General Purpose US US Fuses General Purpose Fuses American Power Fuses One-Time OT, OTN, OTS (Class K-5) 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 "P," low melting-point, non-time delay fuses. Features /Benefits Highlights * Easy to read imprint label for quick recognition and replacement * Low cost for high protection value * Versatile * Lowest cost protection for circuits serving non-inductive loads Ratings Applications OT AC: 1 to 600A 250VAC, 50kA I.R. DC: 1 to 600A 250VDC, 20kA I.R. OTN (Canada) AC: 15 to 60A 250VAC, 50kA I.R. OTS AC: 1 to 600A 600VAC, 50kA I.R. DC: 1 to 600A 300VDC, 20kA I.R. * * * * Feeders Branch Circuits Resistive Heating Residential and Small Commercial Installations Approvals * UL Listed to Standard 248-9 * CSA Certified toStandard C22.2 No. 248.9* * DC Tested to UL Standard 198L * The Canadian Electrical Code requires these fuses in ratings 15 through 60A to be of the low melting point design use OTN 15-60. GPUS57 12/04 General Purpose General Purpose US Fuses US Fuses American Power Fuses One-Time OT, OTN, OTS (Class K-5) Standard Fuse Ampere Ratings Ampere Rating Catalog Number 250V 600V 1 2 3 4 5 6 7 8 10 12 15 20 25 30 35 40 45 50 60 OT1 OT2 OT3 OT4 OT5 OT6 OT7 OT8 OT10 OT12 OT15 OT20 OT25 OT30 OT35 OT40 OT45 OT50 OT60 OTS1 OTS2 OTS3 OTS4 OTS5 OTS6 OTS7 OTS8 OTS10 OTS12 OTS15 OTS20 OTS25 OTS30 OTS35 OTS40 OTS45 OTS50 OTS60 Reference Number 250V 600V H218277 Y222523 K201374 Q212143 W214701 H216230 Z217763 J218278 X218796 H219312 J219842 P223044 V200831 W201890 J211631 H212665 K213679 A215211 F216734 Ampere Rating D215720 L218280 M219845 Y200834 Y211115 T212146 R223506 W213183 K216232 H216736 X217255 Z218798 L219315 B222526 S223047 N201377 Z201893 M211634 L212668 65 70 75 80 90 100 110 125 150 175 200 225 250 300 350 400 450 500 600 Catalog Number 250V 600V OT65 OT70 OT75 OT80 OT90 OT100 OT110 OT125 OT150 OT175 OT200 OT225 OT250 OT300 OT350 OT400 OT450 OT500 OT600 Reference Number 250V 600V OTS65 OTS70 OTS75 OTS80 OTS90 OTS100 OTS110 OTS125 OTS150 OTS175 OTS200 OTS225 OTS250 OTS300 OTS350 OTS400 OTS450 OTS500 OTS600 V201889 T211111 H211630 P212142 G212664 Y215209 Z215716 F216228 D216732 S217251 X217761 G218276 W218795 G219311 H219841 X222522 N223043 T200830 J201373 A222525 R223046 X200833 M201376 T213181 L213680 S214192 X214702 B215212 C215719 J216231 G216735 W217254 A217764 K218279 Y218797 K219314 L219844 OTN 15 to 60A: consult us. Recommended Fuse Blocks With Box Connectors For One-Time Class K-5 Fuses Fuse Catalog Number Ampere 250 V Rating 1 Pole 3 Pole 0-30 31-60 61-100 101-200 201-400 401-600 0-60A 20306 20606 21036 22001 24001 2631 20308 20608 21038 22003 24003 2633 Fuse Catalog Number Ampere 600 V Rating 1 Pole 3 Pole 0-30 31-60 61-100 101-200 201-400 401-600 61-600A Dimensions Ampere Rating A In. B mm 250V-OT, OTN FUSES 0-30 2 51 31-60 3 76 61-100 5-7/8 149 101-200 7-1/8 181 201-400 8-5/8 219 401-600 10-3/8 264 600V-OTS FUSES 0-30 5 127 31-60 5-1/2 139 61-100 7-7/8 200 101-200 9-5/8 244 201-400 11-5/8 295 401-600 13-3/8 340 12/04 C D E In. mm In. mm In. mm In. mm 9/16 13/16 1-1/16 1-9/16 2-1/16 2-9/16 14 21 27 40 53 66 1/8 3/16 1/4 1/4 3 5 6 6 3/4 1-1/8 1-5/8 2 19 28 41 51 1 1-3/8 1-7/8 2-1/4 25 35 48 57 13/16 1-1/16 1-5/16 1-13/16 2-9/16 3-1/8 21 27 34 46 66 80 1/8 3/16 1/4 1/4 3 5 6 6 3/4 1-1/8 1-5/8 2 19 28 41 51 1 1-3/8 1-7/8 2-1/4 25 35 48 57 GPUS58 60306 60606 61036 62001 64001 6631 60308 60608 61038 62003 64003 6633 Ref.Number 250 V 1 Pole 3 Pole Z212381 N211865 S201105 Y213415 T219046 F214434 F215446 C214431 Q211867 E214433 K215450 Ref.Number 600 V 1 Pole 3 Pole V211871 X211873 K201627 M212393 H218530 Z216475 X213920 Z213922 S211363 H213424 T219575 W217507 A variety of pole configurations and termination provisions is available. Refer to the fuse block section of this catalog for details. General Purpose US US Fuses General Purpose Fuses American Power Fuses One-Time OT, OTN, OTS (Class K-5) CURRENT IN AMPERES MELTING TIME - CURRENT DATA, 250V FUSES OT 30 to 600; OTN 30, 60 TIME IN SECONDS ACURRENT IN AMPERES MELTING TIME - CURRENT DATA, 600V FUSES OTS 30 to 600 TIME IN SECONDS MAXIMUM INSTANTANEOUS PEAK LET-THRU AMPERES Peak Let-Thru Current Data - OT, OTN & OTS 30 to 600, 250 and 600 Volts AC AVAILABLE CURRENT IN RMS SYMMETRICAL AMPERES GPUS59 12/04