POWR-GARD® Blocks and Holders Datasheet SPFR Series and SPFRHV Series SPFR 1000 VDC Solar Fuse Specifications Voltage Rating: Ampere Rating: Interrupting Rating: Fuse Type: Approvals: 1000 VDC 250, 300, 350, 400 10,000 A; Time Constant less than 1 ms Fast-acting UL 248 Recognized (File: 71611) CSA Certified (File: 29862) Ordering Information AMPERAGE PART Number ORDERING NUMBER 250 SPFR 250 SPFR250.X 300 SPFR 300 SPFR300.X 350 SPFR 350 SPFR350.X 400 SPFR 400 Description The SPFR series was designed to meet the growing needs of the solar industry with higher amperage and voltage requirements. It was developed specifically for solar applications, ranging from 250 A to 400 A. Web Resources Applications Features/Benefits Littelfuse.com/spfr Dimensions mm (inches) • DC Voltage rating meets European system requirements and North American utility scale requirements • Multiple amperage ratings • UL Class H Dimensions • Full Range Protection SPFRHV 1000 VDC Fuse Block Description SPFR400.X 298.806 ± 0.78 (11.764 ± 0.032) 189.941 ± 0.77 (7.478 ± 0.032) The Littelfuse SPFRHV fuse block is designed to hold Littelfuse high amperage (250-400 A) SPFR fuses. Dimensions mm (inches) Specifications Voltage Rating: Amperage Rating: Approvals: Environmental: Downloadable CAD drawings and other technical information: • Solar Inverters • High-amperage combiner boxes 1000 VDC 250 - 400 A UL 4248 Recognized (File: E14721) CSA (File: 29862) RoHS Compliant Ordering Information ORDERING Number AMPERAGE SPFRHV4001ST 250 – 400 Web Resources Downloadable CAD drawings and other technical information: 1 of 1 Littelfuse.com/spfrhv Littelfuse.com © 2013 Littelfuse POWR-GARD® Products Rev: 071013 ®