AMP-TRAP(R) MEDIUM VOLTAGE CAPACITOR FUSES/A100C-A550C MEDIUM VOLTAGE CAPACITOR FUSES Ferraz Shawmut capacitor fuses are designed to ANSI C37-41. They are current limiting operating without noise or discharge and are designed to be used indoors in a general purpose enclosure or outdoors in a weatherproof enclosure. These are non-disconnecting fuses requiring the use of a disconnect switch. These capacitor fuses provide both short circuit and overload protection and are intended to protect against capacitor case rupture or dielectric failure within the capacitor. The various mounting configurations offer manufacturers a wide range of cost and space saving solutions and a large choice of equivalent products to users. Applications: Capacitor Protection Power Factor Correction Equipment Harmonic Filtering Equipment Induction Heating System High Power Drive Welders Features/Benefits Ratings A100C AC: 25 to 125 Amps, 1000 V Maximum, 50 kA I.R. Sym. High interrupting capacity Current limitation Blown fuse indication A150C AC: 25 to 200 Amps, 1500 V Maximum, 40 kA I.R. Sym. Direct mount Clip style mount A250C AC: 25 to 200 Amps, 2500 V Maximum, 50 kA I.R. Sym. Bus mount Non-venting for silent operation A300C AC: 50 to 175 Amps, 3000 V Maximum, 50 kA I.R. Sym. Catalog Numbering System A430C AC: 6 to 100 Amps, 4300 V Maximum, 65 kA I.R. Sym. A 250 C 125 - 30 Voltage Rating / 10 (250 = 2.5kV) AC Voltage A550C AC: 6 to 50 Amps, 5500 V Maximum, 65 kA I.R. Sym. Current Rating Capacitor Fuse Mounting Configuration E E 39 39 E AMP-TRAP(R) MEDIUM VOLTAGE CAPACITOR FUSES/A550C 5.5 kV Catalog Numbers, Ampere Ratings, Dimensions Melting Part Ampere I2t Number Rating (kA2s) 5.5 kV Max Type 15 external female to bolt 0..004 0.4 A550C6-15 6 0.73 A550C8-15 8 1.14 A550C10-15 10 1.6 A550C12-15 12 3 A550C18-15 18 4.5 A550C20-15 20 6.5 A550C25-15 25 7.7 A550C30-15 30 9 A550C35-15 35 12 A550C40-15 40 15 A550C50-15 50 35 A550C65-15 65 43 A550C75-15 75 5.5 kV Max Type 70 tube to tube A550C6-70 A550C8-70 A550C10-70 A550C12-70 A550C18-70 A550C20-70 A550C25-70 A550C30-70 A550C35-70 A550C40-70 A550C50-70 A550C65-70 A550C75-70 1/2 - 13 UNC - 2B 0.4 0.73 1.14 1.6 3 4.5 6.5 7.7 9 12 15 35 43 6 8 10 12 18 20 25 30 35 40 50 65 75 Maximum Clearing I2t (kA2s) 2.49 4.31 6.38 8.64 15 22.1 31.2 36.2 41.4 54.6 68 156 186 2.49 4.31 6.38 8.64 15 22.1 31.2 36.2 41.4 54.6 68 156 186 Maximum 1 Phase Interrupting Rating (kA) Overall Length Inches (mm) A Tube Length Inches (mm) B Indicator Housing Inches (mm) C Body Dia Inches (mm) D 65 kA @ 5500V RMS Sym 9.50 (241.3) 7.12 (180.8) .75 (19.1) 2.00 (50.8) 8.00 (203.2) .75 (19.1) E 50 kA @ 5500V RMS Sym 65 kA @ 5500V RMS Sym 10.00 (254.0) 7.12 (180.8) 1.00 (25.4) 2.00 (50.8) 8.00 (203.2) .63 (15.9) 50 kA @ 5500V RMS Sym INDICATOR SIDE 1/2 - 13 UNC - 2A F 1.00 F Bracket Dimensions Inches (mm) E F E B A TYPE 15 C C F D C B INDICATOR SIDE A TYPE 70 E 53 E D AMP-TRAP(R) MEDIUM VOLTAGE CAPACITOR FUSES/A550C 5.5 kV Total Clearing Time-Current Data 5.5kV Type 15 & 70 Minimum Melting Time-Current Data 5.5kV Type 15 & 70 A550C (Amp Rating) - Type 15 & 70 A550C (Amp Rating) - Type 15 & 70 Peak Let-Thru Current Data 5.5kV Type 15 & 70 A550C (Amp Rating) - Type 15 & 70 E 54