FPSR071UL0250Z

PSR030US0550Z_V01 LITTELFUSE | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 20

Technical content

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427221 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Specifications Voltage Rating Ac: 450 V–1300 V Dc: 450 V–1000 V Amperage Rating 40 A–2250 A Interrupting Rating Ac: 100 kA–200 kA Dc: 150 kA Time Constant 10 ms at IR Microswitch Yes Mounting Bolted blade style Material Body: ceramic Contacts: plated copper Approvals UL 248-13 Recognized (File: E71611) cURus (File: E71611) Environmental RoHS Compliant, REACH Operating Temperature -55 °C to +125 °C Storage Temperature Up to +35 °C with relative humidity <65 % Country of Origin Mexico

Description

Littelfuse PSR series high-speed square body fuses are specially designed for protection of power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs, and other solid-state devices that are typically designed into power conversion and power conditioning equipment. Variable frequency drives, inverters, UPS, rectifiers, and soft-starters are examples of typical equipment designed with sensitive power semiconductor devices that cannot withstand any line surge or overcurrent conditions and require high-speed protection. The PSR series with bolted blades is designed and tested to IEC 60269-4. Littelfuse POWR-SPEED® PSR series products offer optimized circuit protection at the extremely fast speed required to protect modern day power conversion devices. Available in bolted blade style termination (typical in North American market) with visual blown fuse indication standard on all fuses and optional micro-switch for external indication. Features/Benefits Best in class dc performance Extremely current limiting Superior cycling capability Visual and optional microswitch fuse blown indication Low watt-loss design Compliance with US and Canadian requirements Fast-acting Class aR performance

Applications

Power conversion devices (UPS, inverter, rectifiers, drives) Dc systems (dc common bus, dc injection braking) Battery protection application (energy storage systems) Electric vehicle charging stations Heaters and power supplies Semiconductor Fuses • Bolted Blade • 40 A—2250 A Ordering Part Number PSR 030 US 0550 Z Termination US = bolted short blade UL = bolted long blade Case Size 30, 31, 32, 33, 70, 71, 72, 73 Amperage Series Packing Quantity X = (1 pc/box) Z = (3 pcs/box) SERIES CASE SIZE TERMINATION AMPERAGE CATALOG NUMBER ORDERING PART NUMBER PSR 030 US 0550 PSR030US0550 PSR030US0550Z Catalog Number Recommended Accessories Microswitch: MS3H1000C (Case Size 30 to 33) MS7H1500C (Case Size 70 to 73) Web Resources Download technical documents: Littelfuse.com/ PSR Note: high-speed fuses are designed for fixed installations. They are not intended for use in moving vehicle applications.

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427222 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY

Electrical Characteristics

RATING (A) VOLTAGE RATING (V) INTERRUPTING RATING MELTING (PRE-ARC) I2T (A2S) TOTAL CLEARING I2T (A2S) AT RATED VOLTAGE WATT LOSS AT 100 % RATED CURRENT (W) AGENCY CERTIFICATION BOLTED SHORT BLADE (US) BOLTED LONG BLADE (UL) AC DC AC DC AC DC cURusIEC* UL PSR030US0040 PSR030UL0040 40 690 700 600 200 kA 150 kA 76 280 260 13 • PSR030US0050 PSR030UL0050 50 690 700 600 200 kA 150 kA 110 598 384 16 • PSR030US0063 PSR030UL0063 63 690 700 600 200 kA 150 kA 176 1023 640 20 • PSR030US0080 PSR030UL0080 80 690 700 600 200 kA 150 kA 304 1728 1252 24 • PSR030US0100 PSR030UL0100 100 690 700 600 200 kA 150 kA 437 2835 1575 28 • PSR030US0125 PSR030UL0125 125 690 700 600 200 kA 150 kA 707 4684 2783 37 • PSR030US0160 PSR030UL0160 160 690 700 600 200 kA 150 kA 1359 9114 5507 40 • PSR030US0200 PSR030UL0200 200 690 700 600 200 kA 150 kA 3012 15169 14700 40 • PSR030US0250 PSR030UL0250 250 690 700 600 200 kA 150 kA 4668 29952 20833 52 • PSR030US0315 PSR030UL0315 315 690 700 600 200 kA 150 kA 7131 61830 31600 64 • PSR030US0350 PSR030UL0350 350 690 700 600 200 kA 150 kA 12007 85320 49273 66 • PSR030US0400 PSR030UL0400 400 690 700 600 200 kA 150 kA 16209 114750 63367 78 • PSR030US0450 PSR030UL0450 450 690 700 600 200 kA 150 kA 23133 160110 93533 80 • PSR030US0500 PSR030UL0500 500 690 700 600 200 kA 150 kA 31429 225180 137333 84 • PSR030US0550 PSR030UL0550 550 690 700 600 200 kA 150 kA 44323 268920 145400 85 • PSR030US0630 PSR030UL0630 630 690 700 550 200 kA 150 kA 57404 480010 267800 91 • PSR031US0200 PSR031UL0200 200 690 700 600 200 kA 150 kA 1965 17334 16188 49 • PSR031US0250 PSR031UL0250 250 690 700 600 200 kA 150 kA 3789 35343 21080 52 • PSR031US0315 PSR031UL0315 315 690 700 600 200 kA 150 kA 6862 59130 30694 63 • PSR031US0350 PSR031UL0350 350 690 700 600 200 kA 150 kA 9523 76140 40996 67 • PSR031US0400 PSR031UL0400 400 690 700 600 200 kA 150 kA 14770 124335 64359 70 • PSR031US0450 PSR031UL0450 450 690 700 600 200 kA 150 kA 22457 178200 97444 70 • PSR031US0500 PSR031UL0500 500 690 700 600 200 kA 150 kA 29751 251505 125935 74 • PSR031US0550 PSR031UL0550 550 690 700 600 200 kA 150 kA 42056 289170 171845 86 • PSR031US0630 PSR031UL0630 630 690 700 600 200 kA 150 kA 73513 507465 276315 87 • PSR031US0700 PSR031UL0700 700 690 700 600 200 kA 150 kA 98187 601425 337260 93 • PSR031US0800 PSR031UL0800 800 690 700 600 200 kA 150 kA 137208 848880 502815 107 • PSR031US0900 PSR031UL0900 900 550 600 550 200 kA 150 kA 155163 945100 631820 126 • PSR032US0400 PSR032UL0400 400 690 700 600 200 kA 150 kA 11104 79650 44533 87 • PSR032US0450 PSR032UL0450 450 690 700 600 200 kA 150 kA 15535 116100 65463 88 • PSR032US0500 PSR032UL0500 500 690 700 600 200 kA 150 kA 21573 161460 88277 94 • PSR032US0550 PSR032UL0550 550 690 700 600 200 kA 150 kA 26327 177660 107960 106 • PSR032US0630 PSR032UL0630 630 690 700 600 200 kA 150 kA 34790 234900 156963 114 • PSR032US0700 PSR032UL0700 700 690 700 600 200 kA 150 kA 51191 291870 209287 127 • PSR032US0800 PSR032UL0800 800 690 700 600 200 kA 150 kA 60125 472770 249000 152 • PSR032US0900 PSR032UL0900 900 690 700 600 200 kA 150 kA 107785 764100 404000 145 • PSR032US1000 PSR032UL1000 1000 690 700 600 200 kA 150 kA 190102 933120 672333 149 • PSR032US1100 PSR032UL1100 1100 690 700 600 200 kA 150 kA 225379 1247400 744000 161 • PSR032US1250 PSR032UL1250 1250 550 600 550** 200 kA 150 kA 336661 1114994 1197000 166 • PSR032US1400 PSR032UL1400 1400 450 500 450 200 kA 150 kA 551749 1611639 1865400 184 • PSR032US1500 PSR032UL1500 1500 450 500 450 200 kA 150 kA 673360 2045907 1735500 192 • PSR033US0450 PSR033UL0450 450 690 700 600 200 kA 150 kA 13600 106380 58947 107 • PSR033US0500 PSR033UL0500 500 690 700 600 200 kA 150 kA 16434 140400 77846 107 • PSR033US0550 PSR033UL0550 550 690 700 600 200 kA 150 kA 23314 187650 100461 111 • PSR033US0630 PSR033UL0630 630 690 700 600 200 kA 150 kA 38727 285930 142437 120 • PSR033US0700 PSR033UL0700 700 690 700 600 200 kA 150 kA 56763 392580 209863 116 • PSR033US0800 PSR033UL0800 800 690 700 600 200 kA 150 kA 84691 575505 348500 122 • PSR033US0900 PSR033UL0900 900 690 700 600 200 kA 150 kA 122619 740340 451177 138 • PSR033US1000 PSR033UL1000 1000 690 700 600 200 kA 150 kA 222350 1170450 787750 138 • PSR033US1100 PSR033UL1100 1100 690 700 600 200 kA 150 kA 310824 1568700 821400 138 • PSR033US1250 PSR033UL1250 1250 690 700 500 200 kA 150 kA 476902 2403000 1674333 145 • PSR033US1400 PSR033UL1400 1400 690 700 500 200 kA 150 kA 583552 2920050 1979750 173 • PSR033US1500 PSR033UL1500 1500 600 650 500 200 kA 150 kA 674538 2433200 1996733 182 • PSR033US1600 PSR033UL1600 1600 600 650 500 200 kA 150 kA 779948 2942800 2301633 208 • PSR033US1800 PSR033UL1800 1800 600 650 500 200 kA 150 kA 952196 3785040 2724180 260 • PSR033US2000 PSR033UL2000 2000 550 600 480 200 kA 150 kA 1234315 4131600 3755180 264 • PSR033US2250 PSR033UL2250 2250 500 550 450 200 kA 150 kA 1236000 4459651 3859500 349 • * Electrical compliance to IEC 60269-4 ** Littelfuse self-certified

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427223 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Electrical Characteristics (cont.) CASE SIZE CATALOG NUMBER AMPERE RATING (A) VOLTAGE RATING (V) INTERRUPTING RATING MELTING (PRE-ARC) I2T (A2S) TOTAL CLEARING I2T (A2S) AT RATED VOLTAGE WATT LOSS AT 100 % RATED CURRENT (W) AGENCY CERTIFICATION BOLTED LONG BLADE (UL) AC DC AC DC AC DC cURus IEC* UL PSR070UL0050 50 1250 1300 1000 100 kA 150 kA 177 2050 400 21 • PSR070UL0063 63 1250 1300 1000 100 kA 150 kA 273 3399 900 24 • PSR070UL0080 80 1250 1300 1000 100 kA 150 kA 583 6732 2200 25 • PSR070UL0100 100 1250 1300 1000 100 kA 150 kA 974 10996 3750 30 • PSR070UL0125 125 1250 1300 1000 100 kA 150 kA 1352 13011 5150 44 • PSR070UL0160 160 1250 1300 1000 100 kA 150 kA 2377 25662 8950 53 • PSR070UL0200 200 1250 1300 1000 100 kA 150 kA 4177 39087 17267 62 • PSR070UL0250 250 1250 1300 1000 100 kA 150 kA 8629 89790 36750 73 • PSR070UL0280 280 1250 1300 1000 100 kA 150 kA 11844 113201 46750 77 • PSR070UL0315 315 1250 1300 1000 100 kA 150 kA 18162 142051 66833 80 • PSR070UL0350 350 1250 1300 1000 100 kA 150 kA 22963 215230 95410 76 • PSR070UL0400 400 1100 1200 900 100 kA 150 kA 37103 283480 154320 78 • PSR071UL0160 160 1250 1300 1000 100 kA 150 kA 2756 24600 8800 45 • PSR071UL0200 200 1250 1300 1000 100 kA 150 kA 4918 50307 19050 52 • PSR071UL0250 250 1250 1300 1000 100 kA 150 kA 10592 104427 43100 55 • PSR071UL0280 280 1250 1300 1000 100 kA 150 kA 13763 131897 54150 58 • PSR071UL0315 315 1250 1300 1000 100 kA 150 kA 20882 200244 67450 59 • PSR071UL0350 350 1250 1300 1000 100 kA 150 kA 23301 225500 102500 70 • PSR071UL0400 400 1250 1300 1000 100 kA 150 kA 43211 374986 185000 76 • PSR071UL0450 450 1250 1300 1000 100 kA 150 kA 55915 452394 241333 88 • PSR071UL0500 500 1100 1200 900 100 kA 150 kA 75315 468845 253960 93 • PSR071UL0550 550 1100 1200 900 100 kA 150 kA 87328 693507 332600 90 • PSR071UL0630 630 1000 1100 900 100 kA 150 kA 131240 790862 426550 103 • PSR072UL0250 250 1250 1300 1000 100 kA 150 kA 7737 72789 28567 64 • PSR072UL0280 280 1250 1300 1000 100 kA 150 kA 10915 124538 46897 62 • PSR072UL0315 315 1250 1300 1000 100 kA 150 kA 16187 145140 58867 69 • PSR072UL0350 350 1250 1300 1000 100 kA 150 kA 18727 160447 69633 81 • PSR072UL0400 400 1250 1300 1000 100 kA 150 kA 27112 243540 108000 93 • PSR072UL0450 450 1250 1300 1000 100 kA 150 kA 35927 406413 159133 107 • PSR072UL0500 500 1250 1300 1000 100 kA 150 kA 50398 425375 216333 115 • PSR072UL0550 550 1250 1300 1000 100 kA 150 kA 73858 539833 271333 115 • PSR072UL0630 630 1250 1300 1000 100 kA 150 kA 126126 942180 436000 119 • PSR072UL0700 700 1100 1200 900 100 kA 150 kA 228761 1123694 715180 89 • PSR072UL0800 800 1100 1200 900 100 kA 150 kA 230695 1432388 911650 129 • PSR072UL0900 900 1000 1100 900 100 kA 150 kA 376641 1309993 1030400 131 • PSR072UL1000 1000 850 900 800 100 kA 150 kA 455955 1772548 1361500 156 • PSR073UL0315 315 1250 1300 1000 100 kA 150 kA 10245 106600 38650 100 • PSR073UL0350 350 1250 1300 1000 100 kA 150 kA 13586 159627 57467 100 • PSR073UL0400 400 1250 1300 1000 100 kA 150 kA 19797 211273 86800 124 • PSR073UL0450 450 1250 1300 1000 100 kA 150 kA 29834 279073 114333 122 • PSR073UL0500 500 1250 1300 1000 100 kA 150 kA 42751 416437 184500 121 • PSR073UL0550 550 1250 1300 1000 100 kA 150 kA 55513 491713 224500 130 • PSR073UL0630 630 1250 1300 1000 100 kA 150 kA 94649 804338 377500 136 • PSR073UL0700 700 1250 1300 1000 100 kA 150 kA 158097 1170960 575667 135 • PSR073UL0800 800 1250 1300 1000 100 kA 150 kA 234943 1769880 733460 128 • PSR073UL0900 900 950 1050 800 100 kA 150 kA 317743 2280547 901779 156 • PSR073UL1000 1000 950 1050 800 100 kA 150 kA 476221 3910801 1546418 143 • PSR073UL1100 1100 950 1050 800** 100 kA 150 kA 570870 2736600 1699000 165 • PSR073UL1250 1250 900 1000 - 100 kA - 993924 3091160 - 197 • PSR073UL1400 1400 900 1000 - 100 kA - 1168091 3627820 - 249 • * Electrical compliance to IEC 60269-4 ** Littelfuse self-certified

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427224 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY

Ordering Information

BOLTED SHORT BLADE (US) BOLTED LONG BLADE (UL) BOX QUANTITYCATALOG NUMBER ORDERING PART NUMBER UPC CATALOG NUMBER ORDERING PART NUMBER UPC PSR030US0040 PSR030US0040Z 07945825195 PSR030UL0040 PSR030UL0040Z 07945825246 3 pcs/box PSR030US0050 PSR030US0050Z 07945825196 PSR030UL0050 PSR030UL0050Z 07945825247 3 pcs/box PSR030US0063 PSR030US0063Z 07945825197 PSR030UL0063 PSR030UL0063Z 07945825248 3 pcs/box PSR030US0080 PSR030US0080Z 07945825198 PSR030UL0080 PSR030UL0080Z 07945825249 3 pcs/box PSR030US0100 PSR030US0100Z 07945825199 PSR030UL0100 PSR030UL0100Z 07945825250 3 pcs/box PSR030US0125 PSR030US0125Z 07945825200 PSR030UL0125 PSR030UL0125Z 07945825251 3 pcs/box PSR030US0160 PSR030US0160Z 07945825201 PSR030UL0160 PSR030UL0160Z 07945825252 3 pcs/box PSR030US0200 PSR030US0200Z 07945825202 PSR030UL0200 PSR030UL0200Z 07945825253 3 pcs/box PSR030US0250 PSR030US0250Z 07945825203 PSR030UL0250 PSR030UL0250Z 07945825254 3 pcs/box PSR030US0315 PSR030US0315Z 07945825204 PSR030UL0315 PSR030UL0315Z 07945825255 3 pcs/box PSR030US0350 PSR030US0350Z 07945825205 PSR030UL0350 PSR030UL0350Z 07945825256 3 pcs/box PSR030US0400 PSR030US0400Z 07945825206 PSR030UL0400 PSR030UL0400Z 07945825257 3 pcs/box PSR030US0450 PSR030US0450Z 07945825207 PSR030UL0450 PSR030UL0450Z 07945825258 3 pcs/box PSR030US0500 PSR030US0500Z 07945825208 PSR030UL0500 PSR030UL0500Z 07945825259 3 pcs/box PSR030US0550 PSR030US0550Z 07945825209 PSR030UL0550 PSR030UL0550Z 07945825260 3 pcs/box PSR030US0630 PSR030US0630Z 07945828549 PSR030UL0630 PSR030UL0630Z 07945827828 3 pcs/box PSR031US0200 PSR031US0200Z 07945825210 PSR031UL0200 PSR031UL0200Z 07945825261 3 pcs/box PSR031US0250 PSR031US0250Z 07945825211 PSR031UL0250 PSR031UL0250Z 07945825262 3 pcs/box PSR031US0315 PSR031US0315Z 07945825212 PSR031UL0315 PSR031UL0315Z 07945825263 3 pcs/box PSR031US0350 PSR031US0350Z 07945825213 PSR031UL0350 PSR031UL0350Z 07945825264 3 pcs/box PSR031US0400 PSR031US0400Z 07945825214 PSR031UL0400 PSR031UL0400Z 07945825265 3 pcs/box PSR031US0450 PSR031US0450Z 07945825215 PSR031UL0450 PSR031UL0450Z 07945825266 3 pcs/box PSR031US0500 PSR031US0500Z 07945825216 PSR031UL0500 PSR031UL0500Z 07945825267 3 pcs/box PSR031US0550 PSR031US0550Z 07945825217 PSR031UL0550 PSR031UL0550Z 07945825268 3 pcs/box PSR031US0630 PSR031US0630Z 07945825218 PSR031UL0630 PSR031UL0630Z 07945825269 3 pcs/box PSR031US0700 PSR031US0700Z 07945825219 PSR031UL0700 PSR031UL0700Z 07945825270 3 pcs/box PSR031US0800 PSR031US0800Z 07945825220 PSR031UL0800 PSR031UL0800Z 07945825271 3 pcs/box PSR031US0900 PSR031US0900Z 07945828550 PSR031UL0900 PSR031UL0900Z 07945827829 3 pcs/box PSR032US0400 PSR032US0400X 07945825221 PSR032UL0400 PSR032UL0400X 07945825272 1 pc/box PSR032US0450 PSR032US0450X 07945825222 PSR032UL0450 PSR032UL0450X 07945825273 1 pc/box PSR032US0500 PSR032US0500X 07945825223 PSR032UL0500 PSR032UL0500X 07945825274 1 pc/box PSR032US0550 PSR032US0550X 07945825224 PSR032UL0550 PSR032UL0550X 07945825275 1 pc/box PSR032US0630 PSR032US0630X 07945825225 PSR032UL0630 PSR032UL0630X 07945825276 1 pc/box PSR032US0700 PSR032US0700X 07945825226 PSR032UL0700 PSR032UL0700X 07945825277 1 pc/box PSR032US0800 PSR032US0800X 07945825227 PSR032UL0800 PSR032UL0800X 07945825278 1 pc/box PSR032US0900 PSR032US0900X 07945825228 PSR032UL0900 PSR032UL0900X 07945825279 1 pc/box PSR032US1000 PSR032US1000X 07945825229 PSR032UL1000 PSR032UL1000X 07945825280 1 pc/box PSR032US1100 PSR032US1100X 07945825230 PSR032UL1100 PSR032UL1100X 07945825281 1 pc/box PSR032US1250 PSR032US1250X 07945828551 PSR032UL1250 PSR032UL1250X 07945827830 1 pc/box PSR032US1400 PSR032US1400X 07945828552 PSR032UL1400 PSR032UL1400X 07945828531 1 pc/box PSR032US1500 PSR032US1500X 07945828553 PSR032UL1500 PSR032UL1500X 07945828532 1 pc/box PSR033US0450 PSR033US0450X 07945825231 PSR033UL0450 PSR033UL0450X 07945825282 1 pc/box PSR033US0500 PSR033US0500X 07945825232 PSR033UL0500 PSR033UL0500X 07945825283 1 pc/box PSR033US0550 PSR033US0550X 07945825233 PSR033UL0550 PSR033UL0550X 07945825284 1 pc/box PSR033US0630 PSR033US0630X 07945825234 PSR033UL0630 PSR033UL0630X 07945825285 1 pc/box PSR033US0700 PSR033US0700X 07945825235 PSR033UL0700 PSR033UL0700X 07945825286 1 pc/box PSR033US0800 PSR033US0800X 07945825236 PSR033UL0800 PSR033UL0800X 07945825287 1 pc/box PSR033US0900 PSR033US0900X 07945825237 PSR033UL0900 PSR033UL0900X 07945825288 1 pc/box PSR033US1000 PSR033US1000X 07945825238 PSR033UL1000 PSR033UL1000X 07945825289 1 pc/box PSR033US1100 PSR033US1100X 07945825239 PSR033UL1100 PSR033UL1100X 07945825290 1 pc/box PSR033US1250 PSR033US1250X 07945825240 PSR033UL1250 PSR033UL1250X 07945825291 1 pc/box PSR033US1400 PSR033US1400X 07945825241 PSR033UL1400 PSR033UL1400X 07945825292 1 pc/box PSR033US1500 PSR033US1500X 07945825242 PSR033UL1500 PSR033UL1500X 07945825293 1 pc/box PSR033US1600 PSR033US1600X 07945825243 PSR033UL1600 PSR033UL1600X 07945825294 1 pc/box PSR033US1800 PSR033US1800X 07945825244 PSR033UL1800 PSR033UL1800X 07945825295 1 pc/box PSR033US2000 PSR033US2000X 07945825245 PSR033UL2000 PSR033UL2000X 07945825296 1 pc/box PSR033US2250 PSR033US2250X 07945828554 PSR033UL2250 PSR033UL2250X 07945828533 1 pc/box

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427225 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Ordering Information (cont.) CASE SIZE BOLTED LONG BLADE (UL) BOX QUANTITY CATALOG NUMBER ORDERING PART NUMBER UPC PSR070UL0050 PSR070UL0050Z 07945825297 3 pcs/box PSR070UL0063 PSR070UL0063Z 07945825298 3 pcs/box PSR070UL0080 PSR070UL0080Z 07945825299 3 pcs/box PSR070UL0100 PSR070UL0100Z 07945825300 3 pcs/box PSR070UL0125 PSR070UL0125Z 07945825301 3 pcs/box PSR070UL0160 PSR070UL0160Z 07945825302 3 pcs/box PSR070UL0200 PSR070UL0200Z 07945825303 3 pcs/box PSR070UL0250 PSR070UL0250Z 07945825304 3 pcs/box PSR070UL0280 PSR070UL0280Z 07945825305 3 pcs/box PSR070UL0315 PSR070UL0315Z 07945825306 3 pcs/box PSR070UL0350 PSR070UL0350Z 07945828534 3 pcs/box PSR070UL0400 PSR070UL0400Z 07945828535 3 pcs/box PSR071UL0160 PSR071UL0160Z 07945825307 3 pcs/box PSR071UL0200 PSR071UL0200Z 07945825308 3 pcs/box PSR071UL0250 fPSR071UL0250Z 07945825309 3 pcs/box PSR071UL0280 PSR071UL0280Z 07945825310 3 pcs/box PSR071UL0315 PSR071UL0315Z 07945825311 3 pcs/box PSR071UL0350 PSR071UL0350Z 07945825312 3 pcs/box PSR071UL0400 PSR071UL0400Z 07945825313 3 pcs/box PSR071UL0450 PSR071UL0450Z 07945825314 3 pcs/box PSR071UL0500 PSR071UL0500Z 07945828536 3 pcs/box PSR071UL0550 PSR071UL0550Z 07945828537 3 pcs/box PSR071UL0630 PSR071UL0630Z 07945828538 3 pcs/box PSR072UL0250 PSR072UL0250X 07945825315 1 pc/box PSR072UL0280 PSR072UL0280X 07945825316 1 pc/box PSR072UL0315 PSR072UL0315X 07945825317 1 pc/box PSR072UL0350 PSR072UL0350X 07945825318 1 pc/box PSR072UL0400 PSR072UL0400X 07945825319 1 pc/box PSR072UL0450 PSR072UL0450X 07945825320 1 pc/box PSR072UL0500 PSR072UL0500X 07945825321 1 pc/box PSR072UL0550 PSR072UL0550X 07945825322 1 pc/box PSR072UL0630 PSR072UL0630X 07945825323 1 pc/box PSR072UL0700 PSR072UL0700X 07945828539 1 pc/box PSR072UL0800 PSR072UL0800X 07945828540 1 pc/box PSR072UL0900 PSR072UL0900X 07945828541 1 pc/box PSR072UL1000 PSR072UL1000X 07945828542 1 pc/box PSR073UL0315 PSR073UL0315X 07945825324 1 pc/box PSR073UL0350 PSR073UL0350X 07945825325 1 pc/box PSR073UL0400 PSR073UL0400X 07945825326 1 pc/box PSR073UL0450 PSR073UL0450X 07945825327 1 pc/box PSR073UL0500 PSR073UL0500X 07945825328 1 pc/box PSR073UL0550 PSR073UL0550X 07945825329 1 pc/box PSR073UL0630 PSR073UL0630X 07945825330 1 pc/box PSR073UL0700 PSR073UL0700X 07945825331 1 pc/box PSR073UL0800 PSR073UL0800X 07945828543 1 pc/box PSR073UL0900 PSR073UL0900X 07945828544 1 pc/box PSR073UL1000 PSR073UL1000X 07945828545 1 pc/box PSR073UL1100 PSR073UL1100X 07945828546 1 pc/box PSR073UL1250 PSR073UL1250X 07945828547 1 pc/box PSR073UL1400 PSR073UL1400X 07945828548 1 pc/box

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427226 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Dimensions (US and UL) CHICAGO, ILLINOIS 60631 3RD ANGLE PROJECTION

2 PSR BLADE CUSTOMER OUTLINE

® REVISION DRWG NO. TITLE C DRW DATE GRAMS/PIECE FINISH GOOD WT myork 11/6/2018 MATL SPEC FINISH UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994 DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALUE MUST BE WITHIN THE DIMENSIONAL LIMITATIONS SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. CPK CP SHEET 2 OF 2 SCALE PSR SERIES OUTLINE NTS H EC B D A F I J - US BLADE DIMENSIONS MM (IN) CASE SIZE MOUNTING STYLE A B C D E F G H I RECOMMENDED FASTENER G 1/4" QC TERMINAL VISUAL INDICATOR M4x0.7 THREAD 10.00 (.394) STUD LENGTH CHICAGO, ILLINOIS 60631 3RD ANGLE PROJECTION ® REVISION DRWG NO. TITLE C DRW DATE GRAMS/PIECE FINISH GOOD WT myork 11/6/2018 MATL SPEC FINISH UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994 DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALUE MUST BE WITHIN THE DIMENSIONAL LIMITATIONS SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. CPK CP SHEET 2 OF 2 SCALE PSR SERIES OUTLINE NTS H EC B D A F I J - US BLADE DIMENSIONS MM (IN) CASE SIZE MOUNTING STYLE A B C D E F G H I RECOMMENDED FASTENER G 1/4" QC TERMINAL VISUAL INDICATOR M4x0.7 THREAD 10.00 (.394) STUD LENGTH CHICAGO, ILLINOIS 60631 3RD ANGLE PROJECTION ® REVISION DRWG NO. TITLE C DRW DATE GRAMS/PIECE FINISH GOOD WT myork 11/6/2018 MATL SPEC FINISH UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994 DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALUE MUST BE WITHIN THE DIMENSIONAL LIMITATIONS SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. CPK CP SHEET 2 OF 2 SCALE PSR SERIES OUTLINE NTS H EC B D A F I J - US BLADE DIMENSIONS MM (IN) CASE SIZE MOUNTING STYLE A B C D E F G H I RECOMMENDED FASTENER G 1/4" QC TERMINAL VISUAL INDICATOR M4x0.7 THREAD 10.00 (.394) STUD LENGTH CHICAGO, ILLINOIS 60631 3RD ANGLE PROJECTION ® REVISION DRWG NO. TITLE C DRW DATE GRAMS/PIECE FINISH GOOD WT myork 11/6/2018 MATL SPEC FINISH UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994 DENOTES CRITICAL CHARACTERISTICS. DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT AND TRACKING TO BE DEFINED IN LITTELFUSE INSPECTION INSTRUCTIONS. DENOTES CP DIMENSIONS, -MINIMUM CP VALUE MUST BE WITHIN THE DIMENSIONAL LIMITATIONS SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. CPK CP SHEET 2 OF 2 SCALE PSR SERIES OUTLINE NTS H EC B D A F I J - US BLADE DIMENSIONS MM (IN) CASE SIZE MOUNTING STYLE A B C D E F G H I RECOMMENDED FASTENER G 1/4" QC TERMINAL VISUAL INDICATOR M4x0.7 THREAD 10.00 (.394) STUD LENGTH DIMENSIONS MM (IN) CASE SIZE MOUNTING STYLE A B C D E F G H I J RECOMMENDED FASTENER TIGHTENING TORQUE (REFERENCE ONLY) Short [US] 127.2 (5.01) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.7 (1.88) 76.4 (3.01) 6.0 (0.24) 69.5 (2.74) 106.3 (4.19) 10 mm (3/8) 26 Nm Long [UL] 148.0 (5.83) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 47.7 (1.88) 76.4 (3.01) 6.0 (0.24) 88.5 (3.48) 125.8 (4.95) 10 mm (3/8) 26 Nm Short [US] 133.2 (5.24) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 49.2 (1.94) 84.9 (3.34) 6.0 (0.24) 68.8 (2.71) 108.3 (4.26) 12 mm (1/2) 64 Nm Long [UL] 153.2 (6.03) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 49.2 (1.94) 84.9 (3.34) 6.0 (0.24) 92.3 (3.63) 128.3 (5.05) 12 mm (1/2) 64 Nm Short [US] 133.2 (5.24) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 49.2 (1.94) 93.4 (3.68) 6.0 (0.24) 68.8 (2.71) 108.3 (4.26) 12 mm (1/2) 64 Nm Long [UL] 153.2 (6.03) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 49.2 (1.94) 93.4 (3.68) 6.0 (0.24) 92.3 (3.63) 128.3 (5.05) 12 mm (1/2) 64 Nm Short [US] 135.4 (5.33) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 50.2 (1.98) 106.9 (4.21) 6.0 (0.24) 75.8 (2.98) 107.3 (4.22) 14 mm (9/16) 92 Nm Long [UL] 155.2 (6.11) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 50.2 (1.98) 106.9 (4.21) 6.0 (0.24) 94.8 (3.73) 126.3 (4.97) 14 mm (9/16) 92 Nm 70 Long [UL] 151.2 (5.95) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 20.0 (0.79) 71.7 (2.82) 76.4 (3.01) 6.0 (0.24) 92.8 (3.65) 130.3 (5.13) 10 mm (3/8) 26 Nm 71 Long [UL] 157.0 (6.18) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 25.0 (0.98) 73.2 (2.88) 84.9 (3.34) 6.0 (0.24) 92.8 (3.65) 132.3 (5.21) 12 mm (1/2) 64 Nm 72 Long [UL] 157.2 (6.19) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 25.0 (0.98) 73.2 (2.88) 93.4 (3.68) 6.0 (0.24) 92.8 (3.65) 132.3 (5.21) 12 mm (1/2) 64 Nm 73 Long [UL] 159.4 (6.28) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 36.0 (1.41) 74.2 (2.92) 106.9 (4.21) 6.0 (0.24) 99.8 (3.93) 131.3 (5.17) 14 mm (9/16) 92 Nm

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427227 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (30 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 - 125A BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA

2 OF 2

C PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 160A - 200A - 250A - 315A - 350A - 40A - 50A - 63A - 80A - 100A - 400A - 450A - 500A - 550A - 630A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427228 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (31 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 - 450A BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA B PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 500A - 550A - 630A - 700A - 800A - 200A - 250A - 315A - 350A - 400A - 900A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 0427229 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (32 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 - 700A BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA C PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 800A - 900A - 1000A - 1100A - 400A - 450A - 500A - 550A - 630A - 1250A - 1400A - 1500A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272210 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (33 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1000000 900000 800000 700000 600000 500000 400000 300000 200000 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 1000000 900000 800000 700000 600000 500000 400000 300000 200000 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 - 800A BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA C PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 900A - 1000A - 1100A - 1250A - 1400A - 450A - 450A - 500A - 630A - 700A - 1500A - 1600A - 1800A - 2000A - 2250A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272211 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (70 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA B PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 315A - 280A - 250A - 200A - 160A - 125A - 100A - 80A - 63A - 50A - 400A - 350A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272212 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (71 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 - 350A BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA D PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 400A - 450A - 160A - 200A - 250A - 280A - 315A - 500A - 550A - 630A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272213 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (72 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA

2 OF 3

D PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 630A - 550A - 500A - 450A - 400A - 350A - 315A - 280A - 250A - 900A - 800A - 700A - 1000A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272214 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (73 Case Size) - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA B PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 700A - 630A - 550A - 500A - 450A - 400A - 350A - 315A - 1400A - 1250A - 1100A - 1000A - 900A - 800A * Dc minimum breaking capacity = 9 x In

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272215 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY - DATA GENERATED IN EXCEL - 100 1,000 10,000 100,000 100 1,000 10,000 100,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR30PSR30 40A-630A 630A - 550A - 500A - 450A - 400A - 350A - 315A - 250A - 200A - 160A - 125A - 100A - 80A - 63A - 50A - 40A - A B Peak Let-Thru Curve (30 Case Size) - DATA GENERATED IN EXCEL - 100 1,000 10,000 100,000 200 2,000 20,000 200,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR31PSR31 200A-900A 900A - 800A - 700A - 630A - 550A - 500A - 450A - 400A - 350A - 315A - 250A - 200A - A B Peak Let-Thru Curve (31 Case Size)

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272216 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY - DATA GENERATED IN EXCEL - 1,000 10,000 100,000 200 2,000 20,000 200,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR33PSR33 450A - 2250A 2250A - 2000A - 1800A - 1600A - 1500A - 1400A - 1250A - 1100A - A B 1000A - 900A - 800A - 700A - 630A - 550A - 500A - 450A - Peak Let-Thru Curve (33 Case Size) - DATA GENERATED IN EXCEL - 2,000 20,000 200,000 200 2,000 20,000 200,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR32PSR032 400A-1500A 1500A - 1400A - 1250A - 1100A - 1000A - 900A - 800A - 700A - 630A - 550A - 500A - 450A - 400A - A B Peak Let-Thru Curve (32 Case Size)

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272217 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY - DATA GENERATED IN EXCEL - 100 1,000 10,000 100,000 100 1,000 10,000 100,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR70 (B)PSR070 50A - 400A 400A - 350A - 315A - 280A - 250A - 200A - 160A - 125A - 100A - 80A - 63A - 50A - A B - DATA GENERATED IN EXCEL - 1,000 10,000 100,000 100 1,000 10,000 100,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR71PSR071 160A - 630A 630A - 550A - 500A - 450A - 400A - 350A - 315A - 280A - 250A - 200A - 160A - A B Peak Let-Thru Curve (70 Case Size) Peak Let-Thru Curve (71 Case Size)

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272218 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY - DATA GENERATED IN EXCEL - 1,000 10,000 100,000 1,000 10,000 100,000 PEAK LET- THRU IN AMPERES AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR72PSR072 250A - 1000A 630A - 550A - 500A - 450A - 400A - 350A - 315A - 280A - 250A - A B 1000A - 900A - 800A - 700A - - THIS DATA IS GENERATED IN EXCEL - 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 1009080 1098 10.90.8 0.7 0.6 0.5 0.4 0.3 0.2 0.10.090.08 0.07 0.06 0.05 0.04 0.03 0.02 0.010.0090.008 0.007 0.006 0.005 0.004 0.003 0.002 0.0010.00090.0008 0.0007 0.0006 0.0005 0.0004 0.0003 0.0002 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TIME CURRENT CHARACTERISTIC CURVES LITTELFUSE, INC. CHICAGO, IL. USA B PROSPECTIVE R.M.S CURRENT IN AMPERE VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS - 700A - 630A - 550A - 500A - 450A - 400A - 350A - 315A - 1400A - 1250A - 1100A - 1000A - 900A - 800A Peak Let-Thru Curve (72 Case Size) Peak Let-Thru Curve (73 Case Size)

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272219 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY T otal Clearing I2t Correction Factor Curve (30, 31, 32 and 33 Case Sizes) T otal Clearing I2t Correction Factor Curve (70, 71, 72 and 73 Case Sizes) - THIS DATA IS GENERATED IN EXCEL - 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 800 700 600 500 400 300 200 100 800 700 600 500 400 300 200 100 BASIS FOR DATA: TEST VOLTAGE: 100V - 690V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET I2T VARIATION CURVES LITTELFUSE, INC. CHICAGO, IL. USA B OPERATING VOTLAGE IN VOLTS TOTAL CLEARING I2t CORRECTION FACTOR - 450 V - 500 V - 550 V - 600 V - 690 V - THIS DATA IS GENERATED IN EXCEL - 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 1.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 1400 1200 1000 800 600 400 200 1400 1200 1000 800 600 400 200 BASIS FOR DATA: TEST VOLTAGE: 200V - 1250V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET I2T VARIATION CURVES LITTELFUSE, INC. CHICAGO, IL. USA

3 OF 3

11/15/2021: B OPERATING VOLTAGE IN VOLTS TOTAL CLEARING I2t CORRECTION FACTOR - 850 V - 900 V - 1000 V - 1100 V - 1250 V - THIS DATA IS GENERATED IN EXCEL - 600 700 800 900 1000 1100 1200 1300 1400 100 200 300 400 500 600 700 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET ARC VOLTAGE LITTELFUSE, INC. CHICAGO, IL. USA LLL 01/26/2015 A OPERATING VOLTAGE IN VOLTS PEAK ARC VOLTAGE IN VOLT BASIS FOR DATA: TEST VOLTAGE: 100V-690V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET MAX ARC VOLTAGE VARIATION CURVE LITTELFUSE, INC. CHICAGO, IL. USA LLL 03/23/2017 A

• THIS DATA IS GENERATED IN EXCEL - 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 500 600 700 800 900 1000 1100 1200 1300 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET ARC VOLTAGE LITTELFUSE, INC. CHICAGO, IL. USA LLL 01/26/2015 A

OPERATING VOLTAGE IN VOLTS PEAK ARC VOLTAGE IN VOLT BASIS FOR DATA: TEST VOLTAGE: 500V-1300V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET MAX ARC VOLTAGE VARIATION CURVE LITTELFUSE, INC. CHICAGO, IL. USA LLL 01/23/2015 A (30, 31, 32 and 33 Case Sizes) Peak Arc Voltage Curve (70, 71, 72 and 73 Case Sizes)

Littelfuse.com/PSR © 2022 Littelfuse, Inc. Rev: 04272220 of 20 POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY - THIS DATA IS GENERATED IN EXCEL - BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET TEMPERATURE RE-RATING CURVE LITTELFUSE, INC. CHICAGO, IL. USA LLL 04/04/2017 A 20% 140°C 284°F 20% 120°C 248°F 80°C 176°F 40°C 104°F -20°C -4°F -40°C -40°F -60°C -76°F 40% 0°C 32°F 20°C 68°F 100°C 212°F 60°C 140°F PERCENT OF UPRATING AMBIENT TEMPERATURE 10% 30% 10% 30% 50% T emperature Derating Curve (temperature of air immediately surrounding fuse) - THIS DATA IS GENERATED IN EXCEL - 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 100 100 BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET I2T CORRECTION FACTOR LITTELFUSE, INC. CHICAGO, IL. USA LLL 01/26/2015 A PERCENT OF RATED CURRENT(%) WATTS LOSS CORRECTION FACTOR BASIS FOR DATA: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: DATE: REVISION: DRAWING NO.: SHEET DERATING CURVE - WATTS LOSS CORRECTION LITTELFUSE, INC. CHICAGO, IL. USA LLL 03/20/2017 A Watts Loss Correction Factor Curve Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for