-Current Characteristic Curves–Minimum Melt Total Clearing Curves 167-A 168-A INSTANTANEOUS PEAK LET THRU CURRENT AMPERES Current Limitation Curves 184-A PROSPECTIVE SHORT CIRCUIT CURRENT (X10) RMS SYMMETRICAL AMPERES 2-26-03 SB03044 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 JCK-B, JCH Time-Current Curve: Minimum Melt 50999-1 Time-Current Curve: Total Clearing 50999-2 Peak Let-Through Curves INSTANTANEOUS PEAK LET THRU CURRENT AMPERES 50999-3 PROSPECTIVE SHORT CIRCUIT CURRENT (X10) RMS SYMMETRICAL AMPERES 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 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 JCL-B, JCG Time-Current Curve: Minimum Melt Time-Current Curve: Total Clearing 51000-2 51000-1 Peak Let-Through Curves INSTANTANEOUS PEAK LET THRU CURRENT AMPERES 51000-3 PROSPECTIVE SHORT CIRCUIT CURRENT (X10) RMS SYMMETRICAL AMPERES 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 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 JCR, JCR-B Time-Current Curve: Minimum Melt Time-Current Curve: Total Clearing 51001-2 51001-1 Peak Let-Through Curves INSTANTANEOUS PEAK LET THRU CURRENT AMPERES 51001-3 PROSPECTIVE SHORT CIRCUIT CURRENT (X10) RMS SYMMETRICAL 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 Data Sheet 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. 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