SPXI SERIES IN-LINE SOLAR FUSE TO ff gPVW Specifications Voltage Rating Amperage Rating Interrupting Ratings Time Constant Material Approvals 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 248-19 for photovoltaic applications. The SPXI can be electrically insulated by either overmolding or using heat-shrink. Features/Benefits ■ UL 248-19 Recognized ■ Meets IEC 60269-6 electrical performance requirements ■ 50,000 A interrupting rating No fuse holder required Applications Photovoltaic wire harness Recommended Crimping Tool SPXI and SPXI-M: T&B Sta-Kon ERG4002 SPXI-B and SPXI-BM: T&B Sta-Kon ERG4 Environmental Country of Origin US Patent 1500Vdc 2.5, 3.5, 4, 4.5, 5, 6, 8, 10, 12, 15, 20, 25, 30, 32 A SPXI and SPXI-B: 30 kA SPXI-M and SPXI-BM: 50 kA < 1ms Body: Melamine Caps: copper alloy (nickel plated) SPXI and SPXI-B: UL 248-19 Recognized SPXI-M and SPXI-BM: UL Pending (File: E339112) RoHS Compliant REACH Mexico 9,564,281 Part Numbering System SPXI xxx Refer to Amp Code Column in Ordering Information Table Web Resources XB Options Blank = 10-12 AWG XB = 8 AWG (2.5-20A) XM = 10-12 AWG (25-32 A) XBM = 8 AWG (25-32 A) Download additional technical information and view the complete solar portfolio: Littelfuse.com/spxi Littelfuse' Expertise Applied | Answers Delivered 1 of 11

POWR-GARD® Fuse Datasheet 81.41 (3.205) SPXI SERIES IN-LINE SOLAR FUSE 3.56 (0.140) SPXI-B SPXI-B Dimensions mm (in) Dimensions mm (in)

SPXI SERIES IN-LINE SOLAR FUSE SPXI and SPXI-M Ordering Information

SPXI SERIES IN-LINE SOLAR FUSE SPXI-B and SPXI-BM Ordering Information SERIES AMPERAGE AMPERE CODE CATALOG NUMBER PRODUCT MARKING PACK QUANTITY ORDERING NUMBER UPC

SPXI SERIES IN-LINE SOLAR FUSE SPXI and SPXI-M Electrical Specifications

SPXI-B and SPXI-BM Electrical Specifications

POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Time Current Curve MELTING (PRE‐ARCING) TIME IN SECONDS PROSPECTIVE R.M.S CURRENT IN AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: LLL DATE: 09/12/2013 REVISION: D TIME CURRENT CHARACTERISTIC CURVES - THIS DATA IS GENERATED IN EXCEL -

POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Time Current Curve MELTING (PRE‐ARCING) TIME IN SECONDS PROSPECTIVE R.M.S CURRENT IN AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: LLL DATE: 09/12/2013 REVISION: D TIME CURRENT CHARACTERISTIC CURVES - THIS DATA IS GENERATED IN EXCEL -

POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Time Current Curve MELTING (PRE‐ARCING) TIME IN SECONDS PROSPECTIVE R.M.S CURRENT IN AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: LLL DATE: 09/12/2013 REVISION: D TIME CURRENT CHARACTERISTIC CURVES - THIS DATA IS GENERATED IN EXCEL -

POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Time Current Curve MELTING (PRE-ARCING) TIME IN SECONDS PROSPECTIVE R.M.S CURRENT IN AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: LLL DATE: 09/12/2013 REVISION: E TIME CURRENT CHARACTERISTIC CURVES - THIS DATA IS GENERATED IN EXCEL -

POWR-GARD® Fuse Datasheet SPXI SERIES IN-LINE SOLAR FUSE Time Current Curve MELTING (PRE‐ARCING) TIME IN SECONDS PROSPECTIVE R.M.S CURRENT IN AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: DRAWN BY: LLL 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 DATE: 07/31/2019 products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer....