Bussmann(R) E-Rated Medium Voltage Fuses MV055 For Transformer and Feeder Protection 5.5 kV Electrical Characteristics Part Number Ampere Rating Min. Melt I2t Max. Clear I2t MV055F1CAX5E 5A 180 2400 MV055F1CAX7E 7A 850 8000 MV055F1CAX10E 10A 850 8000 MV055F1CAX15E 15A 2070 11000 MV055F1CAX20E 20A 2370 23000 MV055F1CAX25E 25A 4650 31000 MV055F1CAX30E 30A 9490 45000 MV055F1CAX40E 40A 9490 45000 MV055F1CAX50E 50A 13600 90000 MV055F1CAX65E 65A 30700 181000 MV055F1DAX10E 10A 850 8000 MV055F1DAX15E 15A 2070 12000 MV055F1DAX20E 20A 2370 23000 MV055F1DAX25E 25A 4650 31000 MV055F1DAX30E 30A 9490 45000 MV055F1DAX40E 40A 9490 45000 MV055F1DAX50E 50A 13600 90000 MV055F1DAX65E 65A 30700 181000 MV055F1DAX80E 80A 54600 270000 MV055F1DAX100E 100A 116200 580000 MV055F1DAX125E 125A 167400 600000 MV055F1DAX150E 150A 218700 786000 MV055F1DAX175E 175A 227900 1100000 MV055F1DAX200E 200A 297600 1520000 MV055F2DAX250E 250A 669600 2400000 MV055F2DAX300E 300A 874800 3149000 MV055F2DAX350E 350A 911600 4376000 MV055F2DAX400E 400A 1190400 6071000 MV055F2DAX450E 450A 1555000 9796000 Physical Size Length Dia. Clip Center Barrels 15.75 2 12 1 15.75 3 12 1 15.75 3 12 1 15.75 3 12 2 CATALOG SYMBOL: MV055 E-RATED MEDIUM VOLTAGE FUSES: Meets E requirements per ANSI C37.46 Meets Full Range requirements per ANSI C37.40 FOR TRANSFORMER AND FEEDER PROTECTION VOLTAGE RATING: 5.5 KV INTERRUPTING RATING: 50KA Maximum Sym. CURRENT LIMITING CONSTRUCTION: Silver ribbon element surrounded by silica filler housed in a fiberglass tube and plated endcaps. An epoxy paint protects the fuse tube from the surrounding environment. AGENCY INFORMATION: UL pending. FEATURES: * Standard Clip Center Lengths and Barrel Diameters. The new line of Bussmann medium voltage fuses have a standard clip center distance of 12 inches and barrel diameters of 2 or 3 inches which allow fuses to retrofit exisiting hardware. * Open Fuse Indication with Indicator. * 100% Tested for Reliability. All medium voltage fuses are pulsed twice with 90% of their minimum melt I2t to guarantee undamaged elements. This test does not affect undamaged elements. A damaged element completely opens when subjected to 90% of the minimum melt I2t, allowing it to be detected by a resistance check. * Full Range Fuses. Bussmann medium voltage fuses provide full range protection and are capable of interrupting fault currents up to 50,000A sym. * Time Current Curves and Dimensional Data: MV055F1CA series , see page 2; MV055F1DA series, see page 3. * Peak Arc Voltage Curves, and Peak Let-Through Data, see page 4. * Fuse Clips, see page 4. To order fuses with the optional striker pin, see Part Number Construction chart below. Part Number Construction Example Medium Voltage Voltage Rating MV 055 F 055 = 5.5 KV F = Full Range 155 = 15.5 KV Number of Barrels Barrel Diameter Clip Center Distance Indication Type Ampere Rating 1 C A X 5E 1 C = 2 inches A = 12 inches X = Indicator only 2 D = 3 inches B = 15 inches S = Striker Pin C = 18 inches 8-28-02 SB02371 Form No. MV055 Page 1 of 5 Data Sheet: 6700 Bussmann(R) E-Rated Medium Voltage Fuses MV055 For Transformer and Feeder Protection 5.5 kV - MV055F1CA Series Time-Current Characteristics Total Clear Time-Current Characteristics Minimum Melt 1000 10 10 40A 50A 65A 10000 1000 .01 10 .01 10000 .1 1000 .1 100 1 10 1 100 TIME IN SECONDS 10A 15A 20A 25A 30A 05A 100 TIME IN SECONDS 100 07A 65A 40A 50A 20A 25A 30A 15A 10A 05A 07A 1000 CURRENT IN AMPERES CURRENT IN AMPERES MV055F1CAX 15.61" 14.77" .21" BUSSMANN 2.03" O2.095" INDICATOR 12.00" CLIP CENTER 8-28-02 SB02371 .63" POSITION OF BLOWN INDICATOR AFTER OPERATING. Form No. MV055 Page 2 of 5 Data Sheet: 6700 Bussmann(R) E-Rated Medium Voltage Fuses MV055 For Transformer and Feeder Protection 5.5 kV - MV055F1DA Series 100 10 10 1 1 .1 .1 DOUBLE BARREL FUSE ASSY. SINGLE BARREL FUSE ASSY. SINGLE BARREL FUSE ASSY. CC208-2 125A 150A 175A 200A 250A 300A 350A 400A 450A 80A 100A 40A 50A DOUBLE BARREL FUSE ASSY. 65A 20A 15A 25A 30A 10A 125A 150A 175A 200A 250A 300A 350A 400A 450A 40A 50A 100 TIME IN SECONDS 100000 10000 1000 100000 10000 1000 100 10 CURRENT IN AMPERES 100 .01 .01 10 TIME IN SECONDS 65A 80A 100A 1000 20A 25A 30A 1000 15A Time-Current Characteristics Total Clear 10A Time-Current Characteristics Minimum Melt CURRENT IN AMPERES Double Barrel Dimensions MV055F1DAX 15.61" 14.77" 2.40" .21" BUSSMANN .63" O2.96" O1.30" O3.38" 12.00" CLIP CENTER 8-28-02 SB02371 3.50" INDICATOR 6.68" POSITION OF BLOWN INDICATOR AFTER OPERATING. Form No. MV055 Page 3 of 5 Data Sheet: 6700 Bussmann(R) E-Rated Medium Voltage Fuses MV055 For Transformer and Feeder Protection 5.5 kV - Peak Arc Voltage & Peak Let-Through Data Max. Peak Let-Through Current Curves MAXIMUM PEAK ARC VOLTAGE FOR "E" RATED FULL RANGE POWER FUSE (BUSSMANN) B 100 50 450A 400A 300A 250A 200A 175A 125A 100A 80A 65A 150A 50A 40A 30A 25A 20A 15A 07&10A 10 MAXIMUM LET-THRU (Peak Kiloamperes) 40 MAXIMUM PEAK ARC VOLTAGE (KV) 350A 05A 1 A 30 20 10 10 1 .1 100 .1 AVAILABLE CURRENT IN KILOAMPERES (RMS Symmetrical) 20 15 10 5 0 0 CIRCUIT VOLTAGE (KV) Recommended Fuse Clips for Medium Voltage Fuses Part No. Fuse Clip Dimensions Diameter A B A3354710 A3354730 2" 3" 3.74" 4.13" 1.97" 2.44" C 2.00" 3.00" D E F G 1.18" 4.53" 1.50" .39" 1.18" 5.63" 1.50" .39" Fuseclips are for single barrel applications up to 200E. C A G F D E B 8-28-02 SB02371 Form No. MV055 Page 4 of 5 Data Sheet: 6700 Bussmann(R) E-Rated Medium Voltage Fuses MV055 For Transformer and Feeder Protection 5.5 kV - Cross Reference Data Catalog Number Cross Reference Bussmann Gould (New) Gould (Old) Westinghouse MV055F1CAXxxxE A055F1CORO-xxxE A550X-xxxE-1B ---- ---- General Electric ---- MV055F1DAXxxxE A055F1DORO-xxxE A550X-xxxE-1F 5HLE-xxxE-1 9F60FJDxxx 9F62DCBxxx MV055F2DAXxxxE A055F2DORO-xxxE A550X-xxxE-1 ---- ---- ---- Bussmann Medium Voltage Cross Reference Overall Sym. E Ratings Available Length kA Manufacturer 5 7 10 15 15-3/4" 50 Bussmann S S S S 5.5 kV 2" 12" 14-11/100" 63 Gould S S S S 15-3/4" 50 Bussmann S S 15-7/8" 63 Gould S S 5.5 kV 3" 12" 15-7/8" 63 Westinghouse 15-7/8" 63 General Electric *Single barrel available as JCU-250E Gould, Westinghouse and General Electric are General Purpose Fuses kV Dia. Clip Center S = Single Barrel 20 S S S S 25 S S S S 30 S S S S S S 40 S S S S S S D = Double Barrel 50 S S S S S S 65 S S S S S S 80 S S S S 100 125 150 175 S S S S S S S S S S S S S S S S 200 250 300 350 400 450 S S S S D* D S D D D D D D D D D D D D D D D D D Current-limiting medium voltage fuses are classified into three categories: Full Range - defined by ANSI as "a fuse capable of interrupting all currents from the maximum rated interrupting current down to the minimum continuous current that causes melting of the fusible element(s), when the fuse is applied at the maximum ambient temperature specified by the manufacturer." It is able to interrupt any normal 60 cycle current that will melt its element. General Purpose - defined by ANSI C37.40 as "a fuse capable of interrupting all currents from the maximum rated interrupting current down to the current that causes melting of the fusible element in one hour." Not all currents fall within this range. It is possible to receive an overcurrent lower than the value given by the one hour criterion. Back-up - defined by ANSI C37.40 as "a fuse capable of interrupting all currents from the maximum rated interrupting current down to the rated minimum interrupting current." The minimum rated interrupting current is the lowest current that the fuse will be able to clear properly. This creates a need to place a low current interrupting device in series with the back-up rated fuse. All Bussmann MV series medium voltage fuses are E-rated and offer Full Range Protection. 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 BIF 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. 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. 8-28-02 SB02371 Form No. MV055 Page 5 of 5 Data Sheet: 6700