POWR-SPEED Fuse PSR SERIES HIGH-SPEED SQUARE BODY

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Semiconductor Fuses • Flush End • 40 A–2250 A S Specifications Voltage Range Ac: 450 V–1300 V Dc: 450 V–1000 V Amperage Range 40 A–2250 A Interrupting Range Ac: 100 kA–200 kA Dc: 150 kA Time Constant 10 ms at IR Microswitch Yes Mounting Flush-end style Material Body: ceramic Contacts: plated brass Approvals UL 248-13 Recognized (File: E71611) cURus (File: E71611) Description CCC* Applicable Standards UL248-13, IEC 60269-4 (Class aR) Littelfuse PSR series high-speed square body fuses are Environmental RoHS Compliant, REACH specially designed for protection of power semiconductor Operating Temperature -55 °C to +125 °C devices such as diodes, triacs, IGBTs, SCRs, MOSFETs, Storage Temperature Up to +35 °C with relative humidity and other solid state devices that are typically designed <65 % into power conversion and power conditioning equipment. Country of Origin Mexico 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 Ordering Part Number require high-speed protection. PSR 030 FL 0550 Z Littelfuse POWR-SPEED PSR series products offer optimized circuit protection at the extremely fast speed Series required to protect modern day power conversion devices. Such products are commonly found in numerous applications Case Size Packing Quantity including pulp and paper industries, cranes and heavy-lifting 30, 31, 32, 33, 70, 71, 72, 73 Z = (2–3 pcs/box) equipment, processing industries, wastewater treatment Termination Amperage plants, and various large factories and MRO facilities. FL - Flush end metric thread FS - Flush end inches thread Features/Benefits  Best in class dc performance  Extremely current limiting Catalog Number  Superior cycling capability  Global certification cURus, CCC* SERIES CASE TERMINATION AMPERAGE CATALOG ORDERING SIZE NUMBER PART NUMBER  Direct bus-bar mount design PSR 030 FL 0550 PSR030FL0550 PSR030FL0550Z  Visual and optional microswitch fuse blown indication  Low watt-loss design  Compliance with US and Canadian requirements Recommended Accessories  Fast-acting Class aR performance Microswitch: M S3H1000C (case size 30 to 33) Applications MS7H1500C (case size 70 to 73)  Power conversion devices (UPS, inverter, rectifiers, drives)  Dc systems (dc common bus, dc injection braking) Web Resources  Battery protection application (energy storage systems) Download technical documents: Littelfuse.com/PSR  Electric vehicle charging stations Note: high-speed fuses are designed for fixed installations. They are not  Heaters and power supplies intended for use in moving vehicle applications. * Refer to CCC section of Electrical Characteristics table Littelfuse.com/PSR © 2021 Littelfuse, Inc. 1 of 20 Rev: 120721

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Electrical Characteristics CATALOG NUMBER VOLTAGE INTERRUPTING TOTAL CLEARING WATT LOSS AGENCY CASE AMPERE RATING (V) RATING MELTING CERTIFICATION SIZE RATING (A) (PRE-ARC) I2T (A2s) AT AT 100 % FLUSH END FLUSH END AC 2 2 RATED METRIC THREAD INCHES THREAD DC AC DC I T (A s) RATED VOLTAGE CURRENT (W) cURus CCC* IEC UL AC DC PSR030FL0040 PSR030FS0040 40 690 700 600 200 kA 150 kA 76 280 260 12 • • PSR030FL0050 PSR030FS0050 50 690 700 600 200 kA 150 kA 110 598 384 15 • • PSR030FL0063 PSR030FS0063 63 690 700 600 200 kA 150 kA 176 1023 640 20 • • PSR030FL0080 PSR030FS0080 80 690 700 600 200 kA 150 kA 304 1728 1252 24 • • PSR030FL0100 PSR030FS0100 100 690 700 600 200 kA 150 kA 437 2835 1575 27 • • PSR030FL0125 PSR030FS0125 125 690 700 600 200 kA 150 kA 707 4684 2783 36 • • PSR030FL0160 PSR030FS0160 160 690 700 600 200 kA 150 kA 1359 9114 5507 39 • • 30 PSR030FL0200 PSR030FS0200 200 690 700 600 200 kA 150 kA 3012 15169 14700 39 • • PSR030FL0250 PSR030FS0250 250 690 700 600 200 kA 150 kA 4668 29952 20833 50 • • PSR030FL0315 PSR030FS0315 315 690 700 600 200 kA 150 kA 7131 61830 31600 61 • • PSR030FL0350 PSR030FS0350 350 690 700 600 200 kA 150 kA 12007 85320 49273 62 • • PSR030FL0400 PSR030FS0400 400 690 700 600 200 kA 150 kA 16209 114750 63367 75 • • PSR030FL0450 PSR030FS0450 450 690 700 600 200 kA 150 kA 23133 160110 93533 75 • • PSR030FL0500 PSR030FS0500 500 690 700 600 200 kA 150 kA 31429 225180 137333 80 • • PSR030FL0550 PSR030FS0550 550 690 700 600 200 kA 150 kA 44323 268920 145400 78 • • PSR030FL0630 PSR030FS0630 630 690 700 550 200 kA 150 kA 57404 480010 267800 90 • PSR031FL0200 PSR031FS0200 200 690 700 600 200 kA 150 kA 1965 17334 16188 49 • • PSR031FL0250 PSR031FS0250 250 690 700 600 200 kA 150 kA 3789 35343 21080 52 • • PSR031FL0315 PSR031FS0315 315 690 700 600 200 kA 150 kA 6862 59130 30694 61 • • PSR031FL0350 PSR031FS0350 350 690 700 600 200 kA 150 kA 9523 76140 40996 63 • • PSR031FL0400 PSR031FS0400 400 690 700 600 200 kA 150 kA 14770 124335 64359 64 • • 31 PSR031FL0450 PSR031FS0450 450 690 700 600 200 kA 150 kA 22457 178200 97444 69 • • PSR031FL0500 PSR031FS0500 500 690 700 600 200 kA 150 kA 29751 251505 125935 81 • • PSR031FL0550 PSR031FS0550 550 690 700 600 200 kA 150 kA 42056 289170 171845 77 • • PSR031FL0630 PSR031FS0630 630 690 700 600 200 kA 150 kA 45403 415500 175500 93 • • PSR031FL0700 PSR031FS0700 700 690 700 600 200 kA 150 kA 98187 601425 337260 92 • • PSR031FL0800 PSR031FS0800 800 690 700 600 200 kA 150 kA 137208 848880 502800 106 • • PSR031FL0900 PSR031FS0900 900 550 600 550 200 kA 150 kA 155163 945100 631820 118 • PSR032FL0400 PSR032FS0400 400 690 700 600 200 kA 150 kA 11104 79650 44533 82 • • PSR032FL0450 PSR032FS0450 450 690 700 600 200 kA 150 kA 15535 116100 65463 88 • • PSR032FL0500 PSR032FS0500 500 690 700 600 200 kA 150 kA 21573 161460 88277 94 • • PSR032FL0550 PSR032FS0550 550 690 700 600 200 kA 150 kA 26327 177660 107960 104 • • PSR032FL0630 PSR032FS0630 630 690 700 600 200 kA 150 kA 34790 234900 156963 110 • • PSR032FL0700 PSR032FS0700 700 690 700 600 200 kA 150 kA 51191 291870 209287 117 • • 32 PSR032FL0800 PSR032FS0800 800 690 700 600 200 kA 150 kA 60125 472770 249000 145 • • PSR032FL0900 PSR032FS0900 900 690 700 600 200 kA 150 kA 107785 764100 404000 145 • • PSR032FL1000 PSR032FS1000 1000 690 700 600 200 kA 150 kA 190102 933120 672333 146 • • PSR032FL1100 PSR032FS1100 1100 690 700 600 200 kA 150 kA 225379 1247400 744000 149 • • PSR032FL1250 PSR032FS1250 1250 550** 600** 550** 200 kA 150 kA 336661 1114994 1197000 149 • PSR032FL1400 PSR032FS1400 1400 450 500 450 200 kA 150 kA 551749 1611639 1865400 154 • PSR032FL1500 PSR032FS1500 1500 450 500 450 200 kA 150 kA 673360 2045907 1735500 171 • PSR033FL0450 PSR033FS0450 450 690 700 600 200 kA 150 kA 13600 106380 58947 99 • • PSR033FL0500 PSR033FS0500 500 690 700 600 200 kA 150 kA 16434 140400 77846 107 • • PSR033FL0550 PSR033FS0550 550 690 700 600 200 kA 150 kA 23314 187650 100461 108 • • PSR033FL0630 PSR033FS0630 630 690 700 600 200 kA 150 kA 38727 285930 142437 113 • • PSR033FL0700 PSR033FS0700 700 690 700 600 200 kA 150 kA 56763 392580 209863 113 • • PSR033FL0800 PSR033FS0800 800 690 700 600 200 kA 150 kA 84691 575505 348500 120 • • PSR033FL0900 PSR033FS0900 900 690 700 600 200 kA 150 kA 122619 740340 451177 122 • • 33 PSR033FL1000 PSR033FS1000 1000 690 700 600 200 kA 150 kA 222350 1170450 787750 124 • • PSR033FL1100 PSR033FS1100 1100 690 700 600 200 kA 150 kA 310824 1568700 821400 127 • • PSR033FL1250 PSR033FS1250 1250 690 700 600 200 kA 150 kA 476902 2403000 1674333 131 • • PSR033FL1400 PSR033FS1400 1400 690 700 500 200 kA 150 kA 583552 2920050 1979750 144 • • PSR033FL1500 PSR033FS1500 1500 600 650 500 200 kA 150 kA 674538 2433200 1996733 163 • • PSR033FL1600 PSR033FS1600 1600 600 650 500 200 kA 150 kA 779948 2942800 2301633 182 • • PSR033FL1800 PSR033FS1800 1800 600 650 500 200 kA 150 kA 952196 3785040 2724180 224 • • PSR033FL2000 PSR033FS2000 2000 550 600 500 200 kA 150 kA 1234315 4131600 3755180 222 • • PSR033FL2250 PSR033FS2250 2250 500 550 450 200 kA 150 kA 1236000 4459651 3859500 299 • *CCC Certification only on Flush End Metric Thread Version **Littelfuse self-certified Littelfuse.com/PSR © 2021 Littelfuse, Inc. 2 of 20 Rev: 120721

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Electrical Characteristics (cont.) TOTAL CATALOG NUMBER VOLTAGE INTERRUPTING AGENCY CLEARING WATT LOSS CASE AMPERE RATING (V) RATING MELTING CERTIFICATION SIZE RATING (A) (PRE-ARC) I2T (A2s) AT AT 100 % FLUSH END FLUSH END AC I2T (A2s) RATED VOLTAGE RATED METRIC THREAD INCHES THREAD DC AC DC CURRENT (W) cURus CCC* IEC UL AC DC PSR070FL0050 PSR070FS0050 50 1250 1300 1000 100 kA 150 kA 177 2050 400 21 • • PSR070FL0063 PSR070FS0063 63 1250 1300 1000 100 kA 150 kA 273 3399 900 23 • • PSR070FL0080 PSR070FS0080 80 1250 1300 1000 100 kA 150 kA 583 6732 2200 24 • • PSR070FL0100 PSR070FS0100 100 1250 1300 1000 100 kA 150 kA 974 10996 3750 29 • • PSR070FL0125 PSR070FS0125 125 1250 1300 1000 100 kA 150 kA 1352 13011 5150 43 • • PSR070FL0160 PSR070FS0160 160 1250 1300 1000 100 kA 150 kA 2377 25662 8950 51 • • 70 PSR070FL0200 PSR070FS0200 200 1250 1300 1000 100 kA 150 kA 4177 39087 17267 61 • • PSR070FL0250 PSR070FS0250 250 1250 1300 1000 100 kA 150 kA 8629 89790 36750 71 • • PSR070FL0280 PSR070FS0280 280 1250 1300 1000 100 kA 150 kA 11844 113201 46750 71 • • PSR070FL0315 PSR070FS0315 315 1250 1300 1000 100 kA 150 kA 18162 142051 66833 69 • • PSR070FL0350 PSR070FS0350 350 1250** 1300** 1000** 100 kA 150 kA 22963 215230 95410 73 • PSR070FL0400 PSR070FS0400 400 1100 1200 900 100 kA 150 kA 37103 283480 154320 71 • PSR071FL0160 PSR071FS0160 160 1250 1300 1000 100 kA 150 kA 2756 24600 8800 42 • • PSR071FL0200 PSR071FS0200 200 1250 1300 1000 100 kA 150 kA 4918 50307 19050 52 • • PSR071FL0250 PSR071FS0250 250 1250 1300 1000 100 kA 150 kA 10592 104427 43100 54 • • PSR071FL0280 PSR071FS0280 280 1250 1300 1000 100 kA 150 kA 13763 131897 54150 58 • PSR071FL0315 PSR071FS0315 315 1250 1300 1000 100 kA 150 kA 20882 200244 67450 60 • • 71 PSR071FL0350 PSR071FS0350 350 1250 1300 1000 100 kA 150 kA 23301 225500 102500 71 • • PSR071FL0400 PSR071FS0400 400 1250 1300 1000 100 kA 150 kA 43211 374986 185000 69 • • PSR071FL0450 PSR071FS0450 450 1250 1300 1000 100 kA 150 kA 55915 452394 241333 88 • • PSR071FL0500 PSR071FS0500 500 1100 1200 900 100 kA 150 kA 75315 468845 253960 82 • PSR071FL0550 PSR071FS0550 550 1100 1200 900 100 kA 150 kA 87328 693507 332600 90 • PSR071FL0630 PSR071FS0630 630 1000 1100 900 100 kA 150 kA 131240 790862 426550 100 • PSR072FL0250 PSR072FS0250 250 1250 1300 1000 100 kA 150 kA 7737 72789 28567 63 • • PSR072FL0280 PSR072FS0280 280 1250 1300 1000 100 kA 150 kA 10915 124538 46897 62 • • PSR072FL0315 PSR072FS0315 315 1250 1300 1000 100 kA 150 kA 16187 145140 58867 67 • • PSR072FL0350 PSR072FS0350 350 1250 1300 1000 100 kA 150 kA 18727 160447 69633 80 • • PSR072FL0400 PSR072FS0400 400 1250 1300 1000 100 kA 150 kA 27112 243540 108000 89 • • PSR072FL0450 PSR072FS0450 450 1250 1300 1000 100 kA 150 kA 35927 406413 159133 107 • • 72 PSR072FL0500 PSR072FS0500 500 1250 1300 1000 100 kA 150 kA 50398 425375 216333 115 • • PSR072FL0550 PSR072FS0550 550 1250 1300 1000 100 kA 150 kA 73858 539833 271333 115 • • PSR072FL0630 PSR072FS0630 630 1250 1300 1000 100 kA 150 kA 126126 942180 436000 119 • • PSR072FL0700 PSR072FS0700 700 1100 1200 900** 100 kA 150 kA 228761 1123694 715180 115 • PSR072FL0800 PSR072FS0800 800 1100 1200 900** 100 kA 150 kA 230695 1432388 911650 113 • PSR072FL0900 PSR072FS0900 900 1000** 1100** 900** 100 kA 150 kA 376641 1309993 1030400 125 • PSR072FL1000 PSR072FS1000 1000 850 900 800** 100 kA 150 kA 455955 1772548 1361500 136 • PSR073FL0315 PSR073FS0315 315 1250 1300 1000 100 kA 150 kA 10245 106600 38650 88 • • PSR073FL0350 PSR073FS0350 350 1250 1300 1000 100 kA 150 kA 13586 159627 57467 96 • • PSR073FL0400 PSR073FS0400 400 1250 1300 1000 100 kA 150 kA 19797 211273 86800 124 • • PSR073FL0450 PSR073FS0450 450 1250 1300 1000 100 kA 150 kA 29834 279073 114333 122 • • 73 PSR073FL0500 PSR073FS0500 500 1250 1300 1000 100 kA 150 kA 42751 416437 184500 121 • • PSR073FL0550 PSR073FS0550 550 1250 1300 1000 100 kA 150 kA 55513 491713 224500 130 • • PSR073FL0630 PSR073FS0630 630 1250 1300 1000 100 kA 150 kA 94649 804338 377500 136 • • PSR073FL0700 PSR073FS0700 700 1250 1300 1000 100 kA 150 kA 158097 1170960 575667 135 • • * CCC Certification only on Flush End Metric Thread Version ** Littelfuse self-certified Littelfuse.com/PSR © 2021 Littelfuse, Inc. 3 of 20 Rev: 120721

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Ordering Information FLUSH END - METRIC THREAD FLUSH END - INCHES THREAD CASE BOX SIZE CATALOG ORDERING CATALOG ORDERING QUANTITY NUMBER PART NUMBER UPC NUMBER PART NUMBER UPC PCS/BOX PSR030FL0040 PSR030FL0040Z 07945820436 PSR030FS0040 PSR030FS0040Z 07945820451 3 pcs/box PSR030FL0050 PSR030FL0050Z 07945820437 PSR030FS0050 PSR030FS0050Z 07945820452 3 pcs/box PSR030FL0063 PSR030FL0063Z 07945820438 PSR030FS0063 PSR030FS0063Z 07945820453 3 pcs/box PSR030FL0080 PSR030FL0080Z 07945820439 PSR030FS0080 PSR030FS0080Z 07945820454 3 pcs/box PSR030FL0100 PSR030FL0100Z 07945820440 PSR030FS0100 PSR030FS0100Z 07945820455 3 pcs/box PSR030FL0125 PSR030FL0125Z 07945820441 PSR030FS0125 PSR030FS0125Z 07945820456 3 pcs/box PSR030FL0160 PSR030FL0160Z 07945820442 PSR030FS0160 PSR030FS0160Z 07945820457 3 pcs/box PSR030FL0200 PSR030FL0200Z 07945820443 PSR030FS0200 PSR030FS0200Z 07945820458 3 pcs/box 30 PSR030FL0250 PSR030FL0250Z 07945820444 PSR030FS0250 PSR030FS0250Z 07945820459 3 pcs/box PSR030FL0315 PSR030FL0315Z 07945820445 PSR030FS0315 PSR030FS0315Z 07945820460 3 pcs/box PSR030FL0350 PSR030FL0350Z 07945820446 PSR030FS0350 PSR030FS0350Z 07945820461 3 pcs/box PSR030FL0400 PSR030FL0400Z 07945820447 PSR030FS0400 PSR030FS0400Z 07945820462 3 pcs/box PSR030FL0450 PSR030FL0450Z 07945820448 PSR030FS0450 PSR030FS0450Z 07945820463 3 pcs/box PSR030FL0500 PSR030FL0500Z 07945820449 PSR030FS0500 PSR030FS0500Z 07945820464 3 pcs/box PSR030FL0550 PSR030FL0550Z 07945820450 PSR030FS0550 PSR030FS0550Z 07945820465 3 pcs/box PSR030FL0630 PSR030FL0630Z 07945827757 PSR030FS0630 PSR030FS0630Z 07945827778 3 pcs/box PSR031FL0200 PSR031FL0200Z 07945820466 PSR031FS0200 PSR031FS0200Z 07945820477 3 pcs/box PSR031FL0250 PSR031FL0250Z 07945820467 PSR031FS0250 PSR031FS0250Z 07945820478 3 pcs/box PSR031FL0315 PSR031FL0315Z 07945820468 PSR031FS0315 PSR031FS0315Z 07945820479 3 pcs/box PSR031FL0350 PSR031FL0350Z 07945820469 PSR031FS0350 PSR031FS0350Z 07945820480 3 pcs/box PSR031FL0400 PSR031FL0400Z 07945820470 PSR031FS0400 PSR031FS0400Z 07945820481 3 pcs/box PSR031FL0450 PSR031FL0450Z 07945820471 PSR031FS0450 PSR031FS0450Z 07945820482 3 pcs/box 31 PSR031FL0500 PSR031FL0500Z 07945820472 PSR031FS0500 PSR031FS0500Z 07945820483 3 pcs/box PSR031FL0550 PSR031FL0550Z 07945820473 PSR031FS0550 PSR031FS0550Z 07945820484 3 pcs/box PSR031FL0630 PSR031FL0630Z 07945820474 PSR031FS0630 PSR031FS0630Z 07945820485 3 pcs/box PSR031FL0700 PSR031FL0700Z 07945820475 PSR031FS0700 PSR031FS0700Z 07945820486 3 pcs/box PSR031FL0800 PSR031FL0800Z 07945820476 PSR031FS0800 PSR031FS0800Z 07945820487 3 pcs/box PSR031FL0900 PSR031FL0900Z 07945827758 PSR031FS0900 PSR031FS0900Z 07945827779 3 pcs/box PSR032FL0400 PSR032FL0400Z 07945820488 PSR032FS0400 PSR032FS0400Z 07945820498 3 pcs/box PSR032FL0450 PSR032FL0450Z 07945820489 PSR032FS0450 PSR032FS0450Z 07945820499 3 pcs/box PSR032FL0500 PSR032FL0500Z 07945820490 PSR032FS0500 PSR032FS0500Z 07945820500 3 pcs/box PSR032FL0550 PSR032FL0550Z 07945820491 PSR032FS0550 PSR032FS0550Z 07945820501 3 pcs/box PSR032FL0630 PSR032FL0630Z 07945820492 PSR032FS0630 PSR032FS0630Z 07945820502 3 pcs/box PSR032FL0700 PSR032FL0700Z 07945820493 PSR032FS0700 PSR032FS0700Z 07945820503 3 pcs/box 32 PSR032FL0800 PSR032FL0800Z 07945820494 PSR032FS0800 PSR032FS0800Z 07945820504 3 pcs/box PSR032FL0900 PSR032FL0900Z 07945820495 PSR032FS0900 PSR032FS0900Z 07945820505 3 pcs/box PSR032FL1000 PSR032FL1000Z 07945820496 PSR032FS1000 PSR032FS1000Z 07945820506 3 pcs/box PSR032FL1100 PSR032FL1100Z 07945820497 PSR032FS1100 PSR032FS1100Z 07945820507 3 pcs/box PSR032FL1250 PSR032FL1250Z 07945827759 PSR032FS1250 PSR032FS1250Z 07945827780 3 pcs/box PSR032FL1400 PSR032FL1400Z 07945827760 PSR032FS1400 PSR032FS1400Z 07945827781 3 pcs/box PSR032FL1500 PSR032FL1500Z 07945827761 PSR032FS1500 PSR032FS1500Z 07945827782 3 pcs/box PSR033FL0450 PSR033FL0450H 07945822163 PSR033FS0450 PSR033FS0450H 07945822164 3 pcs/box PSR033FL0500 PSR033FL0500H 07945820508 PSR033FS0500 PSR033FS0500H 07945820522 3 pcs/box PSR033FL0550 PSR033FL0550H 07945820509 PSR033FS0550 PSR033FS0550H 07945820523 3 pcs/box PSR033FL0630 PSR033FL0630H 07945820510 PSR033FS0630 PSR033FS0630H 07945820524 3 pcs/box PSR033FL0700 PSR033FL0700H 07945820511 PSR033FS0700 PSR033FS0700H 07945820525 3 pcs/box PSR033FL0800 PSR033FL0800H 07945820512 PSR033FS0800 PSR033FS0800H 07945820526 3 pcs/box PSR033FL0900 PSR033FL0900H 07945820513 PSR033FS0900 PSR033FS0900H 07945820527 3 pcs/box PSR033FL1000 PSR033FL1000H 07945820514 PSR033FS1000 PSR033FS1000H 07945820528 3 pcs/box 33 PSR033FL1100 PSR033FL1100H 07945820515 PSR033FS1100 PSR033FS1100H 07945820529 3 pcs/box PSR033FL1250 PSR033FL1250H 07945820516 PSR033FS1250 PSR033FS1250H 07945820530 3 pcs/box PSR033FL1400 PSR033FL1400H 07945820517 PSR033FS1400 PSR033FS1400H 07945820531 3 pcs/box PSR033FL1500 PSR033FL1500H 07945820518 PSR033FS1500 PSR033FS1500H 07945820532 3 pcs/box PSR033FL1600 PSR033FL1600H 07945820519 PSR033FS1600 PSR033FS1600H 07945820533 3 pcs/box PSR033FL1800 PSR033FL1800H 07945820520 PSR033FS1800 PSR033FS1800H 07945820534 3 pcs/box PSR033FL2000 PSR033FL2000H 07945820521 PSR033FS2000 PSR033FS2000H 07945820535 3 pcs/box PSR033FL2250 PSR033FL2250Z 07945827762 PSR033FS2250 PSR033FS2250Z 07945827783 3 pcs/box Littelfuse.com/PSR © 2021 Littelfuse, Inc. 4 of 20 Rev: 120721

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Ordering Information (cont.) FLUSH END - METRIC THREAD FLUSH END - INCHES THREAD CASE BOX SIZE CATALOG ORDERING UPC CATALOG ORDERING QUANTITY NUMBER PART NUMBER NUMBER PART NUMBER UPC PCS/BOX PSR070FL0050 PSR070FL0050Z 07945820536 PSR070FS0050 PSR070FS0050Z 07945820546 2 pcs/box PSR070FL0063 PSR070FL0063Z 07945820537 PSR070FS0063 PSR070FS0063Z 07945820547 2 pcs/box PSR070FL0080 PSR070FL0080Z 07945820538 PSR070FS0080 PSR070FS0080Z 07945820548 2 pcs/box PSR070FL0100 PSR070FL0100Z 07945820539 PSR070FS0100 PSR070FS0100Z 07945820549 2 pcs/box PSR070FL0125 PSR070FL0125Z 07945820540 PSR070FS0125 PSR070FS0125Z 07945820550 2 pcs/box PSR070FL0160 PSR070FL0160Z 07945820541 PSR070FS0160 PSR070FS0160Z 07945820551 2 pcs/box 70 PSR070FL0200 PSR070FL0200Z 07945820542 PSR070FS0200 PSR070FS0200Z 07945820552 2 pcs/box PSR070FL0250 PSR070FL0250Z 07945820543 PSR070FS0250 PSR070FS0250Z 07945820553 2 pcs/box PSR070FL0280 PSR070FL0280Z 07945820544 PSR070FS0280 PSR070FS0280Z 07945820554 2 pcs/box PSR070FL0315 PSR070FL0315Z 07945820545 PSR070FS0315 PSR070FS0315Z 07945820555 2 pcs/box PSR070FL0350 PSR070FL0350Z 07945827763 PSR070FS0350 PSR070FS0350Z 07945827784 2 pcs/box PSR070FL0400 PSR070FL0400Z 07945827764 PSR070FS0400 PSR070FS0400Z 07945827785 2 pcs/box PSR071FL0160 PSR071FL0160Z 07945820556 PSR071FS0160 PSR071FS0160Z 07945820564 2 pcs/box PSR071FL0200 PSR071FL0200Z 07945820557 PSR071FS0200 PSR071FS0200Z 07945820565 2 pcs/box PSR071FL0250 PSR071FL0250Z 07945820558 PSR071FS0250 PSR071FS0250Z 07945820566 2 pcs/box PSR071FL0280 PSR071FL0280Z 07945820573 PSR071FS0280 PSR071FS0280Z 07945820582 2 pcs/box PSR071FL0315 PSR071FL0315Z 07945820560 PSR071FS0315 PSR071FS0315Z 07945820568 2 pcs/box 71 PSR071FL0350 PSR071FL0350Z 07945820561 PSR071FS0350 PSR071FS0350Z 07945820569 2 pcs/box PSR071FL0400 PSR071FL0400Z 07945820562 PSR071FS0400 PSR071FS0400Z 07945820570 2 pcs/box PSR071FL0450 PSR071FL0450Z 07945820563 PSR071FS0450 PSR071FS0450Z 07945820571 2 pcs/box PSR071FL0500 PSR071FL0500Z 07945827765 PSR071FS0500 PSR071FS0500Z 07945827786 2 pcs/box PSR071FL0550 PSR071FL0550Z 07945827766 PSR071FS0550 PSR071FS0550Z 07945827787 2 pcs/box PSR071FL0630 PSR071FL0630Z 07945827767 PSR071FS0630 PSR071FS0630Z 07945827788 2 pcs/box PSR072FL0250 PSR072FL0250Z 07945820572 PSR072FS0250 PSR072FS0250Z 07945820581 2 pcs/box PSR072FL0280 PSR072FL0280Z 07945820573 PSR072FS0280 PSR072FS0280Z 07945820582 2 pcs/box PSR072FL0315 PSR072FL0315Z 07945820574 PSR072FS0315 PSR072FS0315Z 07945820583 2 pcs/box PSR072FL0350 PSR072FL0350Z 07945820575 PSR072FS0350 PSR072FS0350Z 07945820584 2 pcs/box PSR072FL0400 PSR072FL0400Z 07945820576 PSR072FS0400 PSR072FS0400Z 07945820585 2 pcs/box PSR072FL0450 PSR072FL0450Z 07945820577 PSR072FS0450 PSR072FS0450Z 07945820586 2 pcs/box 72 PSR072FL0500 PSR072FL0500Z 07945820578 PSR072FS0500 PSR072FS0500Z 07945820587 2 pcs/box PSR072FL0550 PSR072FL0550Z 07945820579 PSR072FS0550 PSR072FS0550Z 07945820588 2 pcs/box PSR072FL0630 PSR072FL0630Z 07945820580 PSR072FS0630 PSR072FS0630Z 07945820589 2 pcs/box PSR072FL0700 PSR072FL0700Z 07945827768 PSR072FS0700 PSR072FS0700Z 07945827789 2 pcs/box PSR072FL0800 PSR072FL0800Z 07945827769 PSR072FS0800 PSR072FS0800Z 07945827790 2 pcs/box PSR072FL0900 PSR072FL0900Z 07945827770 PSR072FS0900 PSR072FS0900Z 07945827793 2 pcs/box PSR072FL1000 PSR072FL1000Z 07945827771 PSR072FS1000 PSR072FS1000Z 07945827794 2 pcs/box PSR073FL0315 PSR073FL0315Z 07945820590 PSR073FS0315 PSR073FS0315Z 07945820602 2 pcs/box PSR073FL0350 PSR073FL0350Z 07945820591 PSR073FS0350 PSR073FS0350Z 07945820603 2 pcs/box PSR073FL0400 PSR073FL0400Z 07945820592 PSR073FS0400 PSR073FS0400Z 07945820604 2 pcs/box PSR073FL0450 PSR073FL0450Z 07945820593 PSR073FS0450 PSR073FS0450Z 07945820605 2 pcs/box 73 PSR073FL0500 PSR073FL0500Z 07945820594 PSR073FS0500 PSR073FS0500Z 07945820606 2 pcs/box PSR073FL0550 PSR073FL0550Z 07945820595 PSR073FS0550 PSR073FS0550Z 07945820607 2 pcs/box PSR073FL0630 PSR073FL0630Z 07945820596 PSR073FS0630 PSR073FS0630Z 07945820608 2 pcs/box PSR073FL0700 PSR073FL0700Z 07945820597 PSR073FS0700 PSR073FS0700Z 07945820609 2 pcs/box Littelfuse.com/PSR © 2021 Littelfuse, Inc. 5 of 20 Rev: 120721

REVISION REV DATE DESCRIPTION 1 1/30/17 UNCONTROLLED DOCUMENT MRY 2 3/1/17 ADD THREAD DIMENSIONS MRY 3 3/2/17 UPDATE THREAD COLUMN HEADERS MRY 4 4/24/17 CHANGE 33 DIM A MRY 5 11/5/18 CHG DIM A, ADD SIZE 31, 70 & 73, ADD NEW VIEW MRY DIMENSIONS MM (IN) RECOMMENDED CASE SIZE A B C D E F G FL METRIC THREAD FS INCHES THREAD TORQUE 49.0-51.0 30 (1.93-2.01) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 47.4 (1.86) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm 49.0-51.0 31 (1.93-2.01) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.80) 48.2 (1.90) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm 50.0-52.0 32 (1.97-2.05) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 48.8 (1.92) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm 50.0-52.0 33 (1.97-2.05) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 49.2 (1.94) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm 73.0-75.0 70 (2.87-2.95) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.70) 741.4 (2.81) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm 73.3-74.7 71 (2.89-2.94) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.79) 72.2 (2.84) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm 74.0-76.0 REVISION 72 (2.91-2.99) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 72.8 (2.R8E7V ) 9DA3T.E4 (3.68) M10x1.5DESCRIPTION 3/8"-16 UNC-2B 26-35 Nm 1 1/30/17 UNCONTROLLED DOCUMENT MRY 2 3/1/17 ADD THREAD DIMENSIONS MRY 74.0-76.0 3 3/2/17 UPDATE THREAD COLUMN HEADERS MRY 73 (2.91-2.99) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 73.2 (2.848) 14/0246/1.79 (4.21) M12x1C.H7A5NGE 33 DIM A MR1Y/2"-13 UNC-2B 45-55 Nm 5 11/5/18 CHG DIM A, ADD SIZE 31, 70 & 73, ADD NEW VIEW MRY DIMENSIONS MM (INP) OWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODYRECOMMENDED CASE SIZE A B C D E F G FL METRIC THREAD FS INCHES THREAD TORQUE 49.0-51.0 1/4" QC 30 (1.93-2.01) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 47.4 (1.86) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2B 13-20 Nm TERMINAL VISUAL 49.0-51.0 Dimensions INDICATOR 31 (1.93-2.01) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.80) 48.2 (1.90) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm MICROSWITCH 50.0-52.0 (MS3H1000C/MS7H1500C) 32 M4x0.7 THREAD (1.97-2.05) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 48.8 (1.92) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm 10.00 (.394) 50.0-52.0 STUD LENGTH 33 (1.97-2.05) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 49.2 (1.94) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm 73.0-75.0 70 (2.87-2.95) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.70) 741.4 (2.81) 76.4 (3.01) M8x1.25 5/16"-18 UNC-2FBL/FS 13-20 Nm 73.3-74.7 71 (2.89-2.94) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.79) 72.2 (2.84) 84.9 (3.34) M8x1.25 5/16"-18 UNC-2B 13-20 Nm G 74.0-76.0 72 (2.91-2.99) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 72.8 (2.87) 93.4 (3.68) M10x1.5 3/8"-16 UNC-2B 26-35 Nm D 74.0-76.0 E B 73 (2.91-2.99) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 73.2 (2.88) 106.9 (4.21) M12x1.75 1/2"-13 UNC-2B 45-55 Nm DENOTES CRITICAL CHARACTERISTICS. CPK 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 C CP MUST BE WITHIN THE DIMENSIONAL LIMITATIONS F SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. C MATL SPEC FINISH A DRW DATE SCALE FINISH GOOD WT 1/4" QC myork 1/30/2017 NTS GRAMS/PIECE TERMINAL UNLESS OTHERWISE SPECIFIED, DIMENSIONS ARE IN MILLIMETERS, DIMENSIONS IN VISUAL BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994 INDICATOR 3RD ANGLE PROJECTION M4x0.7 THREAD TITLE PSR SERIES OUTLINE 10.00 (.394) STUD LENGTH Littelfuse® REVISION DRWG NO. SHEET 1 OF 1 CHICAGO, ILLINOIS 60631 5 PSR SERIES FL/FS G D E B DENOTES CRITICAL CHARACTERISTICS. CPK DENOTES CPK DIMENSIONS, -MINIMUM CPK VALUE DIMENSIONS IN MM (IN) DENOTES A CHARACTERISTIC THAT PROVIDES AN INDICATION  OF PROCESS PERFORMANCE. PROCEDURE FOR MEASUREMENT AND TRACKING TO BE DEFINED IN CASE LITTELFUSE INSPECTION INSTRUCTIONS. A B C D E F G FL METRIC FS INDCEHNOETESS CP DIMRENESCIOONSM, -MINEIMNUDM ECPD V ALUE C SIZE THREAD CP THRMEUASTD BE WITHIN THE DTIOMERNSQIOUNEAL LIMITATIONS F SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. C 30 50.0 (1.97) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 47.4 (1.86) 76.4 (3.01) M8 x 1.25MA TL S5PE/C16”–18 UNC 2B 13–2FI0N INSHm A 31 50.0 (1.97) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.8) 48.2 (1.90) 84.9 (3.34) M8 x 1.25DRW myork5/16”–18 UNDATE 1/C30 /22B017 13–2SC0A LNE m FINISH GOOD WT NTS GRAMS/PIECE 32 51.0 (2.01) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 48.8 (1.92) 93.4 (3.68) M10 x 1.5 UNLE3S/S8 O”T–H1ER6W UISNE SCP E2CBIFIED, DIME2N6SI–O3NS5 ANREm IN MILLIMETERS, DIMENSIONS IN BRACKETS [ ] ARE INCHES DIMENSIONING AND DO NOT INCLUDE PLATING. TOLERANCING TO BE INTERPRETED IN ACCORDANCE WITH ANSI Y14.5M-1994 33 51.0 (2.01) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 49.2 (1.94) 106.9 (4.21) M12 x 1.75 3RD A1NGLE PROJECT/I2ON”–13 UNC 2B 45–55 Nm 70 74.0 (2.91) 43.0 (1.69) 43.0 (1.69) 49.0 (1.93) 17.0 (0.67) 71.4 (2.81) 76.4 (3.01) M8 x 1.25TITLE5/16”–18 UNC 2B 13–20 Nm PSR SERIES OUTLINE 71 74.0 (2.91) 51.5 (2.03) 51.5 (2.03) 57.5 (2.26) 20.0 (0.79) 72.2 (2.84) 84.9 (3.34) M8 x 1.25 5/16”–18 UNC 2B 13–20 Nm ® REVISION DRWG NO. SHEET 1 OF 1 72 75.0 (2.95) 60.0 (2.36) 60.0 (2.36) 66.0 (2.60) 23.0 (0.91) 72.8 (2.87) 93.4 (3.68) M10 x 1.5 3/Li C8H”IC–tteAG1O6, UNlfCu 2Bse ILLINOIS 60631 26–535 NmPSR SERIES 73 75.0 (2.95) 73.5 (2.89) 73.5 (2.89) 79.5 (3.13) 30.0 (1.18) 73.2 (2.88) 106.9 (4.21) M12 x 1.75 1/2”–13 UNC 2B 45–55 Nm Littelfuse.com/PSR © 2021 Littelfuse, Inc. 6 of 20 Rev: 120721

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (30 Case Size) 10900 91000 80 80 70 70 60 60 50 50 40 40 30 30 20 20 109 190 8 - 40A 8 7 7 6 5 - 50A 6 5 4 - 63A 4 3 3 - 80A 2 - 100A 2 - 125A 0.19 01.9 0.8 - 160A 0.8 0.7 0.7 0.6 - 200A 0.6 0.5 0.5 0.4 - 250A 0.4 0.3 0.3 - 315A 0.2 0.2 - 350A - 400A 0.00.91 0.1 0.08 - 450A 0.09 0.08 0.07 0.07 0.06 - 500A 0.06 0.05 0.05 0.04 - 550A 0.04 0.03 0.03 - 630A 0.02 0.02 0.00.0091 00..00109 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000109 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breakingB AcSaIpSa FcOitRy D =A T9A x: rated current of fuse PSR30 40A - 630A DRAWN BY: LLL LITTELFUSE, INC. DATE: 08/03/2021 CHICAGO, IL. USA REVISION: C TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR30 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 7 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (31 Case Size) 10900 19000 80 80 70 70 60 60 50 50 40 40 30 30 20 20 109 10 8 - 200A 9 8 7 7 6 6 5 - 250A 5 4 - 315A 4 3 3 - 350A 2 - 400A 2 - 450A 0.19 1 0.8 - 500A 0.9 0.8 0.7 0.7 0.6 - 550A 0.6 0.5 0.5 0.4 - 630A 0.4 0.3 0.3 - 700A 0.2 0.2 - 800A - 900A 0.00.91 00..019 0.08 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.00.0091 00..00019 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000019 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breaking capacity = 9 x rated current of fuse BASIS FOR DATA: PSR31 200A - 900A DRAWN BY: LLL LITTELFUSE, INC. DATE: 08/05/2021 CHICAGO, IL. USA REVISION: B TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR31 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 8 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (32 Case Size) 10900 91000 80 80 70 70 60 60 50 50 40 40 30 30 20 20 109 10 8 - 400A 9 8 7 7 6 - 450A 6 5 5 4 - 500A 4 3 3 - 550A 2 - 630A 2 - 700A 0.19 01.9 0.8 - 800A 0.8 0.7 0.7 0.6 0.5 - 900A 0.6 0.5 0.4 - 1000A 0.4 0.3 0.3 - 1100A 0.2 - 1250A 0.2 - 1400A 0.00.91 0.1 0.08 - 1500A 0.09 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.00.0091 00..00109 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000019 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breaking capacity = 9 x rated current of fuse BASIS FOR DATA: PSR32 400A - 1500A LITTELFUSE, INC. DRAWN BY: LLL DATE: 11/10/2021 CHICAGO, IL. USA REVISION: C TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR32 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 9 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (33 Case Size) 10900 91000 80 80 70 70 60 60 50 50 40 40 30 30 20 20 109 910 8 - 450A 8 7 7 6 5 - 450A 6 5 4 - 500A 4 3 3 - 630A 2 - 700A 2 - 800A 0.19 01.9 0.8 - 900A 0.8 0.7 0.7 0.6 0.5 - 1000A 0.6 0.5 0.4 - 1100A 0.4 0.3 0.3 - 1250A 0.2 0.2 - 1400A - 1500A 0.00.91 00..01- 1600A 9 0.08 0.08 0.07 0.07 0.06 0.06 0.05 - 1800A 0.05 0.04 - 2000A 0.04 0.03 0.03 - 2250A 0.02 0.02 0.00.0091 00..00019 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000109 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE * Dc minimum breakinTgE ScaT pVaOcLiTtyA G=E 9: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: x rated current of fuse BASIS FOR DATA: PSR33 450A - 2250A DRAWN BY: LLL LITTELFUSE, INC. DATE: 11/10/2021 CHICAGO, IL. USA REVISION: C TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR33 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 10 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 1000000 1000000 900000 900000 800000 800000 700000 700000 600000 600000 500000 500000 400000 400000 300000 300000 200000 200000 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (70 Case Size) 10900 91000 80 80 70 70 60 60 50 40 - 400A 50 40 30 - 350A 30 20 - 315A 20 - 280A 109 - 250A 910 8 8 7 6 - 200A 7 6 5 4 - 160A 5 4 3 - 125A 3 2 - 100A 2 - 80A 0.19 - 63A 01.9 0.8 0.8 0.7 0.7 0.6 - 50A 0.6 0.5 0.5 0.4 0.4 0.3 0.3 0.2 0.2 0.00.91 00..019 0.08 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.00.0091 00..00109 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000109 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breaking capacity = 9 x rated current of fuse BASIS FOR DATA: PSR070 50A - 400A DRAWN BY: LLL LITTELFUSE, INC. DATE: 08/05/2021 CHICAGO, IL. USA REVISION: B TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR70 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 11 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 20 20 10 10

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (71 Case Size) 10900 91000 80 80 70 70 60 60 50 50 40 40 30 30 20 20 109 10 8 - 160A 9 8 7 7 6 5 - 200A 6 5 4 - 250A 4 3 3 - 280A 2 2 - 315A - 350A 0.19 01.9 0.8 - 400A 0.8 0.7 0.7 0.6 0.6 0.5 - 450A 0.5 0.4 - 500A 0.4 0.3 0.3 - 550A 0.2 0.2 - 630A 0.00.91 00..019 0.08 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.00.0091 00..00019 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000109 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breaking capacity = 9 x rated current of fuse BASIS FOR DATA: PSR071 160A - 630A LITTELFUSE, INC. DRAWN BY: LLL DATE: 11/10/2021 CHICAGO, IL. USA REVISION: D TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR71 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 12 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (72 Case Size) 10900 19000 80 80 70 70 60 60 50 50 40 - 1000A 40 30 30 - 900A 20 20 - 800A - 700A 109 10 8 - 630A 9 8 7 7 6 - 550A 6 5 5 4 - 500A 4 3 3 - 450A 2 2 - 400A - 350A 0.19 1 0.8 - 315A 0.9 0.8 0.7 0.7 0.6 - 280A 0.6 0.5 0.5 0.4 - 250A 0.4 0.3 0.3 0.2 0.2 0.00.91 00..019 0.08 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.00.0091 00..00109 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.00.000091 00..0000019 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breaking capacity = 9 x rated current of fuse BASIS FOR DATA: PSR072 250A - 1000A LITTELFUSE, INC. DRAWN BY: LLL DATE: 11/10/2021 CHICAGO, IL. USA REVISION: D TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 3 FCC01-PSR72 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 13 of 20 Rev: 120721 VIRTUAL MELTING (PRE‐ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Time Current Curve (73 Case Size) 19000 91000 80 80 70 70 60 60 50 50 40 40 30 30 20 20 109 190 8 8 7 7 6 6 5 5 4 4 3 3 2 2 - 700A 0.19 - 630A 01.9 0.8 0.8 0.7 0.7 0.6 - 550A 0.6 0.5 0.5 0.4 - 500A 0.4 0.3 - 450A 0.3 0.2 - 400A 0.2 - 350A 0.00.19 00..109 0.08 - 315A 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03 0.03 0.02 0.02 00.0.0019 00..00019 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 00.0.000091 00..0000109 0.0008 0.0008 0.0007 0.0007 0.0006 0.0006 0.0005 0.0005 0.0004 0.0004 0.0003 0.0003 0.0002 0.0002 0.0001 0.0001 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: * Dc minimum breaking capacity = 9 x rated current of fuse BASIS FOR DATA: PSR073 315A - 700A DRAWN BY: LLL LITTELFUSE, INC. DATE: 04/13/2018 CHICAGO, IL. USA REVISION: A TIME CURRENT CHARACTERISTIC CURVES DRAWING NO.: SHEET 2 O F 2 FCC01-PSR73 - THIS DATA IS GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 14 of 20 Rev: 120721 VIRTUAL MELTING (PRE-ARCING) TIME IN SECONDS 100000 100000 90000 90000 80000 80000 70000 70000 60000 60000 50000 50000 40000 40000 30000 30000 20000 20000 10000 10000 9000 9000 8000 8000 7000 7000 6000 6000 5000 5000 4000 4000 3000 3000 2000 2000 1000 1000 900 900 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Peak Let-Thru Curve (30 Case Size) 100,000 B 630A - 550A - 500A - 450A - 400A - 350A - 315A - 250A - 10,000 200A - 160A - 125A - 100A - 80A - 63A - 50A - 40A - 1,000 A 100 100 1,000 10,000 100,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR30 40A-630A PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR30 - DATA GENERATED IN EXCEL - Peak Let-Thru Curve (31 Case Size) 100,000 B 900A - 800A - 700A - 630A - 550A - 500A - 450A - 10,000 400A - 350A - 315A - 250A - 200A - 1,000 A 100 200 2,000 20,000 200,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR31 200A-900A PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR31 - DATA GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 15 of 20 Rev: 120721 PEAK LET- THRU IN AMPERES PEAK LET- THRU IN AMPERES

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Peak Let-Thru Curve (32 Case Size) 200,000 B 1500A - 1400A - 1250A - 1100A - 1000A - 900A - 800A - 20,000 700A - 630A - 550A - 500A - 450A - 400A - 2,000 A 200 2,000 20,000 200,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES Peak Let-Thru CurPvSeR0 3(23 4030A -C150a0Ase SizeP)EAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR32 - DATA GENERATED IN EXCEL - 100,000 B 2250A - 2000A - 1800A - 1600A - 1500A - 1400A - 1250A - 1000A - 1100A - 900A - 800A - 10,000 700A - 630A - 500A - 450A - 400A - A 1,000 200 2,000 20,000 200,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR33 450A - 2250A PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR33 Littelfuse.com/PSR - DATA GENERATED IN EXCEL - © 2021 Littelfuse, Inc. 16 of 20 Rev: 120721 PEAK LET- THRU IN AMPERES PEAK LET- THRU IN AMPERES

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Peak Let-Thru Curve (70 Case Size) 100,000 400A - B 350A - 315A - 280A - 250A - 200A - 160A - 10,000 125A - 100A - 80A - 63A - 50A - 1,000 A 100 100 1,000 10,000 100,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR070 50A - 400A PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR70 (B) - DATA GENERATED IN EXCEL - Peak Let-Thru Curve (71 Case Size) 100,000 B 630A - 550A - 500A - 450A - 400A - 350A - 315A - 280A - 250A - 200A - 10,000 160A - 1,000 A 100 1,000 10,000 100,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR071 160A - 630A PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR71 - DATA GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 17 of 20 Rev: 120721 PEAK LET- THRU IN AMPERES PEAK LET- THRU IN AMPERES

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Peak Let-Thru Curve (72 Case Size) 100,000 B 1000A - 900A - 800A - 700A - 630A - 550A - 500A - 450A - 400A - 350A - 315A - 10,000 280A - 250A - A 1,000 1,000 10,000 100,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR072 250A - 1000A PEAK LET‐THRU CHARACTERISTIC CURVES FCC05-PSR72 - DATA GENERATED IN EXCEL - Peak Let-Thru Curve (73 Case Size) 100,000 B 700A - 630A - 550A - 500A - 450A - 400A - 350A - 315A - 10,000 A 1,000 1,000 10,000 100,000 AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES PSR073 315A - 700A PEAK LET-THRU CHARACTERISTIC CURVES FCC05-PSR73 (A) - DATA GENERATED IN EXCEL - Littelfuse.com/PSR © 2021 Littelfuse, Inc. 18 of 20 Rev: 120721 PEAK LET- THRU IN AMPERES PEAK LET- THRU IN AMPERES

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Total Clearing I2t Correction Factor Curve Total Clearing I2t Correction Factor Curve (30, 31, 32 and 33 Case Sizes) (70, 71, 72 and 73 Case Sizes) 1.1 1.1 1.1 1.1 1.0 1 1 1 0.9 0.9 0.9 0.9 0.8 0.8 0.8 0.8 0.7 0.7 0.7 0.7 0.6 - 450 V 0.6 0.6 - 850 V 0.6 - 500 V - 900 V 0.5 0.5 0.5 0.5 - 550 V - 1000 V 0.4 - 600 V - 1100 V 0.4 0.4 0.4 - 690 V - 1250 V 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 OPERATING VOTLAGE IN VOLTS OPERATING VOLTAGE IN VOLTS TEST VOLTAGE: 100V - 690V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: TEST VOLTAGE: 200V - 1250V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: BASIS FOR DATA: PSR 450V - 690V BASIS FOR DATA: PSR 850V - 1250V DRAWN BY: LLL LITTELFUSE, INC. DRAWN BY: LLL DATE: 11/15/2021 LITTELFUSE, INC. DATE: 11/15/2021: Peak Arc VoltagCHICeAGO , IL. UuSA rve REVISION: B Peak Arc VoltagCHIeCAG OC, IL. UuSA REVISION: B I2T VARIATION CURVES DRAWING NO.: SHEET 2 O F 3 I2T VARIATION CURVErSve DRAWING NO.: SHEET 3 O F 3 FCC07-PSR FCC07-PSR (30, 31, 32 and 33 Cas- TeHIS DASTA ISi GzENeERATsED) IN EXCEL - (70, 71, 72 and 73 Case- TH IS SDATAi ISz GEeNERsATE)D IN EXCEL - 1400 2400 2300 1300 2200 1200 2100 2000 1100 1900 1000 1800 1700 900 1600 800 1500 1400 700 1300 600 1200 100 200 300 400 500 600 700 500 600 700 800 900 1000 1100 1200 1300 OPERATING VOLTAGE IN VOLTS OPERATING VOLTAGE IN VOLTS TEST VOLTAGE: 100V-690V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: TEST VOLTAGE: 500V-1300V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: BASIS FOR DATA: PLS7R03S0 3 -5P-8S0R03A3 BASIS FOR DATA: PLS7R07S1 3 -5P-8S0R07A2 DRAWN BY: LLL DRAWN BY: LLL LITTELFUSE, INC. LITTELFUSE, INC. 01/263/2015 DATE: DATE: 013/236/20157 CHICAGO, IL. USA REVISION: CHICAGO, IL. USA A Littelfuse.com/PSR REVISION: A MAX ARC VOALRTCA GVEO LVTAARGIAETION CURVE DRAWING NO.: SHEET 3 2 O OFF 3 3 MAX ARC VOALRTCA GVEO LVTAARGIAETION CURVE DRAWING NO.: © 2 0 2 1 SHEET 3 3 O OFF 33 FCFCC09C-0P-SR FCFCC09C-0P-SR Littelfuse, Inc. - THIS DATA IS GENERATED IN EXCEL - 19 of 20 - THIS DATA IS GENERATED IN EXCEL - Rev: 120721 PEAK ARC VOLTAGE IN VOLT TOTAL CLEARING I2t CORRECTION FACTOR PEAK ARC VOLTAGE IN VOLT TOTAL CLEARING I2t CORRECTION FACTOR 1400 1400 1200 1200 1000 1000 800 800 600 600 400 400 200 200 800 800 700 700 600 600 500 500 400 400 300 300 200 200 100 100

POWR-SPEED® Fuse PSR SERIES HIGH-SPEED SQUARE BODY Temperature Derating Curve Watts Loss Correction Factor Curve (temperature of air immediately surrounding fuse) 30% 1 1 0.9 0.9 20% 0.8 0.8 0.7 0.7 10% 0.6 0.6 0 0 0.5 0.5 10% 0.4 0.4 20% 0.3 0.3 30% 40% 0.2 0.2 50% -60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C 140°C -76°F -40°F -4°F 32°F 68°F 104°F 140°F 176°F 212°F 248°F 284°F 0.1 0.1 AMBIENT TEMPERATURE PERCENT OF RATED CURRENT(%) TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: BASIS FOR DATA: PSR Series BASIS FOR DATA: L5P0SR 3 5S-e8r0ie0sA DRAWN BY: LLL DRAWN BY: LLL LITTELFUSE, INC. 04/04/2017 DATE: LITTELFUSE, INC. 013/260/20175 DATE: CHICAGO, IL. USA A REVISION: CHICAGO, IL. USA A REVISION: TEMPERATURE RE-RATING CURVE DRAWING NO.: SHEET 2 OF 2 FCC11-PSR DERATINGI2CTU RCVOER R- EWCATITOTNS LFOASCST OCORRRECTION DRAWING NO.: SHEET 32 O F 32 FCFCC08C-0P-SR - THIS DATA IS GENERATED IN EXCEL - - THIS DATA IS GENERATED IN EXCEL - 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 their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer. Littelfuse.com/PSR © 2021 Littelfuse, Inc. 20 of 20 Rev: 120721 PERCENT OF UPRATING WATTS LOSS CORRECTION FACTOR 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 PERCENT OF DOWNRATING