b 30 applications: ? feeders ? branch circuits ? resistive heating ? residential and small commercial installations ? ot ac: 1 to 600a 250vac, 50ka i.r. ? otn (canada) ac: 15 to 60a 250vac, 50ka i.r. ? ots ac: 1 to 600a 600vac, 50ka i.r. one-time ot/otn/ots class k-5 ratings features / benefits ? easy to read imprint label for quick recognition and replacement ? low cost for high protection value for versatility and economy , these general purpose fuses are hard to beat ot, otn and ots general purpose fuses provide low cost protection for feeder and branch circuits serving lighting, heating, and other non-motor loads. ot, otn and ots fuses will safely interrupt available short circuit currents up to 50,000 amperes in all ratings. ot, otn and ots fuses are not rejection fuses care should be taken to ensure that replacement fuses do not have lower interrupting ratings than original fuses. otn 15 through 60 satisfy the canadian electrical code requirement for type ?,?low melting-point, non-time delay fuses. ? ul listed to standard 248-9 ? csa certified to standard c22.2 no. 248.9* * the canadian electrical code requires these fuses in ratings 15 through 60a to be of the low melting point design use otn 15-60. approvals highlights: ? versatile ? lowest cost protection for circuits serving non-inductive loads
b 31 pf general purpose / class k-5 fuses ot/otn/ots one-time ampere catalog number ampere catalog number ampere catalog number rating 250v 600v rating 250v 600v rating 250v 600v 1 ot1 ots1 30 ot30, otn30* ots30 125 ot125 ots125 2 ot2 ots2 35 ot35, otn35* ots35 150 ot150 ots150 3 ot3 ots3 40 ot40, otn40* ots40 175 ot175 ots175 4 ot4 ots4 45 ot45, otn45* ots45 200 ot200 ots200 5 ot5 ots5 50 ot50, otn 50* ots50 225 ot225 ots225 6 ot6 ots6 60 ot60, otn60* ots60 250 ot250 ots250 7 ot7 ots7 65 ot65 ots65 300 ot300 ots300 8 ot8 ots8 70 ot70 ots70 350 ot350 ots350 10 ot10 ots10 75 ot75 ots75 400 ot400 ots400 12 ot12 ots12 80 ot80 ots80 450 ot450 ots450 15 ot15, OTN15* ots15 90 ot90 ots90 500 ot500 ots500 20 ot20, otn20* ots20 100 ot100 ots100 600 ot600 0ts600 25 ot25, otn 25* ots25 110 ot110 ots110 standard fuse ampere ratings, catalog numbers ampere a b c d e rating in. mm in. mm in. mm in. mm in. mm 250v-ot, otn fuses 0-30 2 51 9/16 14 - - - - - - 31-60 3 76 13/16 21 - - - - - - 61-100 5-7/8 149 1-1/16 27 1/8 3 3/4 19 1 25 101-200 7-1/8 181 1-9/16 40 3/16 5 1-1/8 28 1-3/8 35 201-400 8-5/8 219 2-1/16 53 1/4 6 1-5/8 41 1-7/8 48 401-600 10-3/8 264 2-9/16 66 1/4 6 2 51 2-1/4 57 600v-ots fuses 0-30 5 127 13/16 21 --- - - - 31-60 5-1/2 139 1-1/16 27 --- - - - 61-100 7-7/8 200 1-5/16 34 1/8 3 3/4 19 1 25 101-200 9-5/8 244 1-13/16 46 3/16 5 1-1/8 28 1-3/8 35 201-400 11-5/8 295 2-9/16 66 1/4 6 1-5/8 41 1-7/8 48 401-600 13-3/8 340 3-1/8 80 1/4 6 2 51 2-1/4 57 dimensions fuse catalog number ampere 250v 600v rating 1 pole 3 pole 1 pole 3 pole 0-30 20306 20308 60306 60308 31-60 20606 20608 60606 60608 61-100 21036 21038 61036 61038 101-200 22001 22003 62001 62003 201-400 24001 24003 64001 64003 401-600 2631 2633 6631 6633 recommended fuse blocks with box connectors for one-time class k-5 fuses a variety of pole configurations and termination provisions is available. refer to the fuse block section of this catalog for details. 61-600a 0-60a * in canada b
maximum instantaneous peak let-thru amperes available current in rms symmetrical amperes peak let-thru current data ?ot, otn & ots30 to 600, 250 and 600 volts ac b 32 general purpose / class k-5 fuses ot/otn/ots one-time time in seconds current in amperes current in amperes time in seconds melting time ?current data, 250v fuses ot30 to 600; otn 30, 60 ots30 to 600 melting time ?current data, 600v fuses
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