POWR-GARD Fuse SPXI SERIES IN-LINE SOLAR FUSE 1500 V dc 2.560 A Specifications Voltage Rating 1500 V dc Amperage Rating 2.5, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 15, 20, 25, 30, 32, 35, 40, 45, 50, 55, 60 A Interrupting Ratings SPXI and SPXI-B 2.5-30 A: 30 kA SPXI and SPXI-B 35-60 A: 50 kA SPXI-M and SPXI-BM 25-32A: 50 kA Time Constant 1ms Material Body: melamine Caps: copper alloy (nickel plated) Approvals UL 248-19 Recognized (File: E339112) Environmental RoHS Compliant Description REACH The Littelfuse SPXI solar fuse is designed to integrate Country of Origin Mexico into an in-line assembly within a wire harness. The fuse US Patent 9,564,281 provides photovoltaic (PV) protection that meets UL 248-19 for photovoltaic applications. The SPXI can be electrically insulated by either overmolding or using heat-shrink. Part Numbering System Features/Benefits SPXI xxx T XB UL 248-19 Recognized Options Series 50,000 A interrupting rating Refer to Ordering Number No fuse holder required column in Ordering Ampere Code Information table Refer to Ampere Code Applications Column in Ordering Information Table Photovoltaic high-capacity homerun, truck harness, and Package Quantity wire harness T = 10 L = 50 Recommended Crimping Tool 10-12 AWG: T&B Sta-Kon ERG4002 8 AWG: T&B Sta-Kon ERG4 Web Resources 6 AWG: Burndy MRC840AL Download additional technical information and view the complete solar portfolio: Littelfuse.com/spxi SPXI Dimensions mm (in) 81.41 (3.205) 2.54 A 9.53 3.56 5.59 10.31 12.26 (0.375) (0.140) (0.220) (0.406) (0.483) 110.06 (4.333) 4.520 A 3.56 5.59 12.26 9.53 (0.140) (0.220) 10.31 (0.483) (0.375) (0.406) 110.06 3.56 (4.333) 9.53 12.26 13.72 5.59 (0.140) (0.375) (0.540) (0.483) (0.220) Littelfuse.com 2020 Littelfuse, Inc. 1 of 13 Rev: 02112081.41 (3.205) 9.53 3.56 5.59 10.31 12.26 (0.375) (0.140) (0.220) (0.406) (0.483) POWR-GARD Fuse 110.06 (4.333) 3.56 5.59 SPXI SERIES IN-LINE SOLAR FUSE 12.26 9.53 (0.140) (0.220) (0.483) (0.375) 10.31 (0.406) 2530 A 110.06 (4.333) 3.56 9.53 13.72 12.26 5.59 (0.140) (0.375) (0.483) (0.540) (0.220) SPXI 35-60A 158.04 3560 A 6.222 14.25 10.25 0.561 4.70 0.404 6.70 0.185 0.264 35-60A 20.65 0.813 SPXI-B Dimensions mm (in) SPXI-B 35-60A SPXI-B Dimensions mm (in) 163.58 6.440 13.72 17.02 2.54 A 2.5-4A 0.540 5.50 85.40 0.670 8.50 0.217 3.362 0.335 4.70 10.25 35-60A 20.65 6.70 10.31 14.25 0.404 0.813 0.185 0.264 0.561 0.406 SPXI 35-60A 4.520 A 158.04 4.5-20A 6.222 114.05 14.25 4.490 10.25 0.561 4.70 4.70 0.404 6.70 14.25 10.25 6.70 10.31 0.185 0.185 0.26 40 .264 0.561 0.404 0.406 35-60A 20.65 0.813 SPXI-B 35-60A 3560 A 163.58 6.440 13.72 17.02 5.50 0.540 0.670 8.50 0.217 0.335 35-60A 20.65 0.813 81.41 (3.205) 9.53 3.56 5.59 10.31 12.26 (0.375) (0.140) (0.220) (0.406) (0.483) SPXI-M Dimensions mm (in) 2532 A 110.06 (4.333) 3.56 5.59 12.26 9.53 (0.140) (0.220) (0.483) (0.375) 10.31 (0.406) 110.06 3.56 (4.333) 9.53 12.26 13.72 5.59 (0.140) (0.375) Littelfuse.com (0.540) (0.483) (0.220) 2020 Littelfuse, Inc. 2 of 13 Rev: 021120