POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE 1500 Vdc • 2.5-30 A (Patent Pending) Specifications Voltage Rating: 1500 Vdc Amperage Rating: 2.5, 3.5, 4, 6, 8, 10, 12, 15, 20, 25, 30 A Interrupting Ratings: 15 kA (UL 2579) 30 kA (Self-Certified) 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 Description Part Numbering System The Littelfuse SPXI 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 SPXI can be electrically insulated by either overmolding or using approved heat-shrink. SPXI xxx T Series Amp Code Features/Benefits • • • • Package Quantity Refer to Amp Code Column in Ordering Information Table UL 2579 Recognized Meets IEC 60269-6 electrical performance requirements 30,000 A interrupting rating No fuse holder required SERIES AMP SPXI SPXI SPXI Applications • Photovoltaic wire harness T = 10 L = 50 PACKAGE QUANTITY CATALOG NUMBER ORDERING NUMBER 10 10 50 SPXI03.5 SPXI004 SPXI020 SPXI03.5T SPXI004.T SPXI020.L 3.5 4 20 Recommended Crimping Tool Web Resources T&B Sta-Kon ERG4002 or equivalent Weidmüller HTN 21 or equivalent Download additional technical information and view the complete solar portfolio: littelfuse.com/spxi Dimensions mm (in) 81.41 (3.205) 2.5-4 A 3.56 (0.140) 12.26 (0.483) 6-20 A 3.56 (0.140) 25-30 A littelfuse.com 3.56 (0.140) 12.26 (0.483) 12.26 (0.483) 110.06 (4.333) 110.06 (4.333) 1 of 4 9.53 (0.375) 5.59 (0.220) 9.53 (0.375) 9.53 (0.375) 10.31 (0.406) 5.59 (0.220) 5.59 (0.220) 10.31 (0.406) 13.72 (0.540) © 2015 Littelfuse POWR-GARD® Products Rev: 022315 POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Ordering Information SERIES AMPERAGE AMP CODE CATALOG NUMBER PRODUCT MARKING SPXI 2.5 02.5 SPXI02.5 SPXI 2 1/2 A SPXI 3.5 03.5 SPXI03.5 SPXI 3 1/2 A SPXI 4 004. SPXI004 SPXI 4 A SPXI 6 006. SPXI006 SPXI 6 A SPXI 8 008. SPXI008 SPXI 8 A SPXI 10 010. SPXI010 SPXI 10 A SPXI 12 012. SPXI012 SPXI 12 A SPXI 15 015. SPXI015 SPXI 15 A SPXI 20 020. SPXI020 SPXI 20 A SPXI 25 025. SPXI025 SPXI 25 A SPXI 30 030. SPXI030 SPXI 30 A PACK QUANTITY ORDERING NUMBER UPC 10 50 10 50 10 50 10 50 10 50 10 50 10 50 10 50 10 50 10 50 10 50 SPXI02.5T SPXI02.5L SPXI03.5T SPXI03.5L SPXI004.T SPXI004.L SPXI006.T SPXI006.L SPXI008.T SPXI008.L SPXI010.T SPXI010.L SPXI012.T SPXI012.L SPXI015.T SPXI015.L SPXI020.T SPXI020.L SPXI025.T SPXI025.L SPXI030.T SPXI030.L 07945880950 07945880949 07945880808 07945880149 07945884508 07945884509 07945882658 07945882659 07945882660 07945882661 07945882662 07945882663 07945882664 07945882665 07945882666 07945882667 07945882556 07945882557 07945883059 07945883060 07945883061 07945883062 Electrical Specifications AMPERAGE VOLTAGE INTERRUPTING RATING DC AC DC* 2.5 1500 – 30 kA 3.5 1500 – 30 kA 4 1500 – 30 kA 6 1500 – 30 kA 8 1500 – 30 kA 10 1500 – 30 kA 12 1500 – 30 kA 15 1500 – 30 kA 20 1500 – 30 kA 25 1500 – 30 kA 30 1500 – 30 kA WIRE RANGE CU Only (Solid/Stranded) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) 10-12 AWG (6-4 mm2) NOM COLD RESISTANCE (ohm) WATTS LOSS AT 100% RATED CURRENT (W) WATTS LOSS AT 80% RATED CURRENT (W) MELTING I2t (A2 s) 15 kA (1500VDC) TOTAL CLEARING I2t (A2 s) 15 kA (1500VDC) 0.099 0.86 0.48 7 16 0.0711 1.56 0.81 25 50 0.0438 0.95 0.54 57 95 0.0576 3.05 1.71 49 75 0.0349 3.26 1.84 121 214 0.0223 3.25 1.82 407 509 0.0163 3.34 1.89 798 951 0.0131 5.27 3.05 299 637 0.0085 5.38 3.14 701 1464 0.0066 6.28 3.55 2209 2548 0.0055 7.60 4.25 3561 4010 * 15 kA per UL 2579 littelfuse.com 2 of 4 © 2015 Littelfuse POWR-GARD® Products Rev: 022315 POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Temperature Rerating Curve (Temperature of Air Immediately Surrounding Fuse) 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 60 Min 60 Max 60 Max 4 Max Temperature 2.5-30 Stabilization PERCENT OF UPRATING AMPERAGE RATING Electrical Specification — Agency Requirements 60 40 20 0 20 40 60 -60˚ C -76˚ F -40˚ C -40˚ F -20˚ C -4˚ F 0˚ C -32˚ F 20˚ C 68˚ F 40˚ C 104˚ F 60˚ C 140˚ F 80˚ C 176˚ F 100˚ C 212˚ F 120˚ C 248˚ F PERCENT OF DOWNRATING 0 140˚ C 284˚ F AMBIENT TEMPERATURE Time Current Curves 1000 900 800 700 600 500 400 400 400 300 300 200 200 200 100 90 80 70 60 50 100 90 80 70 60 50 100 90 80 70 60 50 100 90 80 70 60 50 40 40 40 40 30 30 30 30 20 20 20 20 10 9 8 7 6 5 10 9 8 7 6 5 10 9 8 7 6 5 10 9 8 7 6 5 4 4 4 4 3 3 3 3 2 2 2 2 - 2-1/2A 300 - 4A TIME IN SECONDS 1000 900 800 700 600 500 400 TIME IN SECONDS 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 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 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 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 1000 900 800 700 600 500 1000 900 800 700 600 500 300 - 3-1/2A 200 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 CHICAGO, IL. USA 3 TEST VOLTAGE: SPXI 2.5A - 4A LITTELFUSE, INC. 2 CURRENT IN AMPERES FUSE CATALOG NUMBER: BASIS FOR DATA: littelfuse.com TIME CURRENT CHARACTERISTIC CURVES 1 0.9 0.8 0.7 0.6 0.5 TIME CONSTANT/POWER FACTOR: 0.4 0.3 0.2 0.1 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 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 IN AMPERES TEST VOLTAGE: - THIS DATA IS GENERATED IN EXCEL - FCC01-SPXI FUSE CATALOG NUMBER: SPXI 2.5A - 3.5A BASIS FOR DATA: DRAWN BY: LLL DATE: 09/12/2013 REVISION: B DRAWING NO.: TIME CONSTANT/POWER FACTOR: LITTELFUSE, INC. SHEET 2 OF 3 3 of 4 CHICAGO, IL. USA DRAWN BY: LLL DATE: 09/12/2013 REVISION: A © 2015 Littelfuse POWR-GARD TIME CURRENT CHARACTERISTIC CURVES FCC01-SPXI DRAWING NO.: - THIS DATA IS GENERATED IN EXCEL - ® Products Rev: 022315 SHEET 3 OF 3 POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Time Current Curves 10 9 8 7 6 5 4 4 3 3 2 2 TIME IN SECONDS TIME IN SECONDS 10 9 8 7 6 5 1000 900 800 700 600 500 1000 900 800 700 600 500 400 400 300 300 200 200 100 90 80 70 60 50 100 90 80 70 60 50 40 40 30 30 20 20 10 9 8 7 6 5 10 9 8 7 6 5 20 A 15 A 4 4 3 3 2 2 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.01 0.01 0.01 0.01 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 90 80 70 60 50 40 30 CURRENT IN AMPERES 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 90 80 70 60 50 40 30 20 10 1000 900 800 700 600 500 1000 900 800 700 600 500 400 400 300 300 200 200 100 90 80 70 60 50 20 10 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 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 IN AMPERES TIME IN SECONDS 100000 90000 80000 70000 60000 50000 20 40000 20 30000 30 20000 40 30 10000 9000 8000 7000 6000 5000 40 4000 6A 3000 100 90 80 70 60 50 2000 8A 100 90 80 70 60 50 1000 900 800 700 600 500 10 A 400 200 300 200 200 300 12 A 100 90 80 70 60 50 400 300 40 400 30 1000 900 800 700 600 500 20 10 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 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 1000 900 800 700 600 500 100 90 80 70 60 50 - 30A - 25A 40 40 30 30 20 20 10 9 8 7 6 5 10 9 8 7 6 5 4 4 3 3 2 2 1 0.9 0.8 0.7 0.6 0.5 1 0.9 0.8 0.7 0.6 0.5 0.4 0.4 0.3 0.3 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.04 0.03 0.03 0.02 0.02 0.01 0.01 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 90 80 70 60 50 40 30 20 10 CURRENT IN AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: SPXI 2.5A - 30A BASIS FOR DATA: littelfuse.com LITTELFUSE, INC. CHICAGO, IL. USA DRAWN BY: LLL DATE: 09/12/2013 REVISION: B TIME CURRENT CHARACTERISTIC CURVES - THIS DATA IS GENERATED IN EXCEL - DRAWING NO.: FCC01-SPXI 4 of 4 SHEET 4 OF 4 © 2015 Littelfuse POWR-GARD® Products Rev: 022315