medium voltage fuses medium voltage fuses mv 57 12/04 american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b r-rated motor starter fuses amp-trap r-rated fuses are current-limiting, high inter- rupting rating fuses intended for the short-circuit protec- tion of medium voltage motors and motor controllers. r- rated fuses have a minimum interrupting rating and must be coordinated with overload relays in combination motor starters. the motor starter manufacturer generally specifies the r-rated fuse size. amp-trap r-rated fuses are-rated 2r to 36r, at 2.4, 4.8, and 7.2kv. 4.8 and 7.2kv fuses are ul recognized. the 4.8kv (a480r) is available with hookeye tab. the 7.2kv (a072f) series has the same dimensions as the 4.8kv (a480r), allowing smaller 7.2kv equipment or 4.8kv upgrades. the a072b is a bolt-in 7.2kv fuse. features /benefits ? ferrule mounting for standard clips and interchangeability with other brands of fuses. ? 7.2kv series has the same dimensions as 4.8kv fuses, allowing compact, higher voltage-rated equipment designs. ? 7,2kv bolt-in design for improved design flexibility. ?optional hookeye on 4.8 kv for non load-break isolation by hookstick. ratings a240r ac: 2r to 36r 2750v, 45ka i.r. sym. a480r ac: 2r to 36r 5500v, 63ka i.r. sym. a072f - a072b ac: 2r to 24r 7200v, 50ka i.r. sym. back-up type current-limiting fuse: a current limiting fuse which can interrupt any current between it s rated minimum interrupting current and it s maximum interrupting current. backup fuses are not designed or intended to open under overload conditions. highlights ?r-rated ?ul recognized in 4.8 and 7,2 kv ratings applications short circuit protection of medium voltage motors and motor controllers approvals ?ferraz shawmut certified - a240r @ 2750v, 45ka sym. ?ul recognized component - a480r @ 5080v, 50ka, sym. - a072f @ 7200v, 50ka, sym. - a072b @ 7200v, 50ka, sym. ?ul file # e93367 spring-reinforced clips ?228-700-530 (one pair of clips)for 3?diameter, 2 barrels max.
medium voltage fuses medium voltage fuses mv 58 12/04 american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b a240r 2.4kv ferrule style catalog and reference numbers, ratings, dimensions, 2.4kv * this rating defines the fuse? long-term thermal capability per ansi c37 46-1981 and should not be the sole factor for selecting a specific r-rating. ** not recommended for use in fuse clips which grasp only one barrel. figure a figure b figure c 3 (76) (76) (76) (76) (12,7) (84,1) (84,1) (84,1) (12,7) (12,7) (76) (76) (76) (76) (76) 33 3 3 3 indicator flush with surface 2 lb. force (tripped) catalog reference continous minimum number number ampere dim. interrupting maximum fig. size rating l rating tested standard at 40? rms amperes rms rms asym sym a240r2r j201557 2r 70 170 a240r3r f211812 3r 100 250 a a240r4r e212846 4r 130 340 a240r6r e213858 6r 170 10-7/8 500 70ka 45ka a240r9r p214373 9r 200 (276mm) 760 @ @ A24OR12R r219504 12r 230 1000 2750v 2750v b a24or18r n221962 18r 390 1500 a240r24r l223225 24r 450 1950 c a240r36r w211297 36r** 650 2900 a240r
medium voltage fuses medium voltage fuses mv 59 12/04 minimum melting time ?current data, 2.4kv fuses time in seconds current in amperes time in seconds current in amperes a240r2r to 36r, 2400 volts a240r2r to 36r, 2400 volts american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b total clearing time ?current data, 2.4kv fuses
medium voltage fuses medium voltage fuses mv 60 12/04 available current in rms symmetrical amperes maximum instantaneous peak let-thru amperes a240r2r to 36r, 2400 volts peak let-thru current data, r-rated fuses american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b
medium voltage fuses medium voltage fuses mv 61 12/04 a480r 4.8kv ferrule style * this rating defines the fuse? long-term thermal capability per ansi c37 46-1981 and should not be the sole factor for select ing a specific r-rating. ** not recommended for use in fuse clips which grasp only one barrel. catalog and reference numbers, ratings, dimensions, 4.8kv american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b catalog reference continous minimum 1 phase interrupting rating number number ampere dim. interrupting ul component maximum fig. size rating l rating recognition tested standard at 40? rms amperes rms rms rms rms asym sym asym sym a480r2r-1 p221963 a2r 70 190 a480r3r-1 k201558 3r 100 225 a480r4r-1 g211813 4r 130 330 a a480r5r-1 q213362 5r 150 400 80ka 50ka 100ka 63ka a480r6r-1 q214374 6r 170 15-7/8 500 @ @ @ @ a480r9r-1 w215897 9r 200 (403mm) 740 5080v 5080v 5500v 5500v a480r12r-1 n214878 12r 230 955 b a480r18r-1 z216406 18r 390 1440 a480r24r-1 h218461 24r 450 1910 c a480r36r-1 c201045 36r** 650 2810 a480r2r-1he x222706 2r 70 190 a480r3r-1he s203428 3r 100 225 a480r4r-1he r212328 4r 130 330 a a480r5r-1he f213859 5r 150 16-1/8 400 80ka 50ka 100ka 63ka a480r6r-1he p214879 6r 170 (410mm) 500 @ @ @ @ a480r9r-1he a216407 9r 200 740 5080v 5080v 5500v 5500v a480r12r-1he s215388 12r 230 955 b a480r18r-1he g216919 18r 390 1440 a480r24r-1he a218983 24r 450 1910 figure a figure b figure c indicator flush with surface 2 lb. force (tripped) indicator flush (tripped position) hookeye illustration 33 33 3 (76) (76) (76) (76) (8) (25.4) (12,7) (84,1) (84,1) (84,1) (12,7) (76) (76) (76) (76) (76) 3 a480r-1he with hookeye a480r-1
medium voltage fuses medium voltage fuses mv 62 12/04 minimum melting time ?current data, 4.8kv fuses time in seconds current in amperes time in seconds current in amperes total clearing time ?current data, 4.8kv fuses a480r-1, and a480r-1he, 4800 volts a480r-1, and a480r-1he, 4800 volts american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b
medium voltage fuses medium voltage fuses mv 63 12/04 american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b available current in rms symmetrical amperes maximum instantaneous peak let-thru amperes a480r-1 and a480r-1he, 4800 volts peak let-thru current data, r-rated fuses
medium voltage fuses medium voltage fuses mv 64 12/04 7.2kv ferrule & bolt-in types blown fuse indicator extends 0.5 in. (12.7mm) when fuse opens, with 2 lbs. of force at end of travel (413.1) (6.3) 16.26 (413.1) 7.62 (194) 19.25 (488) 17.88 (454.2) 1.53 (38.8) .44 x .91 (11 x 23) .25 (6.3) 16.26 (92.2) 3.63 .25 (76.2) 3.00 (76) 3 3 15.88 (403) 15.88 (403) 3 3 3 3.312 (84.1) 0.5 (12.7) 0.5 (12.7) american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b a 0 7 2 f 1 d 0 r 0 - 12r r rating revision/no. special features diameter (d=3") no. of barrels style (f=ferrule , b=bolt-in mount) nominal voltage rating (072=7.2kv) amp-trap fuse catalog numbering system reference and catalog numbers, ratings, dimensions, 7.2kv allowable minimum 1 phase interrupting rating figure catalog reference rating continuous interrupting ul component recognition number number ampere rating rating at 40?c rms amperes rms asym. rms sym. a072f1doro-2r 2r 70 190 a072f1doro-3r 3r 100 225 a072f1doro-4r 4r 130 330 a a072f1doro-5r 5r 150 400 80ka 50ka a072f1doro-6r 6r 170 500 @@ a072f1doro-9r 9r 200 740 7200v 7200v a072f1doro-12r 12r 230 955 b a072f2doro-18r 18r 390 1440 a072f2doro-24r 24r 450 1910 a072b1daro-2r 2r 70 190 a072b1daro-3r 3r 100 225 a072b1daro-4r 4r 130 330 80ka 50ka c a072b1daro-5r 5r 150 400 @ @ a072b1daro-6r 6r 170 500 7200v 7200v a072b1daro-9r 9r 200 740 a072b1daro-12r 12r 230 955 d a072b2daro-18r 18r 390 1440 a072b2daro-24r 24r 450 1910 ferrule type bolt-in type (76) (76) (76) figure a figure b figure d figure c m214877 r215387 t215895 y216405 f216918 t217436 n214372 g218460 z218982 h201556 r203427 v211296 e211811 p212326 d212845 b201044 n213360 d213857
medium voltage fuses medium voltage fuses mv 65 12/04 minimum melting time ?current data, 7.2kv fuses time in seconds current in amperes time in seconds current in amperes a072f2 and a072b, 7200 volts total clearing time ?current data, 7.2kv fuses a072f and a072b, 7200 volts american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b
medium voltage fuses medium voltage fuses mv 66 12/04 american fuses r-rated 2.4kv - 4.8kv/7.2kv - a 240r/a 480r/a 072f/a 072b available current in rms symmetrical amperes maximum instantaneous peak let-thru amperes ao72f and a072b2, 7200 volts peak let-thru current data, r-rated fuses
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