AMP-TRAP(R) BOLT-IN SERIES E-RATED/MEDIUM VOLTAGE FUSES 5kV Bolt-in fuses Amp-trap(R) Bolt-in Series E-rated fuses are single, double or triple barrel (3" diam.) with end mounts designed for bolting directly to equipment bus or terminal pads. They are UL listed and are for use indoors (or outdoors in a weatherproof enclosure). The unique time-current characteristic of Ferraz Shawmut E-rated fuses allows them to be closely sized to transformer full load rated current, as recommended by IEEE guidelines, without being affected by normal magnetizing inrush current. Bolt-in fuses are typically sized at transformer rated current of 133%, thereby providing superior overall protection. Features/Benefits UL Listed for compatibility with UL listed equipment Bolt-in mounting for direct connection to bus or terminals Current Limiting for superior equipment protection Blown-fuse indicator gives positive identification of open fuse Non-venting for silent operation HIGHLIGHTS: Applications: E-Rated UL Listed Complies with ANSI C37.46 Protection for 5.5kV transformers or distribution systems Metal Embossed Catalog Number and manufacturing date for lasting identification Ratings A055B AC: 10E TO 900E 5500V max, 63kA I.R. Sym. Definitions: E-rating E-rated fuses operate as follows: Over 100E - must melt in 600 seconds (10 mins.) on 220 to 264% of E (ampere) rating. Example - A 750E fuse must melt in 600 seconds with an applied current of 1650 to 1980 amperes. General Purpose Current-Limiting Fuse A general purpose current-limiting power fuse is one that is capable of interrupting all currents from its rated interrupting rating down to the current that causes melting of the fusible element in one hour. E 14 Approvals UL Listed to JEEG, "Fuses Over 600 Volts" UL File # E143362 AMP-TRAP(R) BOLT-IN SERIES E-RATED/MEDIUM VOLTAGE FUSES Figure A Figure B E Catalog Numbering System A 0 5 5 B 1 D A R 0 - 50 E Ampere Rating Revision/No. Special Features Diameter (D=3") No. of Barrels Style (B= Bolt-in Mount) Max. Voltage Rating (055=5.5kV) Amp-trap Fuse Figure C AMPERE NUMBER CATALOG NUMBER FIG. RATING OF BARRELS 5.5kV MAX. BOLT-IN STYLE - 17.88 (454 mm) HOLE CENTER - 3" (76.2 mm) BARREL DIAMETER A055B1DARO-10E A055B1DARO-15E A055B1DARO-20E A055B1DARO-25E A055B1DARO-30E A055B1DARO-40E A055B1DARO-50E A055B1DARO-65E A055B1DARO-80E A055B1DARO-100E A055B1DARO-125E A055B1DARO-150E A055B1DARO-175E A055B1DARO-200E 10E 15E 20E 25E 30E 40E 50E 65E 80E 100E 125E 150E 175E 200E 1 1 1 1 1 1 1 1 1 1 1 1 1 1 A A A A A A A A A A A A A A INTERRUPTING RATING RMS SYM. AMPERES* 63,000 5.5kV MAX. BOLT-IN STYLE - 17.88 (454 mm) HOLE CENTER - 3" (76.2 mm) BARREL DIAMETER A055B2DARO-250E A055B2DARO-300E A055B2DARO-350E A055B2DARO-400E A055B2DARO-450E 250E 300E 350E 400E 450E 2 2 2 2 2 B B B B B 63,000 C C C 63,000 5.5kV MAX. BOLT-IN STYLE - 23.73 (602.7 mm) HOLE CENTER - 3" (76.2 mm) BARREL DIAMETER A055B2DORO-450E A055B2DORO-500E A055B2DORO-600E 450E 500E 600E 2 2 2 * RMS ASYM. AMPS = RMS SYM. AMPERES x 1.6 E 15 AMP-TRAP(R) BOLT-IN SERIES E-RATED/MEDIUM VOLTAGE FUSES Current in Amps Total Clearing Time - Current Data A055B1DARO - 10E to 200E - A055B2DARO - 250E to 450E Time in Seconds Current in Amps Minimum Melting Time - Current Data A055B1DARO - 10E to 200E - A055B2DARO - 250E to 450E Time in Seconds E 16 AMP-TRAP(R) BOLT-IN SERIES E-RATED/MEDIUM VOLTAGE FUSES Current in Amps Total Clearing Time - Current Data A055B2D0RO - 450E to 600E E Time in Seconds Current in Amps Minimum Melting Time - Current Data A055B2D0RO - 450E to 600E Time in Seconds E E 17 17 AMP-TRAP(R) BOLT-IN SERIES E-RATED/MEDIUM VOLTAGE FUSES A055B1DARO - 10E to 200E - A055B2DARO - 250E to 450E Maximum Instantaneous Peak Let-Thru Amperes Peak Let-Thru Current Data, E-Rated Fuses Available Current in RMS Symmetrical Amperes A055B2D0RO - 450E to 600E Maximum Instantaneous Peak Let-Thru Amperes Peak Let-Thru Current Data, E-Rated Fuses Available Current in RMS Symmetrical Amperes E 18 AMP-TRAP(R) BOLT-IN E-RATED/MEDIUM VOLTAGE FUSES/A055B Catalog Numbering System 5.5kV Bolt-in A 0 5 5 B 3 D 0 R 0 - 9 0 0 E Ampere Rating Revision/No. Special Features Diameter (D=3") No. of Barrels Style (B= Bolt-in Mount) Max. Voltage Rating (055=5.5kV) Amp-trap Fuse Indicator Flush with Surface in Untripped Position 22.37 (568) E 11.62 (296) .38 (10) 25.11 (638) 1.50 (38) .44 .81 (12) x (24) 23.73 (603) .44 (12) 1.26 (32) Blown Fuse 3.00 (76) Catalog Numbers, Ratings, Dimensions, Bolt-in Series, 5.5kV NEW CATALOG OLD CATALOG AMPERE NUMBER OF NUMBER NUMBER RATING BARRELS INTERRUPTING RATING RMS SYM.* AMPERES 5.5kV Max. - Bolt-in Style - 23.73" (603mm) Hole Centers - 3" (76.2mm) Barrel Diameter A055B3DORO- 750E A550X 750E-4 750E 3 900E 900E-4 900E A050B4D0R0-1200E 1200E 4 * RMS ASYM. AMPERES = RMS SYM. AMPERES x 1.6 E E 19 19 63,000 59,000 AMP-TRAP(R) BOLT-IN E-RATED/MEDIUM VOLTAGE FUSES/A055B A055B3DORO - 750E to 900E A055B3DORO - 750E to 900E Total Clearing Time - Current Data, 5.5kV Fuses Time in Seconds Time in Seconds Minimum Melting Time - Current Data, 5.5kV Fuses Current in Amperes Current in Amperes Peak Let-Thru Current Data - 5.5kV Bolt-in Fuses Max. Instantaneous Peak Let-Thru Amperes A055B3DORO - 750E to 900E Available Current in RMS Symmetrical Amperes E 20