POWR-GARD® Fuse SPXC-S Series Specifications Voltage Rating Amperage Rating Interrupting Rating Time Constant Material Approvals Applicable Standards The Littelfuse SPXC-S silver plated solar string fuse is designed specifically for 1-4 A 1500 V dc applications. Full range, fast-acting fuse helps eliminate common lowoverload faults 10 x 57 mm package size Up to 50,000A interrupting rating Part Numbering System SPXC xxx T XS 1500 V dc 1, 2, 2.25, 2.5, 3, 3.5, 4 A 15 kA (UL 248-19) 50 kA (Self-Certified) ≤ 1ms Body: Melamine Caps: Copper Alloy (Silver Plated) UL Listed US-CA (File: E339112) UL 248-1, 248-19 IEC 60269-6 (electrically only) RoHS Compliant REACH Mexico Plating XS = Silver Plated Inverters Combiner boxes Refer to Amp Code Column in Electrical Specifications Table Web Resources Download technical documents: Littelfuse.com/spxc-s For additional product information, contact Littelfuse Technical Support at 1-800-TEC-FUSE or [email protected] REVISION DESCRIPTION PRELIMINARY DRAWING MRY 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 MUST BE WITHIN THE DIMENSIONAL LIMITATIONS SHOWN ON DRAWING AND INITIALLY LOCATED TO ALLOW FOR MAXIMUM TOOL LIFE. FINISH SCALE ©2025 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/29/2025

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Time Current Curve (2.25-4 A) Temperature Rerating Curve (Temperature of Air Immediately Surrounding Fuse) 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. Expertise Applied | Answers Delivered 3 of 3 Specifications are subject to change without notice.