Special Purpose Fuses LA15QS Semiconductor Fuses 150 VAC • Very Fast Acting • 1 – 6000 Amperes Littelfuse LA15QS series Semiconductor fuses were designed for the specific protection of diodes and other semiconductor devices rated 150VAC/DC. The LA15QS product line compact design is perfect for those applications that have limitations on available space. Features • Low I2t minimizes damage to protected components on short-circuit. • Controlled arc voltage reduces stress to circuit components during fuse clearing. • Choice of mounting types provides options for unique termination requirements. • Indicator options allow identification of blown fuses. Applications Protection of heavy duty devices such as electromechanical rectifiers. Ordering Information LA 15 QS 400 -4 TI Littelfuse Special Purpose Fuses Voltage (150) Style Ampere Rating Mounting Type Ferrule Ferrule, midget dim. Blades/Bolt-in Hockey Puck, bolt-in 1 2 4 128 Integral BlownFuse Indicator Trigger Indicator Trigger Actuator TI IL Note: Mounting types and integral blown fuse indicators are optional for specified ratings. Specifications Contact Littelfuse for characteristic curves. 88 Voltage Rating: Interrupting Rating: Ampere Range: Approvals: www.littelfuse.com AC: 150 volts DC: 150 volts 100,000 Amperes 1 – 6000 Amperes UL Recognized under the components program. © 2005 Littelfuse • POWR-GARD™ Products Catalog Special Purpose Fuses LA15QS Semiconductor Fuses 150 VAC • Very Fast Acting • 1 – 6000 Amperes Catalog Numbers & Technical Data Maximum Watts Loss @ Ampere Littelfuse Mounting Clearing I2 t @150 Rated Current Rating Catalog Number Type VAC (A 2S x 10 3) (W) LA15QS1-2 LA15QS2-2 LA15QS3-2 LA15QS4-2 LA15QS5-2 LA15QS6-2 LA15QS7-2 LA15QS8-2 LA15QS10-2 LA15QS12-2 LA15QS15-2 LA15QS20-2 LA15QS25-2 LA15QS30-2 LA15QS35-1 LA15QS40-1 LA15QS40-4TI LA15QS45-1 LA15QS50-1 LA15QS50-4 LA15QS55-1 LA15QS60-1 LA15QS70-4 LA15QS70-4TI LA15QS80-4 LA15QS80-4TI LA15QS90-4 LA15QS100-4 LA15QS100-4TI LA15QS130-4 LA15QS130-4TI LA15QS150-4 LA15QS150-4IL LA15QS150-4TI LA15QS200-4 LA15QS200-4IL LA15QS250-4 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 4TI 1 1 4 1 1 4 4TI 4 4TI 4 4 4TI 4 4TI 4 4IL 4TI 4 4IL 4 0.0002 0.001 0.003 0.007 0.012 0.022 0.011 0.015 0.019 0.030 0.042 0.072 0.14 0.25 0.21 0.28 0.39 0.34 0.47 0.64 Contact Factory 0.94 2 2 2.5 2.5 3.1 3.6 3.6 5.3 5.3 6.8 6.8 6.8 9 9 15 Figure 1 0.68 1.3 1.7 2.1 2.8 3.1 2.2 2.5 2.6 3 3 4 5.2 5.6 9 10 3.1 12 13 4 Contact Factory 14 5.6 5.6 8 8 9 10 10 14 14 16 16 16 22 22 22 250 300 300 300 350 350 400 400 400 450 450 500 500 600 600 800 1000 1000 1000 1000 1000 1200 1200 1500 1500 2000 2000 2500 2500 3000 3000 3500 4000 4000 5000 6000 LA15QS250-4TI LA15QS300-4 LA15QS300-4IL LA15QS300-4TL LA15QS350-4 LA15QS350-4TI LA15QS400-4 LA15QS400-4IL LA15QS400-4TI LA15QS450-4 LA15QS450-4IL LA15QS500-4 LA15QS500-4IL LA15QS600-4 LA15QS600-4IL LA15QS800-4 LA15QS1000-4 LA15QS1000-4IL LA15QS1000-4TI LA15QS1000-128 LA15QS1000-128IL LA15QS1200-128 LA15QS1200-128IL LA15QS1500-128 LA15QS1500-128IL LA15QS2000-128 LA15QS2000-128IL LA15QS2500-128 LA15QS2500-128IL LA15QS3000-128 LA15QS3000-128IL LA15QS3500-128 LA15QS4000-128 LA15QS4000-128IL LA15QS5000-128 LA15QS6000-128 Figure 2 Figure 4 4TI 4 4IL 4TI 4 4TI 4 4IL 4TI 4 4IL 4 4IL 4 4IL 4 4 4IL 4TI 128 128IL 128 128IL 128 128IL 128 128IL 128 128IL 128 128IL 128 128 128IL 128 128 15 22 22 22 32 32 40 40 40 50 50 90 90 130 130 290 520 520 520 540 540 680 680 1200 1200 1900 1900 3200 3200 4800 4800 6500 8500 8500 Contact Factory Contact Factory 27 33 33 33 40 40 45 45 45 50 50 30 30 35 35 57 75 75 75 88 88 100 100 130 130 165 165 195 195 240 240 260 270 270 Contact Factory Contact Factory Special Purpose Fuses 1 2 3 4 5 6 7 8 10 12 15 20 25 30 35 40 40 45 50 50 55 60 70 70 80 80 90 100 100 130 130 150 150 150 200 200 250 Maximum Watts Loss @ Ampere Littelfuse Mounting Clearing I2 t @150 Rated Current Rating Catalog Number Type VAC (A 2S x 10 3) (W) Figure 3 Figure 5 Figure 6 Figure 7 Figure 8 Dimensions Dimensions for reference only. Amperes Mount. Type Fig. No. 1 – 30 35 – 60 70 – 450 500 – 1000 750 – 2000 2500 – 3000 3500 – 4000 5000 – 6000 2 1 4, 4TI*, 4IL* 4, 4TI*, 4IL* 128, 128IL* 128, 128IL* 128, 128IL* 128 1 1 2, 3* 2, 3* 4, 5* 4, 5* 6, 7* 8 A 1.50 2.00 2.66 3.50 1.88 1.88 1.88 2.38 (38.1) (50.8) (67.6) (88.9) (47.9) (47.9) (47.9) (60.5) Dimensions in Inches (mm in parentheses) C D E F B 0.41 (10.4) 0.81 (20.6) 1.13 (28.7) 1.50 (38.1) 2.00 (50.8) 3.00 (76.2) 3.50 (88.9) 5.75 (146) – – 1.16 (29.5) 1.25 (31.8) 1.63 (41.4) 1.63 (41.4) 1.63 (41.4) 1.88 (47.7) – – 2.19 (55.6) 2.56 (65.0) 1.75 (44.5) 2.50 (63.5) 3.00 (76.2) 5.00 (127) – – 1.91 (48.5) 1.94 (49.3) 1.00 (25.4) 1.50 (38.1) 1.06 (27.0) 1.50 (38.1) – – 0.31 (7.9) 0.41 (10.4) – – 1.06 (27.0) 1.50 (38.1) G H – – 0.88 (22.4) 1.00 (25.4) – – – – – – 0.19 (4.8) 0.25 (6.4) – – – – Tap – – – – 3 ⁄ 8 -24-1⁄2 deep 1 ⁄2 -20-1⁄ 2 deep 1 ⁄2 -20-1⁄2 deep 1 ⁄2 -20-1⁄ 2 deep * Optional Trigger Actuator (IL) © 2005 Littelfuse • POWR-GARD™ Products Catalog www.littelfuse.com 89