Low Voltage Fuses General information Description FUJI low voltage current-limiting fuses are designed to give protection to power supply and distribution circuits and equipment such as motor starter and semiconductors. Since they can be supplied in a variety of types and ratings any circuit capacities can be accurately matched. FUJI current-limiting fuses have a high interrupting capacity and will prevent thermal and mechanical damage from heavy short circuits. AF97-635,634 BLC, CR and CS type Super Rapid Fuses These fuses are used exclusively for the protection of semiconductors, thyristors and silicon diodes. Since their total clearing I2t is very small protective coordination with semi-conductors is very easily carried out. Rated current: BLC type: 12 - 140 Amps CR type: 30 - 600 Amps CS type: 40 - 4700 Amps For further information see page 08/31. AF97-635,634 AFaC and BaC type current-limiting fuses These fuses have a high interrupting capacity of 100kA at 600V AC or DC and are suitable for power and control circuits. The fuse is a plug-in type, and it can easily be replaced by removing a screw cap. Rated current: 3 - 400 Amps For further information see page 08/26. Quick selection table Series AFaC Voltage Interrupting capacity rms sym (kA) 20 35 50 100 600V AC DC 3 to 100 Amps BaC (CS fuse: Typical value) Application 200 General use 125 to 200 Amps 250 to 400 Amps FCF 500V AC 1 to 60 Amps FCK 500V AC 3 to 600 Amps BLC 550V AC 12 to 140 Amps CR2L(S) 250V AC 10 to 600 Amps CR6L 600V AC 20 to 600 Amps CS5F 500V AC 40 to 1500 Amps CS10F 1000V AC 80 to 1500 Amps CS15F 1500V AC 450 to 1250 Amps General use Semiconductor protection AF97-642 08 FCF and FCK type current-limiting fuses These fuses are provided with special links with low-temperature melting characteristics, and are suitable for general power circuits because of their high interrupting capacity and good current-limiting performance. They are available in two types, a center-blade type and a solid ferrule type, with an insulated fuse body of high quality porcelain. Rated current: 1 - 600 Amps For further information see page 08/29. Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice 08/25 Low Voltage Fuses AFaC and BaC types AFaC and BaC type currentlimiting fuses 600V AC/DC, 3-400 Amps Description The AFaC and BaC type have an excellent current-limiting performance with an interrupting capacity as high as 100kA at 600V AC/DC. They are suitable for power circuits and control circuit applications including general power cubicles, distribution equipment, motor starters, load centers and control centers. The fuse assembly comprises base, screw cap, fuse link and adapter ring. The universal surface mounting terminals are provided with screws while the rear connection type are supplied with stud bolts. The fuse link can easily and safely be replaced by simply removing a screw cap. The diameter of the solid ferrule fuse link varies according to the rated current. The higher the rating, the greater the diameter. As a safety feature the screw cap can only be tightened when the fuse link matches with the adapter ring located inside the base. This prevents the cap from being tightened even when fuse AF97-634 O-1299 AFaC-60 Rear connection type Cap BaC-100 60A 200A Surface connection type Indicating winndow Screw cap Insulating plate Mounting plate Base Front bushing Faucet screw Fuse-Iink Rear bushing Terminal (load) Adapter ring Terminal (Iine) Contact spring Beae Thickness of mounting plate: 3.2mm or less link with larger ratings is inserted. The operating blown indication tip can be observed through the screw cap window. The tip color indicates the current rating - for instance, pink indicates 3A and red 10A. The tip is ejected to show that the fuse has blown. Both the base and the screw cap are made from a high class porcelain insulating material to ensure trouble-free operation. The fuse can be replaced without isolating the circuit. Since the fuse link is housed in a highly reliable porcelain barrel it is strong mechanically and thermally with no danger of explosion or production of noxious gases when blown. Components of AFaC and BaC type Parts FA776 Rated current (A) SD-39 Fuse-link Screw cap SD-39 Type Color of indicator Type Base Surface connection Type 3 5 10 15 20 30 BLA003 BLA005 BLA010 BLA015 BLA020 BLA030 Pink Brown Red Gray Blue Violet Pa30 AFa30 40 60 75 100 125 150 200 250 300 400 BLA040 BLA060 BLA075 BLA100 BLA125 BLA150 BLA200 BLA250 BLA300 BLA400 Black Light red Silver Red Yellow Light red Blue Green White Black Pa60 Adapter ring Type Color of adapter ring Ba30 R3 R5 R10 R15 R20 -- Pink Brown Red Gray Blue -- AFa60 Ba60 Pa100 AFa100 Ba100 Pa200 AFa200 Ba200 Pa400 AFa400 Ba400 R40 -- R75 -- R125 R150 -- R250 R300 -- Black -- Silver -- Yellow Light red -- Green White -- Minimum ordering quantity * Fuse-link BLA003 to 030 BLA 040, 060 BLA 075 to 200 BLA 250 to 400 100 pcs. 20 10 5 * Base * Screw cap Pa30 Pa60 Pa100 Pa200 Pa400 100 pcs. 50 10 5 1 * Adapter ring 08/26 SD-63 SDO 0091M AFa30 Ba30 AFa60 Ba60 AFa100 Ba100 AFa200 Ba200 AFa400 Ba400 R3 to 20, R75 R40, R125 to 300 Rear connection Type 100 pcs. 50 10 5 1 100 pcs. 50 Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses AFaC and BaC types Specifications Fuse-link Type Rated current (A) Rated voltage Interrupting capacity (kA) Max. interrupting I2t (Amp2 x sec.) BLA003 BLA005 BLA010 3 5 10 600V AC DC 100 BLA015 BLA020 BLA030 15 20 30 100 750 1.3 5 x 103 x 103 BLA040 BLA060 40 60 100 9.2 27 x 103 x 103 BLA075 BLA100 75 100 100 70 100 x 103 x 103 BLA125 BLA150 BLA200 125 150 200 50 290 390 500 x 103 x 103 x 103 BLA250 BLA300 BLA400 250 300 400 20 1800 2200 3000 x 103 x 103 x 103 28 110 500 Mounting on steel panel To mount a rear connection base Ba on a steel panel, an insulting plate and some bushings are used. Kits for 30, 60, 100, 200 and 400A base are available. Please specify your base type when ordering. Two front bushings are used with 100, 200 and 400A base only. Example: Insulating plate and bushings for Ba30 Ordering information Specify the following: 1. Type number Fuse-link BLA 003 Base AFa 30 Rated current Ex. 003 : 3 Amps 075 : 75 Amps 200 : 200 Amps Fuse-link Frame size 30: For 3 to 30A 60: For 40, 60A 100: For 75, 100A 200: For 125, 150, 200A 400: For 250, 300, 400A Connection AFa: Surface Ba : Rear Screw cap Pa 30 Frame size 30: For 3 to 30A 60: For 40, 60A 100: For 75, 100A 200: For 125, 150, 200A 400: For 250, 300, 400A Screw cap Tightening tool It is recommended that fuses with ratings of over 100A be tightened with a special tool since there is the possibility of overheating if the screw cap is not adequately tightened. This exclusive use tool is sold separately. Type Screw cap type Pa100H Pa200H Pa400H Pa100 Pa200 Pa400 AF90-316 08 AF97-644 Characteristic curves Current (A) Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Current-limiting characteristic Max. Let-through current (Peak value) kA Time Second Time Minute Permissible time-current characteristic Minute Melting time-current characteristic Second Current (A) Available current (Sym, rms) I eff. (kA) 08/27 Low Voltage Fuses AFaC and BaC types Dimensions, mm Fuse-link Type Position of indicator oD B B B A A oD A oD od od 3 to 30A od 40 to 60A 75 to 400A Base and cap Surface connection AFaC-3 to 200 Y1 Rated A current (A) B oD od Mass (g) BLA003 BLA005 BLA010 BLA015 BLA020 BLA030 3 5 10 15 20 30 50 50 50 50 50 50 10 10 10 10 10 10 13 13 13 13 13 13 8 8 8 10 10 14 12 12 12 12 12 12 BLA040 BLA060 40 60 50 50 10 10 27 27 16 20 47 62 BLA075 BLA100 75 100 63 63 5.4 5.4 34 34 5 8 120 120 BLA125 BLA150 BLA200 125 150 200 63 63 63 5.4 5.4 5.4 47 47 47 5 8 10 215 215 215 BLA250 BLA300 BLA400 250 300 400 63 63 63 5.4 5.4 5.4 61 61 61 5 8 10 380 380 380 Panel drilling Y2 D A D E D1 D1 K M1 H M C G L (Load) B B1 L (Line) Rear connection BaC-3 to 200 Type A B B1 C D (max.) AFaC-3 to 30 AFaC-40 to 60 AFaC-75 to 100 AFaC-125 to 200 34 52 67 77 42 55 46.5 59 82 51 87 125 71 107 150 73 24 34 40 51 D1 oE G H (max.) K L M M1 Y1 Y2 22 38 64 82 78.5 88 118 120 32 47 72 87 M5 M6 M8 M10 18 21 27.5 34 24 26 29.5 35 22 33 50 60 22 100 33.5 290 50 950 59.5 1465 5 5.5 7 7 10 10 28 28 Mass (g) L (2-o14) A 45 45 Panel drilling F F G A B (max.) (max.) C D E F Line BaC-3 to 30 BaC-40 to 60 BaC-75 to 100 BaC-125 to 200 47 47 66 66 85.5 85.5 112 112 52 54 71 78 62 65 70 75 10 18 22 28 14 78.5 M5 22.5 87.5 M6 30 112.5 M8 39 120 M10 H Surface connection AFaC-250 to 400 Mounting hole 4-7o K oL (max.) Mass (g) 32 47 72 87 220 470 1200 2115 Mass: 4.76kg M12x30 160 83 103 139.5 max 2-PF1/4 (2-o26) 140 209 max 90 15 83 51 70 4-M6 103 139.5 max Panel drilling ( ): In the case the steel plate is used. 209 max 102 max Panel drilling 160 102 max 6(14) 7(14) 9(25) 11(25) Rear connection BaC-250 to 400 70 117 max Mass: 4.37kg G H (max.) 117 max E Type D Load E C B K 140 140 ( ) :In the case the steel plate is used PF1/4(o13) 08/28 Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses FCF and FCK types FCF, FCK type current-limiting fuses 500V AC FCF Up to 60 Amps FCK Up to 600 Amps Description FCF and FCK HRC fuses use a specially designed low-temperature melting element, a feature of 'dual element' fuses. There is no fuse deterioration due to overcurrent phenomena such as rush current at the time of motor starting and they also feature time-lag operation characteristics. They operate rapidly and positively in the face of destructive short circuit currents. Since they are current-limiting fuses with a high capacity of 50kA (FCF types: 1 - 60 Amps) they are suitable for many types of power and control circuits. The fuse link is housed in a ceramic barrel with FCF series Ordering information Specify the following: 1. Type number Fuse-link FCF2-40 to 60 Type FCF2-1 FCF2-3 FCF2-5 FCF2-10 FCF2-15 FCF2-20 FCF2-30 FCF2-40 FCF2-50 FCF2-60 Note: Minimum ordering quantity Fuse-link: 100 pcs. 0 50 Dimensions, mm Fuse-link FCF2-1 to 30 T-7 o2 1 3 5 10 15 20 30 40 50 60 excellent thermal and mechanical characteristics and is packed in silica sand which prevents arcing. Thus there are no fears of explosion or production of noxious gases. The FCF's link end is a solid ferrule-type and available in 1 - 60 Amps ratings. The FCK is a center blade-type and available in 3 - 600 Amps ratings. The fuse links for the 75 Amps FCK and larger sizes are provided with a blown fuse indicator. Blown fuse indicator 5 Interrupting capacity (kA) AF97-643 FCK series fuse-link o1 Rated current (A) SD-240 FCF series fuse-link 13.5 13.5 16.5 16.5 50 75 Mass: 20g Mass: 80g Fuse-link FCK2-3 to 600 E C FCK series Interrupting capacity (kA) Fuse-link 08 D Rated current (A) Type B 3 5 10 15 20 30 35 FCK2-3 FCK2-5 FCK2-10 FCK2-15 FCK2-20 FCK2-30 40 50 60 FCK2-40 FCK2-50 FCK2-60 75 100 FCK2-75 FCK2-100 125 150 200 250 300 400 500 600 FCK2-125 FCK2-150 FCK2-200 FCK2-250 FCK2-300 FCK2-400 FCK2-500 FCK2-600 B A Type A B C D E Mass (g) FCK2-3 to 30 FCK2-40 to 60 FCK2-75, 100 FCK2-125 to 200 FCK2-250 to 400 FCK2-500, 600 50 75 95 110 120 145 15 19 25 35 50 60 o19.8 o24.9 o31 o45 o63 o75 13 16 20 30 40 50 66.5 96 122.5 148.5 170 205 35 95 180 470 1100 2000 Note: Minimum ordering quantity Fuse-link: 100 pcs. Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice 08/29 Low Voltage Fuses FCF and FCK types Characteristic curves FCF type FCK type Melting time-current characteristic Time Time Second Minute Minute Melting time-current characteristic Second Current (A) Current (A) Permissible time-current characteristic Second Time Second Time Minute Minute Permissible time-current characteristic Current (A) Current (A) Current limiting characterisitc Max. Let-through current (Peak value) kA Max. Let-through current (Peak value) kA Current limiting characterisitc Available current (Sym, rms) I eff. (kA) Available current (Sym, rms) I eff. (kA) 08/30 Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses BLC, CR and CS types Super Rapid Fuses 150-1500 Volts AC 10-4700 Amps Description The FUJI BLC, CR and CS types are extremely reliable fuses which have been specially developed to provide protection for silicon diodes and thyristors and are suitable for inverters using semiconductors or transformersrectifiers. FUJI Super Rapid Fuses are designed with a very small total I 2 t value which gives them a high speed interrupting action in the face of abnormal currents. In addition the arc voltage generated at the time of interruption has a low value so that faults will not influence related electric machinery and equipment. These fuses can carry out the protection of many types of circuits rating from the semiconductor overcurrents to destructive shortcircuiting faults-i.e. when the SD-36 BLC SM-388 CR2L SI-431 CS5F semiconductors short or circuits fail the sound elements will be quickly isolated from the fault circuits. Features * The total clearing I 2t is small and the semiconductor circuit is completely protected. * Since the peak arc voltage at the time of interruption is low damage to other equipment does not occur. SI-429 CS10F * High interrupting capacity of 200kA at 1000V AC * The CS type is provided with a blown fuse indicator. An alarm contact block (1NO or 1NC) can also be attached. UL recognized: CR2L/UL,CR2LS/UL, CR6L/UL (File No. E92312) CSA certificated: CR2LS/UL (File No. LO4000-4090) TUV: CR2LS/UL (10-100A), CR2L/UL (150-350A) (Rep. No. E9450643E02) CR6L/UL (50-300A) (Rep. No. E9560543E02) Specifications Rated current (A) 12 20 23 45 75 90 120 140 30 50 75 100 125 140 150 175 200 225 260 300 325 350 400 450 500 550 600 Rated Peak voltage arc voltage (V) 550V 1550 AC 1550 1550 1380 1250 1250 1200 1200 250V Max. AC 500 Max. interrupting I2t (Amp xsec.) Watt loss Fuse-link Rated current 2 x 103 0.09 0.27 0.39 1.8 5 11.5 33 100 0.35 0.85 2.3 4.0 6.5 7.0 9.5 13 17 22 27 38 49 60 103 140 160 200 215 Type (W) 5.1 8.5 10 19 32 38 51 59 4.0 6.0 9.0 12.0 14.0 16.0 18.0 21.0 23.0 26.0 30.0 35.0 37.0 37.0 39.0 46.0 48.0 51.0 56.0 BLC012-1 BLC020-1 BLC023-1 BLC045-1 BLC075-1 BLC090-1 BLC120-1 BLC140-1 CR2L-30 CR2L-50 CR2L-75 CR2L-100 CR2L-125 CR2L-140 CR2L-150 CR2L-175 CR2L-200 CR2L-225 CR2L-260 CR2L-300 CR2L-325 CR2L-350 CR2L-400 CR2L-450 CR2L-500 CR2L-550 CR2L-600 (A) 10 20 30 50 75 100 20 30 50 75 100 Rated Peak Max. voltage arc interrupting I2t voltage (Amp2xsec.) x 103 (V) 250V Max. 0.04 AC 500 0.17 0.35 0.85 2.3 4.0 600V Max. 0.14 AC 1200 0.35 1.8 3.0 7.0 150 200 250 300 350 400 500 600 18 30 70 95 150 200 390 700 Watt loss Fuse-link Type (W) 1.2 3.0 4.0 6.0 9.0 12.0 4.0 7.0 9.0 12.5 15 CR2LS-10 CR2LS-20 CR2LS-30 CR2LS-50 CR2LS-75 CR2LS-100 CR6L-20 CR6L-30 CR6L-50 CR6L-75 CR6L-100 22.0 34.0 37.0 40.0 45.0 55 60 70 CR6L-150 CR6L-200 CR6L-250 CR6L-300 CR6L-350 CR6L-400 CR6L-500 CR6L-600 08 Interrupting capacity CR2LS . 100kA at 250V AC CR6L .... 100kA at 600V AC Interrupting capacity BLC ...... 100kA at 550V AC CR2L .... 100kA at 250V AC Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice 08/31 Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Specifications Rated Intercurrent rupting capacity (A) 4700 2000 3000 40 75 100 150 200 250 300 350 400 450 500 600 800 1000 1000 1200 1200 1500 1000 1200 1500 80 100 150 200 250 300 350 400 500 560 630 750 800 1000 1250 1500 450 630 900 1250 Note: (kA) 150 at 125V AC 150 at 250V AC 200 at 500V AC Specifications (UL-recognized, CSA certified, TUV) Max. Watt interrupting I2t loss Fuse-link x 103 Type (Amp2xsec.) 14000 1950 5500 1 3.5 5 10 18.5 33 64 85 122 131 159 257 600 1200 843 1800 1311 3600 200 at 1800 800V AC 2500 4400 200 at 10 1000V AC 16 37 63 110 148 211 307 420 410 450 640 1259 1722 2250 3200 100 at 350 1500V AC 760 1400 3050 (W) 310 CS1F-4700 124 216 6.4 12 17 25 34 42 45 56 57 62 73 80 114 110 167 114 200 209 125 176 220 17 21 27 37 44 53 70 74 90 102 135 156 211 245 330 334 134 170 280 350 CS2F-2000 CS2F-3000 CS5F-40 CS5F-75 CS5F-100 CS5F-150 CS5F-200 CS5F-250 CS5F-300 CS5F-350 CS5F-400 CS5F-450 CS5F-500 CS5F-600 CS5F-800 CS5F-1000 CS5F-1000-P CS5F-1200 CS5F-1200-P CS5F-1500 CS8F-1000 CS8F-1200 CS8F-1500 CS10F-80 CS10F-100 CS10F-150 CS10F-200 CS10F-250 CS10F-300 CS10F-350 CS10F-400 CS10F-500 CS10F-560 CS10F-630 CS10F-750 CS10F-800-P CS10F-1000-P CS10F-1250-P CS10F-1500-C CS15F-450 CS15F-630 CS15F-900-P CS15F-1250-P * Peak arc voltage CS1F ..... Max. 450V CS2F ..... Max. 750V CS5F ..... Max. 1000V CS8F ..... Max. 2000V CS10F ... Max. 2000V CS15F ... Less than 3000V * An alarm contact block AHX2905 (1NO) or AHX2915 (1NC) can be attached to CS type. (Sold separately) See page 08/40. Note: UL recognized fuse In the UL recognized fuses, a fuse with a blown inidcation fuse, or a fuse both with a blown indication fuse and a precision switch is also UL recognized. Examples: CR2L-200G/UL CR2LS-30S/UL CR6L-100G/UL Rated Rated current voltage (A) 10 20 30 50 75 100 150 200 260 350 400 450 500 550 600 20 30 50 75 100 150 200 300 Note: Interrupting capacity (kA) 250V AC 10 at AC 400V DC (pf: 0.8) 10 at DC (L/R: 2ms) 600V AC 100 at AC 680V DC (pf: 0.8) 10 at DC (L/R: 2ms) 100 at AC (pf: 0.8) 50 at DC (L/R: 2ms) Max. interrupting I2t (Amp2xsec.) x 103 Fuse-link Type 0.04 0.17 0.35 0.85 2.3 4.0 (W) 1.2 3.0 4.0 6.0 9.0 12.0 CR2LS-10/UL CR2LS-20/UL CR2LS-30/UL CR2LS-50/UL CR2LS-75/UL CR2LS-100/UL 9.5 17 27 60 103 140 160 200 215 0.14 18.0 23.0 30.0 37.0 39.0 46.0 48.0 51.0 56.0 4.0 CR2L-150/UL CR2L-200/UL CR2L-260/UL CR2L-350/UL CR2L-400/UL CR2L-450/UL CR2L-500/UL CR2L-550/UL CR2L-600/UL CR6L-20/UL 0.35 7.0 CR6L-30/UL 1.8 3.0 7.0 18 9.0 12.5 15.0 22.0 CR6L-50/UL CR6L-75/UL CR6L-100/UL CR6L-150/UL 30 34.0 CR6L-200/UL 95 40.0 CR6L-300/UL * Peak arc voltage CR2LS, CR2L .... Max. 500V CR6L .................. Max. 1200V * The peak arc voltage is obtained by interruption caused by the listed interrupting current at rated voltage. * This indcates the values when the conductors specified in UL Standards are connected and rated current apply. * TUV: CR2LS, 2L: Up to 350A CR6L: 50 to 300A CR type fuse with optional accessory Fuse with blown indication fuse CR2L (S)- G AF88-446 Fuse with blown indication fuse and precision switch Precision switch (SPDT) CR2L (S)- S CRX-1 precision switch AF88-445 08/32 Watt loss AF88-442 Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Dimensions, mm BLC D BLC045 oD oD B B B A A B BLC075 to 140 C BLC012, 020, 023 oD CR2L-450 or smaller, CR2LS E A od od Mounting hole a x b od H Rated current (A) BLC012-1 12 BLC020-1 20 BLC023-1 23 BLC045-1 45 BLC075-1 75 BLC090-1 90 BLC120-1 120 BLC140-1 140 Note: A B 50 50 50 50 63 63 63 63 10 10 10 10 6 6 6 6 oD 13 13 13 27 34 34 47 47 od 10 14 14 20 5 8 8 8 Color of indicator Mass (g) Grey Yellow Violet White Silver Red Yellow Light red 12 12 12 62 120 120 120 215 The BLC type fuse link requires a holder in use. The size of the holder differs according to the fuse ratings. Select the most suitable one after referring to the Table on page 08/40. For drawings see page 08/28. Ordering information Specify the following: 1. Type number Type number nomenclature BLC 012-1 Rated current: 12 to 140A Plug-in type super rapid fuse CS 10F-1000 -P/ UL UL recognized (CR2L, CR2LS, CR6L) CSA certificated (CR2LS) TUV (CR2LS, CR2L, CR6L) Blown indicatin fuae (G type) G Type F A Type A CR2L-30 CR2L-50 CR2L-75 CR2L-100 CR2L-125 CR2L-140 CR2L-150 CR2L-175 CR2L-200 CR2L-225 CR2L-260 CR2L-300 CR2L-325 CR2L-350 CR2L-400 CR2L-450 CR2LS-10 CR2LS-20 CR2LS-30 CR2LS-50 CR2LS-75 CR2LS-100 B C D 80 58 18 80 58 E axb F 21.5 37 9x11 90 1.5 26.5 20 30.5 44 9x11 90 3 85 60 25 33.5 47 11x13 93 3.2 33.5 130g 95 70 30 42 11x13 98 4 39 220g 56 42 12 18.5 34.5 6.5x8.5 78 2 25 28g 54 G H Mass 42g 32.5 100g 08 CR2L-500 to -600 70 84 2-fuse connected parallel o37 30 Mounting hole 11x13 Rated current 10 to 4700A 41.5 43 46 6L: 2F: 8F: 15F: 600V AC 250V AC 800V AC 1500V AC 98 84 Blown indication fuse (G type) 8 Rated voltage 2L, 2LS: 250V AC, 1F: 150V AC, 5F: 500V AC, 10F: 1000V AC, 46.5 28 54 31 Optional accessory (See page 08/44) G: With blown indication fuse S: With blown indication fuse and precision switch CR: Barrel-shaped super rapid fuse CS: Cubic-shaped super rapid fuse Mass: 450g 95 Dimensions for reference only. Confirm before construction begins. Note: The dimensions of the fuses with suffix. UL are the same as those of the standard ones. Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice 08/33 Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Dimensions, mm CR6L-20, CR6L-30, CR6L-50 CR6L-75 to 300 62 CR6L-350 to 600 84 B H Mountng hole 6.5x8.5 25 88 74 30 Mountng hole 11x13 Blown indication D fuse (G type) 41.5 43 46 Mountng hole a x b 23.5 o37 54 C E 27 12 o17.5 47 18 34.5 18.5 B D 46.5 28 F 8 Blown indication fuse (G type) 76 Mass: 42g Type C A A A CR6L-75 CR6L-100 CR6L-150 B 95 70 CR6L-200 107 82 CR6L-250 CR6L-300 G 2 Blown indication fuse (G type) C D E 25 34 47 102 3.2 33.5 11x13 150 30 42 F G H 54 107 4 39 CS1F-4700 CS2F-2000, 3000 axb Mass (g) 11x13 246 Type A B C D Mass (g) CR6L-350 107 82 43 107 493 CR6L-400 CR6L-500 121 96 43 114 522 CR6L-600 121 96 47.4 114 545 CS5F-40 to 1500 CS10F-80 to 750 CS15F-450, 630 CS8F-1000, 1200, 1500 Alarm contact block 7 Alarm contat block AHX2905(NO) AHX2915(NC) Blown fuse indicator Blown fuse indicator 7 7 Alarm contact block 54.5 C C 84 max. 7 D D Blown fuse indicator 72 30 30 A A N.P. M B A A B 51 72 2-MIO M Mass: 800g Voltage Type 500V 08/34 A CS5F-40 CS5F-75 CS5F-100 CS5F-150 CS5F-200 47 CS5F-250 CS5F-300 CS5F-350 57 CS5F-400 CS5F-450 CS5F-500 CS5F-600 CS5F-800 72 CS5F-1000 CS5F-1200 CS5F-1500 72 B 47 51 51 51 C 42.5 47 54.5 54.5 (Max.) D Mass (g) 65.5 M8 320 70 77 77 M M8 M10 M12 Voltage Type A B C D M Mass (g) M12 1060 (Max.) 800V CS8F-1000 CS8F-1200 72 74 54.5 84 CS8F-1500 72 82 54.5 84 M8 1150 1000V CS10F-80 CS10F-100 47 71 42.5 65.5 M8 420 CS10F-150 CS10F-200 CS10F-250 57 74 47 70 M8 690 CS10F-300 CS10F-350 CS10F-400 CS10F-500 CS10F-630 CS10F-750 72 74 54.5 77 M10 1060 CS15F-450 CS15F-630 72 105 54.7 77 M10 1400 510 800 830 1500V Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Dimensions, mm CS5F-P CS10F-P, CS15F-P Characteristic curves BLC Melting time-current characteristic 7 Minute max.77 72 Time 72 40 5 H N.P. L 54.5 7 Alarm contat block M10 o15 Voltage Type H L Mass (g) 500V CS5F-1000-P CS5F-1200-P 51 69 1900 1000V CS10F-800-P CS10F-1000-P CS10F-1250-P 74 92 2420 1500V CS15F-900-P CS15F-1250-P 105 123 3100 max.77 Current (A) Operating time-current characteristic CS10F-1500-C 7 Second 86 158 M10 M10 Time 5 M10 107 108 89.5 Second Alarm contat block 99 74 Minute 7 40 72 08 o15 72 Mass: 2500g Current (A) Max. Let-through current (Peak value) kA Current-limiting characteristic Available current (Sym, rms) I eff. (kA) Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice 08/35 Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Characteristic curves CR2L, CR2LS Melting time-current characteristic Second CR6L-350 CR6L-400 CR6L-500 CR6L-600 CR6L-200 CR6L-250 CR6L-300 CR6L-150 CR6L-100 CR6L-50 CR6L-75 CR6L-30 CR6L-20 Second Time Time Minute Minute CR6L Melting time-current characteristic Current (A) Second CR6L-20 CR6L-200 CR6L-20 CR6L-250 CR6L-20 CR6L-300 CR6L-350 CR6L-400 CR6L-500 CR6L-600 CR6L-150 CR6L-100 CR6L-50 CR6L-75 CR6L-30 Second Time Time CR6L-20 Minute Operating time-current characteristic Minute Operating time-current characteristic Current (A) Current (A) Current (A) Available current (Sym, rms) I eff. (kA) 08/36 Current-limiting characteristic Max. Let-through current (Peak value) kA Max. Let-through current (Peak value) kA Current-limiting characteristic Available current (Sym, rms) I eff. (kA) Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Characteristic curves CS1F Melting time-current characteristic Minute Time Second Second Time Minute CS2F Melting time-current characteristic Current ( x 103A) Current ( x 103A) Operating time-current characteristic Time Second Second Time Minute Minute Operating time-current characteristic 08 Current ( x 103A) Current-limiting characteristic Max. Let-through current (Peak value) kA Max. Let-through current (Peak value) kA Current-limiting characteristic Current ( x 103A) Available current (Sym, rms) I eff. (kA) Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Available current (Sym, rms) I eff. (kA) 08/37 Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses CS8F Melting time-current characteristic Second Second Time Time Minute Minute Characteristic curves CS5F Melting time-current characteristic Current ( x 10A) Current ( x 103A) Operating time-current characteristic Second Second Time Time Minute Minute Operating time-current characteristic Current ( x 10A) Current ( x 103A) Current-limiting characteristic Max. Let-through current (Peak value) kA Max. Let-through current (Peak value) kA Current-limiting characteristic Available current (Sym, rms) I eff. (kA) Available current (Sym, rms) I eff. (kA) 08/38 Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Characteristic curves CS10F Melting time-current characteristic Minute Second Second Time Time Minute CS15F Melting time-current characteristic Current ( x 10A) Current ( x 103A) Operating time-current characteristic Second Second Time Time Minute Minute Operating time-current characteristic 08 Current ( x 10A) Current ( x 103A) Available current (Sym, rms) I eff. (kA) Current-limiting characteristic Max. Let-through current (Peak value) kA Max. Let-through current (Peak value) kA Current-limiting characteristic Available current (Sym, rms) I eff. (kA) Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice 08/39 Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Operating indication Blown fuse indication FUJI Super Rapid Fuses are available in BLC, CR and CS types. These types have different methods of indicating a blown fuse. BLC type A blown fuse is indicated by the color tip on the ferrule of the fuse being ejected as shown in Fig. 1. This can be seen through the window of the fuse holder. CR type This fuse does not have a blown indicator but if a trigger fuse is connected as shown in Fig. 2 this will provide the alarm for blown fuse. CS type This fuse is provided with a blown fuse indicator. In this case a pin in the contact pad is ejected after the fuse has been blown. If electrical connections for lamps or alarms are required fit the contact block (1NO or 1NC) to the pad as shown in Fig. 3. Fig. 3 Fig. 1 Alarm contact block AHX2905, 2915 SD-36 BLC type Fig. 2 CS10F SM-385 Line Alarm circuit Trigger fuse F Alarm circuit R SH-384 CS 10F with alarm contact block AF88-446 Load CR type Alarm contact block ratings Type Contact AHX2905 1NO AHX2915 1NC Rated voltage (V) AC Inductive cos=0.3~1 Rated operational Rated current (A) capacity (VA) 24 110 220 440 550 Fuse holder for BLC type fuse FUJI BLC fuses require special holders. Select the most suitable one which corresponds to the rated current of the fuse. Dimensions: See page 08/28. SD-36 Fuse link BLC 08/40 6 6 6 2.5 2 150 660 1320 1100 1100 Fuse link Rated current DC Resistive load Rated operational Rated current (A) capacity (W) 6 2.5 1 0.4 0.3 Type (A) Base Surface connection Type BLC012-1 BLC020-1 BLC023-1 BLC045-1 BLC075-1 BLC090-1 BLC120-1 BLC140-1 12 20 23 45 75 90 120 140 AFa30 AFa30 AFa30 AFa60 AFa100 AFa100 AFa200 AFa200 Inductive load Rated operational Rated current (A) capacity (W) 150 275 220 175 165 6 1.3 0.45 0.2 0.15 150 140 100 85 85 Screw cap Rear connection Type Adaptor ring Type Type Ba30 Ba30 Ba30 Ba60 Ba100 Ba100 Ba200 Ba200 Pa30 Pa30 Pa30 Pa60 Pa100 Pa100 Pa200 Pa200 R20 - - - R75 - - - AF88-439 Fuse holder Surface connection Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Application and selection guide BLC, CR and CS-type - Super rapid fuse When selecting fuses for semiconductor rectifier circuit protection the following conditions must be satisfied. For additional details contact FUJI. Conditions of application 1. The rated interrupting current of the fuse must be greater than the estimated short circuit current of the circuit. Available short circuit current of rectifier circuit < Fig. (a) Fuse ratings When selecting fuses various factors such as protection, coordination and load, etc. must be considered. However, in this catalog the main matters such as voltage, current and I 2t only are explained. Line fuse method In this method the fuses are connected to the AC line side. Rated voltage The rated voltage of the fuse indicates the maximum operational voltage and this also indicates the root-meansquare value of the AC sinusoidal wave voltage. Select fuses having a rated voltage exceeding the voltage obtained by the formula shown in the following table. (Fig. 1) Do not select current-limiting fuses with rated voltages drastically exceeding the rectifier circuit voltage. It is necessary to consider the arc voltage. Fig. (b) Rated interrupting current of fuse 2. The let-thru current value of fuse must be less than the allowable 1/2 cycle surge current value. Fuse let-thru current value < = Semiconductor - 1/2 cycle allowable surge current 10ms (at 50Hz) 3. The total clearing I2t value which the fuse requires to complete interruption must be less than the allowable I2t value of semiconductor. Fuse - total clearing I2t < = Semiconductor - I2t 4. The rated current of the fuse must be greater than the average forward current of the semiconductor. Fuse - rated current > Element fuse method In this method the fuses are connected in series to the semiconductor element. Fig. 1 Rated voltage required by fuses Wire connection type Single-phase bridge Wiring diagram Rated voltage of Fuse (VFN rms) For line fuse For element fuse Ea VFN > = a * Ea VFN > = a * Ea VFN > = a * Ea VFN > = a * 3 * Ea VFN > = a * 3 * Ea Semiconductor - average forward current Ea 3-phase bridge 5. The rated current and voltage of the fuse must be greater than those of the rectifier circuit. Fuse - rated current and voltage VFN > = a * Ea Ea > Rectifier circuit - current and voltage Method of application Semiconductor rectifier equipment has a variety of rectifier circuits. Taking the 3-phase bridge rectifier circuit as an example - Fig. (a) and (b) as shown in the following. Although the number of fuses used in the line fuse method (a) is half the number used in the element fuse method (b), the fuses must have a larger current capacity. 3-phase, double star Remarks: The 'a' is a coefficient where the regulation of the AC input voltage is taken into account. This is a=1.1 in case of voltage regulation 10%. Fig. 2 Element current and line current Wire connection type Wiring diagram Element fuse method Element current Ia Id Single-phase bridge I Id I 3-phase bridge 3-phase, double star Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice Id Ia = __ 2 = 0.707d Ia Ia Ia I Id Id Ia = __ 3 = 0.577dI Line fuse method Line current I I =d 2 Id 3 = 0.816dI I = Id__ 2 3 = 0.289dI I = Ia = 08/41 08 Low Voltage Fuses BLC, CR and CS types Super Rapid Fuses Example I2t All I2t values are ampere2 seconds. 08/42 Peak let-thru current (Actual short-circuit current) Calculation Peak current of first half cycle of available peak current (AC component) Short circuit current that would pass without currentlimiting fuse. DC component From the table (Page 08/38), the fuse with a total I2t nearest to 30,400A2 Sec. is the 260 Ampere fuse (CR 2L-260). Current Maximum I2t diode = ( 1 Peak )2 0.0167 2 = ( 2700 )2 0.0167 2 = 30,400A2 Sec. Interrupting current The rated interrupting current of the fuse must exceed the maximum value (Symmetrical RMS value) of the estimated circuit fault current. T How to find a let-thru current - Example Fuse: 200 Amps 500V Available R.M.S symmetrical current: 100,000 Amps pe ak Available 11,600 Let-thru 200A in Current limitation Select a fuse whose let-thru current value does not exceed the allowable 1/2 cycle surge current of the semiconductor. The allowable surge current is the peak value of the current which in case at 50Hz is allowed to flow for 10ms. In the current-limiting fuse the fault must be cleared in the shortest possible time or in the first 1/2 cycle. Available current is the current which would flow if the fuse were not currentlimiting. This would cause damage to equipment. Let-thru current is the actual current allowed to flow by the current limiting action of the fuse. A number of let-thru current graphs are given in this catalog and example is given in the following paragraph. The method of reading this graph is provided for your reference. 105,000 cu rre nt Pf =1 M:Melting time A :Arcing time T :Total clearing time st an ta ne ou s Peak arc voltage In the case of the current-limiting fuse an arc voltage (overvoltage) is generated at the time of interruption due to its fusible element construction. It is necessary to check that this peak arc voltage does not exceed the semiconductor's maximum (Nonrepetitive peak) reverse voltage value. Time M A la bl e Total clearing I t The total clearing I 2 t of fuse is a very important factor when considering the protective coordination of the semiconductor. This total clearing I 2t is the value where the arcing I 2 t is added to the melting I 2t. Therefore it is necessary to satisfy the following formula. Fuse - total < Semiconductor clearing I2t = I2t The total clearing I 2 t of fuse depends upon the operational voltage and interrupting current. Therefore, for this reason if a 500 Volts fuse is used in a 300 Volts circuit the total clearing I2t is reduced by 50-70%. However, the reduction rate varies according to the type of fuse construction. This must be checked and confirmed once more. Let-thru peak current (Instantaneous): 11,600 Amps Let-thru R.M.S. current 11,600 / 1.7 = 6,800 Amps This example clearly shows that while a 100kA (rms, sym) current is available, the fuse limits the current letthru to 6,800 Amperes (rms, sym). Av ai 2 The I2t data for silicon diodes or thyristor elements are normally given in their respective catalogs. If the A 2S data is not given in their catalog obtain the value in the following manner. If protection is needed for a 250V, 150A (Io) diode having a maximum allowable peak half sine wave current of 2700A, it is important that the fuse has a total I 2 t value lower than that of the diode. Let-thru peak current(Amperes)-Peak Rated current The current values in fuses in the line fuse system and the element fuse system are different. Obtain the correct current value from the table on page 08/41 (Fig. 2). When selecting the rated current of a fuse choose a fuse having an amperage rating greater than the current which flows in the semiconductor if the load is continuous and a fixed current. If the current which flows in the semiconductor is greater than the rated current of the fuse connect the fuses in parallel. However, in this case, if the numbers of fuses arranged in parallel are 'n', then the I2t value of the fuse will be n2*I2t and n2 times the I2t value of one fuse. This should be taken into consideration when protective coordination is taken into account. In the case of the circuit where the load rapidly varies the fuse element will suffer from mechanical deterioration and be damaged by thermal stress. In loads of this type the deterioration characteristics of the fuse must be closely considered. Moreover if the fuse current - time characteristics of the fuse selected is less than the overload characteristics of the semiconductor element then complete protection can be obtained. However, if the semiconductor element has a large capacity then protective cooperation is very difficult to arrange. The fuses are used to isolate the shorted semiconductor element circuit from sound operating circuits. 100,000A Available RMS symmetrical current(Ampere) Fuji Electric FA components & Systems Co., Ltd./D & C Catalog Information subject to change without notice