e 1 e 1 amp-trap ? bolt-i n series e-rate d / medium voltage fuses a055b ac: 10e to 900e 5500v max, 63ka i.r. sym. ? ratings 5 k v b olt - i n fuses amp-trap ? 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. ul listed to jeeg, fuses over 600 volts ul file # e143362 ? approvals applications: protection for 5.5kv transformers or distri - bution systems ? feature s / 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 n on-venting for silent operation metal embossed catalog n umber and manufacturing date for lasting identification ? ? ? ? ? ? highlights: e-rated ul listed complies with ansi c37.46 ? ? ? d efi n itio n s : 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 e 1 e 1 amp-trap ? bolt-i n series e-rate d / medium voltage fuses figure a figure b figure c a 0 5 5 b 1 d a r 0 - 5 0 e ampere rating reision/no. special features diameter (d3) no. o barrels style (b bolt-in mount) max. voltage rating (0555.5kv) amp-trap fuse catalog numbering system * rms asm amps rms sm amprs x 1 catalog number ampere number fig. interrupting rating rating of barrels rms sym. amperes* 5.5kv max. bolt-in style - 17.88 (454 mm) hole center - 3 (76.2 mm) barrel diameter 5.5kv max. bolt-in style - 17.88 (454 mm) hole center - 3 (76.2 mm) barrel diameter a055b2daro-250e 250e 2 b a055b2daro-300e 300e 2 b a055b2daro-350e 350e 2 b 63,000 a055b2daro-400e 400e 2 b a055b2daro-450e 450e 2 b 5.5kv max. bolt-in style - 23.73 (602.7 mm) hole center - 3 (76.2 mm) barrel diameter a055b2doro-450e 450e 2 c a055b2doro-500e 500e 2 c 63,000 a055b2doro-600e 600e 2 c e
e 1 e 1 a055b1daro - 10e to 200e - a055b2daro - 250e to 450e a055b1daro - 10e to 200e - a055b2daro - 250e to 450e current in amps current in amps total clearing time C current data minimum melting time C current data time in seconds time in seconds amp-trap ? bolt-i n series e-rate d / medium voltage fuses
e e 1 e e 1 amp-trap ? bolt-i n series e-rate d / medium voltage fuses a055b2d0ro - 450e to 600e a055b2d0ro - 450e to 600e time in seconds current in amps current in amps time in seconds total clearing time C current data minimum melting time C current data
e 1 e 1 amp-trap ? bolt-i n series e-rate d / medium voltage fuses a055b1daro - 10e to 200e - a055b2daro - 250e to 450e peak let-thru current data, e-rated fuses peak let-thru current data, e-rated fuses maximum instantaneous peak let-thru amperes maximum instantaneous peak let-thru amperes available current in rms symmetrical amperes available current in rms symmetrical amperes a055b2d0ro - 450e to 600e
e e 1 e e 1 amp-trap ? bolt-i n e-rate d / medium voltage fuse s/ a055b catalog numbers, ratings, dimensions, bolt-in series, 5.5kv interrupting new catalog old catalog ampere number of rating number number rating barrels rms sym.* amperes 5.5kv max. C bolt-in style C 23.73 (603mm) hole centers C 3 (76.2mm) barrel diameter a055b3doro- 750e a550x 750e-4 750e 3 63,000 900e 900e-4 900e a050b4d0r0-1200e 1200e 4 59,000 5.5kv bolt-in a 0 5 5 b 3 d 0 r 0 - 9 0 0 e catalog numbering system * rms asm amprs rms sm amprs x 1 indicator lush ith surace in ntripped position blon use 23.73 (603) 1.50 (38) .44 (12) x .81 (24) .44 (12) 25.11 (638) 22.37 (568) 1.26 (32) 3.00 (76) .38 (10) 11.62 (296)
e 0 e 0 amp-trap ? bolt-i n e-rate d / medium voltage fuse s/ a055b minimum melting time C current data, 5.5kv fuses time in seconds current in amperes a055b3doro C 750e to 900e a055b3doro C 750e to 900e total clearing time C current data, 5.5kv fuses peak let-thru current data C 5.5kv bolt-in fuses available current in rms symmetrical amperes max. instantaneous peak let-thru amperes a055b3doro C 750e to 900e time in seconds current in amperes
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