1 of 3 spfi series in-line solar fuse 1000 vdc ? 2-30 a (patent pending) specifcations voltage rating 1000 vdc amperage rating 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 15, 20, 25, 30 a interrupting rating 20 ka time constant 1ms material body: melamine caps: copper alloy (nickel plated) approvals ul 2579 recognized (file: e339112) environmental rohs compliant reach country of origin mexico part numbering system web resources downloadable cad drawings and other technical information: littelfuse.com/spf recommended crimping tool t&b sta-kon erg4002 or equivalent weidmller htn 21 or equivalent description the littelfuse spfi solar fuse is designed to integrate into an in-line assembly within a wire harness. the fuse provides photovoltaic (pv) protection that meets ul 2579 for photovoltaic applications. the spfi can be electrically insulated by either overmolding or using approved heat-shrink. features/benefts ? ul 2579 recognized ? meets iec 60269-6 electrical performance requirements ? 20,000 a interrupting rating ? no fuse holder required applications ? photovoltaic wire harness dimensions mm (in) series amp package quantity catalog number ordering number spfi 2 10 spfi002 spfi002.t spfi 3.5 10 spfi03.5 spfi03.5t spfi 20 50 spfi020 spfi020.l spfi xxx t package quantity series amp code t = 10 l = 50 refer to amp code column in ordering information table 63.50 (2.50) 12.26 (0.483) 5.59 (0.22) 10.31 (0.406) 9.53 (0.375) ? 3.56 (0.140) littelfuse.com ? 2015 littelfuse powr-gard ? products rev: 030915 powr-gard ? fuse datasheet
2 of 3 spfi series in-line solar fuse ordering information electrical specifcations series amperage amp code catalog number product marking pack quantity ordering number upc spfi 2 002. spfi002 spfi 2a 10 spfi002.t 07945880898 50 spfi002.l 07945880899 spfi 2.5 02.5 spfi02.5 spfi 2 1a 10 spfi02.5t 07945882604 50 spfi02.5l 07945882605 spfi 3 003. spfi003 spfi 3a 10 spfi003.t 07945880853 50 spfi003.l 07945880854 spfi 3.5 03.5 spfi03.5 spfi 3 1a 10 spfi03.5t 07945879544 50 spfi03.5l 07945879545 spfi 4 004. spfi004 spfi 4a 10 spfi004.t 07945880900 50 spfi004.l 07945880901 spfi 5 005. spfi005 spfi 5a 10 spfi005.t 07945880902 50 spfi005.l 07945880903 spfi 6 006. spfi006 spfi 6a 10 spfi006.t 07945880855 50 spfi006.l 07945880856 spfi 8 008. spfi008 spfi 8a 10 spfi008.t 07945880857 50 spfi008.l 07945880858 spfi 10 010. spfi010 spfi 10a 10 spfi010.t 07945880859 50 spfi010.l 07945880860 spfi 12 012. spfi012 spfi 12a 10 spfi012.t 07945880861 50 spfi012.l 07945880862 spfi 15 015. spfi015 spfi 15a 10 spfi015.t 07945880863 50 spfi015.l 07945880864 spfi 20 020. spfi020 spfi 20a 10 spfi020.t 07945880865 50 spfi020.l 07945880866 spfi 25 025 spfi025 spfi 25a 10 spfi025.t 07945882668 50 spfi025.l 07945882669 spfi 30 030 spfi030 spfi 30a 10 spfi030.t 07945882670 50 spfi030.l 07945882671 amperage voltage interrupting rating wire range cu only (solid/stranded) nom cold resistance ( ohm) watts loss at 100% rated current (w) watts loss at 80% rated current (w) total clearing i 2 t (a 2 s ) 20 k a dc ac dc 2 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.237 1.59 0.85 5 2.5 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.185 1.84 1.24 7.5 3 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.11 1.50 0.82 7.9 3.5 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.581 1.17 0.61 26 4 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.06127 1.49 0.84 23 5 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.04086 1.47 0.86 43 6 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.0281 1.35 0.77 80 8 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.0178 1.61 0.91 199 10 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.0125 1.76 1.00 401 12 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.00993 1.97 1.11 642 15 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.00799 2.28 1.38 505 20 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.0045 2.81 1.57 1313 25 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.00353 2.98 1.75 2371 30 1000 C 20 ka 10-12 awg (6-4 mm 2 ) 0.00284 3.92 2.13 2679 littelfuse.com ? 2015 littelfuse powr-gard ? products rev: 030915 powr-gard ? fuse datasheet
3 of 3 1000 900 800 700 600 500 1000 900 800 700 600 500 1000 900 800 700 600 500 400 300 200 100 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 9 8 7 6 5 4 3 2 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 0 . 1 - 2 a 500 400 300 200 100 9 0 8 0 7 0 500 400 300 200 100 9 0 8 0 7 0 - 2.5a - 3 a - 3.5a - 4 a - 5 a - 6 a 6 0 5 0 4 0 3 0 2 0 1 0 9 6 0 5 0 4 0 3 0 2 0 1 0 9 - 8 a - 10a - 12a 9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 2 time i n seconds 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 0 . 1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0 . 1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.02 0.01 1000 900 800 700 600 500 400 300 200 100 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 9 8 7 6 5 4 3 2 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 0 . 1 current i n a mp eres basis for data: test voltage: 1000v t i me constant/ po w er factor: f use catalog number: draw n by: date: revision: draw i n g n o.: sheet time cu rrent cha ra cteristic cu rves li ttelf u se, inc. chicago, il . usa lll 08/10/2012 c 2 of 2 fcc01-spfi000 spfi 2 a - 30a - da t a ge ne ra t e d in e x cel - 1000 900 800 700 600 500 1000 900 800 700 600 500 1000 900 800 700 600 500 400 300 200 100 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 9 8 7 6 5 4 3 2 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 0 . 1 500 400 300 200 100 9 0 8 0 7 0 500 400 300 200 100 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 9 6 0 5 0 4 0 3 0 2 0 1 0 9 - 15a - 20a - 25a - 30a 9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 2 time i n seconds 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 0 . 1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0 . 1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.02 0.01 1000 900 800 700 600 500 400 300 200 100 9 0 8 0 7 0 6 0 5 0 4 0 3 0 2 0 1 0 9 8 7 6 5 4 3 2 1 0 . 9 0 . 8 0 . 7 0 . 6 0 . 5 0 . 4 0 . 3 0 . 2 0 . 1 current i n a mp eres basis for data: test voltage: 1000v t i me constant/ po w er factor: f use catalog number: draw n by: date: revision: draw i n g n o.: sheet time cu rrent cha ra cteristic cu rves li ttelf u se, inc. chicago, il . usa lll 08/10/2012 c 2 of 2 fcc01-spfi000 spfi 2 a - 30a - da t a ge ne ra t e d in e x cel - time current curve (2-12 a) time current curve (15-30 a) electrical specifcation agency requirements -60c -40c -20c 0c 20c 40c 60c 80c 100c 120c 140c -76f -40f -4f 32f 68f 104f 140f 176f 212f 248f 284f ambient tempera ture 60 40 20 0 percent of upra ting 0 20 40 60 per cent of dow nra tin g temperature rerating curve (temperature of air immediately surrounding fuse) amperage rating opening time (minutes) 100% of amp rating per ul 113% of amp rating per iec 135% of amp rating per ul 145% of amp rating per iec 200% of amp rating per ul 2-30 temperature stabilization 60 min 60 max 60 max 4 max spfi series in-line solar fuse littelfuse.com ? 2015 littelfuse powr-gard ? products rev: 030915 powr-gard ? fuse datasheet
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