Semiconductor Fuse Blocks SPECIFICATIONS Voltage rating: LSCR001: Accepts fuses 1” diameter or less at 600V. Also accepts 13⁄16" diameter fuses at 700 — 1000V. LSCR002: Accepts fuses up to 3" diameter at 1000V. Ampere ratings: LSCR001: 1 – 400 ampere capacity. LSCR002: 70 – 800 ampere capacity. Approvals: UL Recognized (File No. E14721) Stud Size: LSCR001: 1/4 - 20 thread (Torque: 61 In. LBS.) LSCR002: 3/8 - 16 thread (Torque: 192 In. LBS.) Base: Molded phenolic. 150° C temperature rating. Modular-designed Semiconductor fuse blocks are designed to accommodate a wide range of Semiconductor fuses, with a maximum diameter of 3". This modular design greatly reduces inventory requirements. They are sold in pairs and are constructed of molded phenolic, with plated steel studs. Terminal construction: Plated steel. Supplied with nut and belleville washer. LSCR001 LSCR002 Semiconductor fuse block selection guide Semiconductor fuse block selection guide RECOMMENDED FUSES Semiconductor fuses. See tables below. Fuse Series Ampere Rating Fuse Series Ampere Rating L15S 70 – 400 L15S 500 – 800 L25S L25S 35 – 60 70 – 200 L25S L25S 225 – 700 800 L50S L50S L50S 35 – 60 70 – 100 125 – 200 L50S L50S L50S 225 – 400 450 – 600 700 – 800 L60S L60S L60S 35 – 60 70 – 100 125 – 200 L60S L60S L60S 225 – 400 450 – 600 700 – 800 L70S L70S 35 – 60 70 – 100 KLC KLC 1 – 30 35 – 60 L70S L70S L70S 125 – 200 225 – 400 450 – 800 KLC KLC KLC KLC 70 – 125 – 225 – 450 – LSCR001 1.88" 1.30" .70" 100 200 400 800 LSCR002 2.13" .203"X.30" SLOT .203" X .30" SLOT 1.60" 1.00" .70" 1.00" .50" 1/4-20"X1.00" USABLE LENGTH .50" .75" 3/8-16"X1.00" USABLE LENGTH 3.44" 2.38" 2.44" 1.34" .25" .50" .25" LSCR001 LSCR0022 131 Semiconductor Fuse Blocks SPECIFICATIONS Voltage Rating: 600 Volts Ampere Range: 1 – 600 amperes Approvals: UL Recognized under the components program Insulator Base: 150° C general purpose phenolic Box Lug Terminal: Tin plated aluminum NEW ORDERING INFORMATION Littelfuse Ampere Catalog No. Rating Littelfuse’s 1LS series modular style semiconductor fuse blocks accommodate a wide range of semiconductor fuses. Blocks are provided in pairs with fuse mounting hardware. ■ ■ ■ ■ ■ 100A 400A 250MCM - #6 CU/AL 275 IN. LBS. UL Recognized 1LS103 400A 250MCM - #6 CU/AL 275 IN. LBS. UL Recognized 1LS104 600A 500MCM - #6 CU/AL 375 IN. LBS. UL Recognized 1LS108 400A 250MCM - #6 CU/AL 275 IN. LBS. Self-Certified 1LS109 400A 250MCM - #6 CU/AL 275 IN. LBS. Self-Certified 1LS110 400A 250MCM - #6 CU/AL 275 IN. LBS. Self-Certified 1LS102 Dimensions for reference only. 132 Approvals 1LS102 DIMENSIONS #2/0 - 14 CU/AL Torque Rating 1LS101 2-piece modular design General purpose phenolic base Tin plated aluminum box lugs Dove-tailed interlocking feature (1LS101 only) Hex-head bolts and Belleville washers provided 1LS101 Wire Range 120 IN. LBS. UL Recognized Semiconductor Fuse Blocks DIMENSIONS 1LS103 1LS104 1LS108 1LS109 1LS110 Dimensions for reference only. 133