Special Purpose Fuses Semiconductor Fuses 150 - 1300 VAC * Very Fast Acting * 1 - 6000 Amperes Semiconductor Fuses Littelfuse Semiconductor fuses are very fast acting fuses designed specifically for the protection of diodes, thyristors, triacs, and other solid-state power semiconductor devices. These fuses are used in power electronic applications including variable speed drives, power rectifiers, UPS systems, and DC power supplies. They can be used wherever extremely fast acting, current-limiting fuses are needed to provide superior protection against the potentially damaging effects of short-circuit currents. The extensive line of Littelfuse Semiconductor fuses includes the traditional round body fuses, enhanced state-of-the-art round body fuses, and North American style square body fuses. Available ratings range from 150 to 1300 volts and up to 6000 amps. Applications Semiconductor fuses are designed specifically for supplementary protection of semiconducting devices such as silicon controlled rectifiers (SCR's), diodes, thyristors, triacs, transistors, and similar solid-state devices. These devices are used in power equipment including variable speed drives, power rectifiers, UPS systems, DC power supplies, and in a wide range of electronic equipment. May be used wherever extremely fast acting, current-limiting fuses with no time-delay are required. Special Purpose Fuses Features & Benefits * Extremely current-limiting * Low I2t and peak let-through currents * Low watts loss * High Interrupting ratings * UL Recognized * Wide range of ampere ratings * Optional mounting types * DC ratings * Superior cycling abilities * Compact sizes * Optional blown fuse indicators Ratings 150V: 250V: 300V: 500V: 600V: 700V: 1000V: 1200V: 1300V: 1 - 6000A 1 - 4500A 35 - 4500A 10 - 1200A 1 - 2000A 6 - 2500A 15 - 1000A 1 - 30A 50 - 1800A Recommended Fuse Blocks: LSCR and 1LS series: Refer to the Blocks & Holders section of this catalog for additional information. 84 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses Traditional Semiconductor Fuses 150/250/500/600/700 VAC * Very Fast Acting * 1 - 1200 Amperes Specifications Series & Voltage Ampere Ratings L25S* 150V AC 250V AC 150V DC (1 - 60A) 250V DC (1 - 200A) 100V DC (70 - 1000A) 200V DC (225 - 800A) L15S 1 L15S 2 L15S 3 L15S 4 L15S 5 L15S 6 L15S 7 L15S 8 L15S 9 L15S 10 L15S 12 L15S 15 - L15S 20 L15S 25 L15S 30 L15S 35 L15S 40 L15S 45 L15S 50 L15S 60 L15S 70 L15S 80 L15S 90 L15S 100 - L15S 125 L15S 150 - L15S 200 - L15S 250 - L15S 300 L15S 350 L15S 400 L15S 450 L15S 500 - L15S 600 - L15S 800 - L15S 1000 - L25S 1 L25S 2 L25S 3 L25S 4 L25S 5 L25S 6 - L25S 8 - L25S 10 L25S 12 L25S 15 - L25S 20 L25S 25 L25S 30 L25S 35 L25S 40 L25S 45 L25S 50 L25S 60 L25S 70 L25S 80 L25S 90 L25S 100 - L25S 125 L25S 150 L25S 175 L25S 200 L25S 225 L25S 250 L25S 275 L25S 300 L25S 350 L25S 400 L25S 450 L25S 500 - L25S 600 L25S 700 L25S 800 - - - L50S L70S* 500V AC 450V DC L60S KLC 600V AC 600V AC 700V AC 650V DC - - - - - - - - - L50S 10 L50S 12 L50S 15 - L50S 20 L50S 25 L50S 30 L50S 35 L50S 40 - L50S 50 L50S 60 L50S 70 L50S 80 L50S 90 L50S 100 - L50S 125 L50S 150 L50S 175 L50S 200 L50S 225 L50S 250 L50S 275 L50S 300 L50S 350 L50S 400 L50S 450 L50S 500 L50S 550 L50S 600 L50S 700 L50S 800 LA50P9004 LA50P10004 LA50P12004 L60S 1 L60S 2 L60S 3 L60S 4 L60S 5 L60S 6 - L60S 8 - L60S 10 L60S 12 L60S 15 L60S 17 12 L60S 20 L60S 25 L60S 30 L60S 35 L60S 40 L60S 45 L60S 50 L60S 60 L60S 70 L60S 80 L60S 90 L60S 100 - L60S 125 L60S 150 L60S 175 L60S 200 L60S 225 L60S 250 - L60S 300 L60S 350 L60S 400 L60S 450 L60S 500 - L60S 600 L60S 700 L60S 800 - - - KLC 1 KLC 2 KLC 3 KLC 4 KLC 5 KLC 6 KLC 7 KLC 8 - KLC 10 KLC 12 KLC 15 KLC 17 1 2 KLC 20 KLC 25 KLC 30 KLC 35 KLC 40 KLC 45 KLC 50 KLC 60 KLC 70 KLC 80 KLC 90 KLC 100 KLC 110 KLC 125 KLC 150 KLC 175 KLC 200 KLC 225 KLC 250 - KLC 300 KLC 350 KLC 400 KLC 450 KLC 500 - KLC 600 KLC 700 KLC 800 - - - - - - - - - - - - L70S 10 - L70S 15 - L70S 20 L70S 25 L70S 30 L70S 35 L70S 40 - L70S 50 L70S 60 L70S 70 L70S 80 L70S 90 L70S 100 - L70S 125 L70S 150 L70S 175 L70S 200 L70S 225 L70S 250 - L70S 300 L70S 350 L70S 400 L70S 450 L70S 500 - L70S 600 L70S 700 L70S 800 LA70P9004 LA70P10004 LA70P12004 Voltage Ratings: L15S: L25S: L50S: L60S: KLC: L70S: 150 V AC/DC (1 - 60A) 150 VAC (70 - 1000A) 100 VDC (70 - 1000A) 250 V AC/DC (1 - 200A) 250 VAC (225 - 800A) 200 VDC (225 - 800A) 500 VAC/450 VDC 600 VAC 600 VAC 700VAC/650VDC Interrupting Rating: AC: 200,000 rms amperes (L15S series 100,000A) DC: 20,000 amperes Ampere Range: 1 - 1200 amperes See Rating Table for ratings available in each series. Approvals: UL Recognized under the Components Program and CSA Recognized under the Component Acceptance Program. UL File No: E71611 CSA File No: LR29862 L25S series fuses are Littelfuse Certified for DC ratings shown in Rating Table. Special Purpose Fuses 1 2 3 4 5 6 7 8 9 10 12 15 17 12 20 25 30 35 40 45 50 60 70 80 90 100 110 125 150 175 200 225 250 275 300 350 400 450 500 550 600 700 800 900 1000 1200 L15S *For availability of RoHS compliant product, call 1-800-TEC-FUSE. KLC series fuses are recommended for replacement use only. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 85 Special Purpose Fuses Traditional Semiconductor Fuses 150/250/500/600/700 VAC * Very Fast Acting * 1 - 1000 Amperes L15S SERIES, 150 VOLTS AC (Replaces KLA, KLW, L13S) Ampere Rating Fig. No. 1 - 30 1 31 - 60 1 61 - 450 3 451 - 1000 3 Dimensions in Inches (mm in parentheses) A 112 (38.1) 2 (50.8) 1 5 32 (29.4) 114 (31.8) B -- -- 1 7 8 (47.6) 115 16 (49.2) C (9.5) 5 8 (15.9) 2 3 16 (55.6) 2 9 16 (65.1) D (10.3) 13 16 (20.6) 2 21 32 (67.5) 3 12 (88.9) 3 8 13 32 E F G H -- -- -- -- -- -- 1 (25.4) 112 (38.1) (17.1) 1 (25.4) 43 64 -- -- 5 16 (7.9) 13 32 (10.3) (4.8) 14 (6.4) G H 3 16 L25S SERIES, 250 VOLTS AC (Replaces KLB) Ampere Rating Fig. No. Special Purpose Fuses 1 - 30 1 31 - 60 2 61 - 200 3 201 - 700 3 701 - 800 3 Dimensions in Inches (mm in parentheses) A 2 (50.8) 15 8 (41.3) 15 8 (41.3) 119 32 (40.5) 119 32 (40.5) B -- 2 14 (57.2) 2 5 16 (58.7) 2 9 32 (57.9) 2 9 32 (57.9) C (12.7) 2 12 (63.5) 2 7 16 (61.9) 2 29 32 (73.8) 2 29 32 (73.8) D (14.3) 3 3 16 (81.0) 3 18 (79.4) 3 2732 (97.6) 3 2732 (97.6) 12 E 9 16 F -- -- (20.6) 1 732 (31.0) 112 (38.1) 2 (50.8) (18.3) 1 (25.4) 1 (25.4) 112 (38.1) 13 16 23 32 -- -- 11 32 (8.7) 5 16 (7.9) 13 32 (10.3) 13 32 (10.3) 18 (3.2) 3 16 (4.8) 14 (6.4) 14 (6.4) G H -- -- (8.7) 11 32 (8.7) 5 16 (7.9) 13 32 (10.3) 13 32 (10.3) 17 32 (13.5) 18 (3.2) 18 (3.2) 3 16 (4.8) 14 (6.4) 14 (6.4) 3 8 (9.5) L50S SERIES, 500 VOLTS AC / 450 VOLTS DC (Replaces KLH) Ampere Rating Fig. No. 10 - 30 1 31 - 60 2 61 - 100 3 101 - 200 3 201 - 400 3 401 - 600 3 601 - 800 3 A 2 (50.8) 15 8 (41.3) 2 18 (54.0) 2 18 (54.0) 2 3 32 (53.2) 2 732 (56.4) 2 732 (56.4) B -- 2 14 (57.2) 2 11 16 (68.3) 2 13 16 (71.4) 2 25 32 (70.6) 2 29 32 (73.8) 4 9 32 (108.7) Dimensions in Inches (mm in parentheses) C D E F 12 9 16 -- -- (12.7) (14.3) 13 16 23 32 2 12 3 3 16 (63.5) (81.0) (20.6) (18.3) 3 4 3 3 5 8 1 (76.2) (92.1) (25.4) (19.1) 2 15 16 3 5 8 1 732 1 (74.6) (92.1) (31.0) (25.4) 3 13 32 4 11 32 112 1 (86.5) (110.3) (38.1) (25.4) 17 32 15 32 3 4 2 112 (89.7) (113.5) (50.8) (38.1) 4 5 8 6 15 32 2 12 2 (117.5) (164.3) (63.5) (50.8) D Contact Littelfuse for characteristic curves. A Fig. 1 86 F G C www.littelfuse.com 11 32 A B C D E H Fig, 2 (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses Traditional Semiconductor Fuses 150/250/500/600/700 VAC * Very Fast Acting * 1 - 1000 Amperes L60S SERIES, 600 VOLTS AC Ampere Rating Fig. No. 1 - 30 1 31 - 60 2 61 - 100 2 101 - 200 2 201 - 400 2 401 - 600 2 601 - 800 2 A 5 (127.0) 2 25 32 (70.6) 2 29 32 (73.8) 2 29 32 (73.8) 2 29 32 (73.8) 2 7 8 (73.0) 3 1 32 (77.0) B -- 3 716 (87.3) 3 17 32 (89.7) 3 9 16 (90.5) 3 31 32 (100.8) 3 31 32 (100.8) 5 5 32 (133.4) Dimensions in Inches (mm in parentheses) C D E F 5 8 13 16 -- -- (15.9) (20.6) 13 16 23 32 3 11 16 4 3 8 (93.7) (111.1) (20.6) (18.3) 23 32 3 25 32 4 15 32 11 16 (96.0) (113.5) (27.0) (18.3) 3 3 4 413 32 15 16 1 (95.3) (111.9) (33.3) (25.4) 4 5 32 5 18 13764 1 (105.6) (130.2) (40.1) (25.4) 4 9 64 5 18 2 1 16 112 (105.2) (130.2) (52.8) (38.1) 5 11 32 7 14 2 12 2 (135.7) (184.2) (63.5) (50.8) G H -- -- (8.7) 11 32 (8.7) 5 16 (7.9) 13 32 (10.3) 13 32 (10.3) 17 32 (13.5) 18 (3.2) 18 (3.2) 3 16 (4.8) 14 (6.4) 14 (6.4) 3 8 (9.5 11 32 L70S SERIES, 700 VOLTS AC / 650 VOLTS DC Ampere Rating Fig. No. 10 - 30 1 3 61 - 100 3 101 - 200 3 201 - 400 3 401 - 600 3 601 - 800 F 4 B -- 3 716 (87.3) 3 9 16 (90.5) 3 1732 (89.7) 3 1732 (89.7) 4 29 32 (124.6) 5 5 16 (134.9) Dimensions in Inches (mm in parentheses) C D E F G 12 9 16 -- -- -- (12.7) (14.3) 43 64 11 32 3 25 32 4 3 8 1 (96.0) (111.1) (25.4) (17.1) (8.7) 29 32 5 16 3 11 16 4 3 8 1 732 (93.7) (111.1) (31.0) (22.9) (7.9) 13 32 4 5 32 5 3 32 1 12 1 (105.6) (129.4) (38.1) (25.4) (10.3) 13 32 4 5 32 5 3 32 2 11 2 (105.6) (129.4) (50.8) (38.1) (10.3) 17 32 5 1 4 7 3 32 2 12 2 (133.4) (180.2) (63.5) (50.8) (13.5) 5 8 6 13 16 2 7 8 2 -- (173.0) (73.0) (50.8) (15.9) H J -- -- (3.2) 3 16 (4.8) 14 (6.4) 14 (6.4) 3 8 (9.5) 3 8 (9.5) 18 -- Special Purpose Fuses 31 - 60 A 2 (50.8) 2 78 (73.0) 2 7 8 (73.0) 2 2732 (72.2) 2 2732 (72.2) 2 2732 (72.2) 3 5 16 (84.1) -- -- -- -- (7.9) 5 16 KLC SERIES, 600 VOLTS AC G H A B C D E Fig. 3 F G A B C J E H Fig. 4 Ampere Rating Fig. No. 1 - 30 2 31 - 60 2 61 - 100 3 101 - 200 3 201 - 400 3 401 - 800 3 A 17 8 (47.6) 2 3 4 (69.9) 2 7 8 (73.0) 2 2732 (72.2) 2 2732 (72.2) 2 2732 (72.2) B 2 12 (63.5) 3 3 8 (85.7) 3 21 32 (92.9) 3 1732 (89.7) 4 21 32 (118.3) 4 21 32 (118.3) Dimensions in Inches (mm in parentheses) C D E F 9 16 13 32 2 7 8 -- (73.0) (14.3) (10.3) 13 16 23 32 3 5 8 4 5 16 (92.1) (109.5) (20.6) (18.3) 3 4 4 1 16 5 1 (103.2) (127.0) (25.4) (19.1) 4 3 8 5 3 32 112 1 (111.1) (129.4) (38.1) (25.4) 4 2732 6 14 2 1 5 8 (123.0) (158.8) (50.8) (41.3) 5 11 32 6 14 2 12 2 (135.7) (158.8) (63.5) (50.8) G (6.4) 11 32 (8.7) 13 32 (10.3) 13 32 (10.3) 9 16 (14.3) 9 16 (14.3) 14 H (1.2) 18 (3.2) 18 (3.2) 14 (6.4) 14 (6.4) 3 8 (9.5) 3 64 Contact Littelfuse for characteristic curves. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 87 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. (c) 2005 Littelfuse * POWR-GARDTM 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 -24-12 deep 1 2 -20-1 2 deep 1 2 -20-12 deep 1 2 -20-1 2 deep * Optional Trigger Actuator (IL) (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 89 Special Purpose Fuses LA30QS Semiconductor Fuses 300 VAC * Very Fast Acting * 35 - 4500 Amperes Littelfuse LA30QS series Semiconductor protection fuses are intended for the protection of Power Semiconductors such as diodes, phase control SCR's and other power semiconductor devices. The LA30QS is recommended for new applications providing solutions for your critical protection needs for 300V and less semiconductors. 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. * Superior DC capabilities. Applications Protection of 300 volt heavy duty rectifiers and similar heavy duty power supplies. Ordering Information LA 30 QS 600 -4 TI Special Purpose Fuses Littelfuse Voltage (300) Style Ampere Rating Mounting Type Ferrule Blades/Bolt-in Hockey Puck, bolt-in 1 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. 90 Voltage Rating: Interrupting Rating: Ampere Range: Approvals: www.littelfuse.com AC: 300 volts DC: 300 volts 200,000 Amperes 35 - 4500 Amperes UL Recognized under the components program. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses LA30QS Semiconductor Fuses 300 VAC * Very Fast Acting * 35 - 4500 Amperes Catalog Numbers & Technical Data Littelfuse Catalog Number Mounting Type 35 40 50 60 70 80 90 100 100 125 130 150 150 175 200 200 225 250 250 300 300 350 400 400 400 450 LA30QS35-4 LA30QS40-4 LA30QS50-4 LA30QS60-4 LA30QS70-4 LA30QS80-4 LA30QS90-4 LA30QS100-4 LA30QS100-4TI LA30QS125-4 LA30QS130-4 LA30QS150-4 LA30QS150-4TI LA30QS175-4 LA30QS200-4 LA30QS200-4TI LA30QS225-4 LA30QS250-4 LA30QS250-4TI LA30QS300-4 LA30QS300-4TI LA30QS350-4 LA30QS400-4 LA30QS400-4IL LA30QS400-4TI LA30QS450-4 4 4 4 4 4 4 4 4 4TI 4 4 4 4TI 4 4 4TI 4 4 4TI 4 4TI 4 4 4IL 4TI 4 Maximum Clearing I2 t @300 VAC (A 2S x 10 3) 0.9 1.2 2 2.7 1.6 2.6 3.2 4.1 4.1 6.3 6.3 9.3 9.3 10 15 15 22 25 25 37 37 62 83 83 83 130 Figure 1 Watts Loss @ Rated Current (W) 6.4 7 9.9 11.6 11 11 13 13 13 16 16 19 19 27 30 30 33 41 41 47 47 49 56 56 56 53 Ampere Rating Littelfuse Catalog Number Mounting Type 500 550 600 600 600 700 700 800 800 800 1000 1000 1200 1500 1500 1600 2000 2000 2500 2500 3000 3500 3500 4000 4500 LA30QS500-4 LA30QS550-4 LA30QS600-4 LA30QS600-4TI LA30QS600-4IL LA30QS700-4 LA30QS700-128 LA30QS800-4 LA30QS800-4IL LA30QS800-128 LA30QS1000-128 LA30QS1000-128IL LA30QS1200-128 LA30QS1500-128 LA30QS1500-128IL LA30QS1600-128 LA30QS2000-128 LA30QS2000-128IL LA30QS2500-128 LA30QS2500-128IL LA30QS3000-128 LA30QS3500-128 LA30QS3500-128IL LA30QS4000-128 LA30QS4500-128 4 4 4 4TI 4IL 4 128 4 4IL 128 128 128IL 128 128 128IL 128 128 128IL 128 128IL 128 128 128IL 128 128 Figure 2 Figure 4 Maximum Clearing I2 t @300 VAC (A 2S x 10 3) 160 190 230 230 230 260 260 330 330 330 460 460 880 1400 1400 1690 2600 2600 4000 4000 4700 6500 6500 8600 11000 Watts Loss @ Rated Current (W) 59 65 69 69 69 90 73 108 108 84 105 105 110 140 140 150 190 190 230 230 340 380 380 450 500 Special Purpose Fuses Ampere Rating Figure 3 Figure 5 Figure 6 TAP F 1.17 E [ 29.8 mm ] D C A 0.50 [ 12.8 mm ] Dimensions B Dimensions for reference only. Amperes Mount. Type Fig. No. 35 - 60 70 - 200 225 - 700 700 - 1200 1500 - 2500 3000 - 4500 4 4 4, 4IL* 128 128, 128IL* 128, 128IL* 1 2 2, 3* 4 5, 6* 5, 6* A B 3.19 (81.0) 0.81 (20.6) 3.13 (79.5) 1.22 (31.0) 3.84 (97.5) 1.50 (38.1) 2.59 (65.8) 3.00 (76.2) 2.59 (65.8) 3.50 (88.9) 2.59 (65.8) 4.50 (114) Dimensions in Inches (mm in parentheses) C D E F 1.63 (41.4) 2.50 (63.5) 2.25 (57.5) 0.34 (8.6) 1.63 (41.4) 2.44 (62.0) 2.31 (58.7) 0.31 (7.9) 1.59 (40.1) 2.91 (73.9) 2.28 (57.9) 0.41 (10.4) 2.34 (59.4) 2.50 (63.5) 1.50 (38.1) - 2.34 (59.4) 3.00 (76.2) 1.50 (38.1) 1.50 (38.1) 2.34 (59.4) 3.75 (95.3) 1.50 (38.1) 1.50 (38.1) G 0.72 (18.3) 1.00 (25.4) 1.00 (25.4) - - - H 0.13 (3.3) 0.19 (4.8) 0.25 (6.4) - - - Tap - - - 3 8 -24-12 deep 3 8 -24-12 deep 12 -20-12 deep * Optional Actuator (IL) (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 91 Special Purpose Fuses LA50QS Semiconductor Fuses 500 VAC * Very Fast Acting * 35 - 1200 Amperes In response to new equipment requirements, Littelfuse LA50QS series fuses were developed to improve the overall performance of semiconductor fuses. The LA50QS provides the best protection features including lower I2t, longer life when subjected to cyclic loading and lower watts loss. LA50QS is today's choice for the protection of dynamic solid state equipment. Features * * * * * Lowest I2t for greatest protection of semiconductor circuits. Low watts loss for cooler operation. Superior cycling ability gives an equipment design advantage. State-of-the-art protection for 500 volt equipment. Ultra compact sizes allow down-sizing of existing equipment. Applications Protection of 500 volts or less solid state equipment such as motor drives, UPS, inverters, etc. Ordering Information LA 50 QS 250 -4 Special Purpose Fuses Littelfuse Voltage (500) Style Ampere Rating Mounting Type (Blades/Bolt-in) Specifications Voltage Rating: Interrupting Rating: Ampere Range: Approvals: 92 www.littelfuse.com AC: 500 volts DC: 500 volts AC: 200,000 Amperes DC: 100,000 Amperes 35 - 1200 Amperes UL Recognized under the components program CSA Certified. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses LA50QS Semiconductor Fuses 500 VAC * Very Fast Acting * 35 - 1200 Amperes Catalog Numbers & Technical Data Ampere Rating Littelfuse Catalog Number 35 40 50 60 70 80 90 100 125 150 175 200 225 LA50QS35-4 LA50QS40-4 LA50QS50-4 LA50QS60-4 LA50QS70-4 LA50QS80-4 LA50QS90-4 LA50QS100-4 LA50QS125-4 LA50QS150-4 LA50QS175-4 LA50QS200-4 LA50QS225-4 Maximum Mounting Clearing I2 t @500 Type VAC (A 2S x 10 3) 4 4 4 4 4 4 4 4 4 4 4 4 4 0.56 0.69 1.1 1.8 1.9 2.6 3.6 4.4 5.6 9 15 20 25 Watts Loss @ Rated Current (W) 6 7 8 10 12 14 15 17 21 25 29 33 37 Ampere Rating Littelfuse Catalog Number 250 300 350 400 450 500 600 700 800 900 1000 1200 LA50QS250-4 LA50QS300-4 LA50QS350-4 LA50QS400-4 LA50QS450-4 LA50QS500-4 LA50QS600-4 LA50QS700-4 LA50QS800-4 LA50QS900-4 LA50QS1000-4 LA50QS1200-4 Maximum Mounting Clearing I2 t @500 Type VAC (A 2S x 10 3) 4 4 4 4 4 4 4 4 4 4 4 4 29 55 88 98 130 160 220 270 360 500 560 930 Watts Loss @ Rated Current (W) 41 49 57 65 69 77 92 110 130 140 160 175 Special Purpose Fuses Dimensions Dimensions for reference only. Amperes Mount. Type 35 - 100 4 125 - 200 4 225 - 400 4 450 - 600 4 700 - 800 4 900 - 1200 4 Dimensions in Inches (mm in parentheses) A 3.63 (92.2) 3.63 (92.2) 4.34 (110) 4.47 (114) 6.47 (164.3) 6.97 (177.0) B 1.00 (25.4) 1.22 (31.0) 1.50 (38.1) 2.00 (50.8) 2.50 (63.5) 3.00 (76.2) C 2.13 (54.1) 2.13 (54.1) 2.09 (53.1) 2.22 (56.4) 2.22 (56.4) 3.22 (81.8) D 2.94 (74.7) 2.94 (74.7) 3.41 (86.6) 3.53 (89.7) 5.00 (127.0) 5.47 (138.9) E 2.75 (69.9) 2.81 (71.4) 2.78 (70.6) 2.91 (73.9) 3.44 (87.3) 4.47 (113.5) F 0.31 (7.9) 0.31 (7.9) 0.41 (10.4) 0.41 (10.4) 0.53 (13.5) 0.63 (15.9) G 0.75 (19.1) 1.00 (25.4) 1.00 (25.4) 1.50 (38.1) 1.50 (38.1) 2.38 (60.3) H 0.13 (3.3) 0.19 (4.8) 0.25 (6.4) 0.25 (6.4) 0.25 (6.4) 0.44 (11.1) Contact Littelfuse for characteristic curves. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 93 Special Purpose Fuses LA60Q Semiconductor Fuses 600 VAC * Very Fast Acting * 5 - 40 Amperes Littelfuse LA60Q semiconductor protection fuses feature a 600 volt AC/DC rating in a compact size (11 2" x 13 32"). LA60Q also has the lowest I2t of all similar fuses and excellent cycling ability. Applications include inverters and small equipment requiring extremely fast response to faults, without the need to carry sustained heavy overloads. Features * Lowest I2t of any fuse this size for greater protection. * Excellent cycling ability gives advantage in equipment design. Dimensions (in inches) Ordering Information Special Purpose Fuses LA 60 Q 30 -2 Littelfuse Voltage (300) Style Catalog Numbers & Technical Data Ampere Rating Littelfuse Catalog Number 5 8 10 12 15 20 25 30 35 40 LA60Q5-2 LA60Q8-2 LA60Q10-2 LA60Q12-2 LA60Q15-2 LA60Q20-2 LA60Q25-2 LA60Q30-2 LA60Q35-2 LA60Q40-2 Ampere Rating Maximum Mounting Watts Loss @ Clearing I2 t @600 Type Rated Current (W) 2 VAC (A S) 2 2 2 2 2 2 2 2 2 2 60 70 110 150 180 330 440 860 1300 1800 0.7 1.1 1.6 2 3 4.4 5.5 5.6 6.4 7 Mounting Type Ferrule, midget dim. 1-1/2" x 13/32" Specifications Voltage Rating: Interrupting Rating: Ampere Range: Approvals: AC: 600 volts DC: 600 volts AC: 200,000 Amperes DC: 100,000 Amperes 5 - 40 Amperes UL Recognized under the components program. Recommended Fuse Blocks LPSM or L60030M Contact Littelfuse for characteristic curves. 94 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses LA60X Semiconductor Fuses 600 VAC * Very Fast Acting * 700 - 2000 Amperes Littelfuse LA60X semiconductor protection fuses are popular for the protection of higher voltage heavy rectifiers such as traction rectifiers. They can carry long sustained overloads common with heavy-duty apparatus. The compact "hockey puck" design provides high power protection in a small space. Features * Lowest I2t minimizes damage to protected components on short- circuit. * Controlled arc voltage reduces stress to circuit components during fuse clearing. Applications Protection of heavy traction and electrochemical as well as rectifiers and other heavy-duty equipment. Ordering Information LA 60 X 700 -128 Littelfuse Figure 1 Voltage Figure 2 (300) Special Purpose Fuses Style Ampere Rating Mounting Type Hockey Puck, bolt-in Dimensions Dimensions for reference only. Amperes Mount. Type Fig. No. 700 - 800 128 1 1000 - 1200 128 2 1500 - 2000 128 2 Dimensions in Inches (mm in parentheses) A 4.00 (102) 4.00 (102) 4.00 (102) B 3.00 (76.2) 3.50 (88.9) 4.50 (114) C 3.75 (95.3) 3.75 (95.3) 3.75 (95.3) D 2.50 (63.5) 3.00 (76.2) 3.75 (95.3) E 1.50 (38.1) 1.50 (38.1) 1.50 (38.1) Tap F 1.50 (38.1) 1.50 (38.1) -24-12 deep 3 8 -24-12 deep 3 8 -20-12 deep 12 Specifications Voltage Rating: Interrupting Rating: Ampere Range: Approvals: AC: 600 volts AC: 100,000 Amperes 700 - 2000 Amperes UL Recognized under the components program. Ampere Ratings Contact Littelfuse for technical information. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog 700 800 1000 www.littelfuse.com 1200 1500 1600 1800 2000 95 Special Purpose Fuses LA70QS Semiconductor Fuses 700 VAC * Very Fast Acting * 35 - 800 Amperes Littelfuse LA70QS semiconductor fuses were developed to provide improved performance required by today's new equipment. The LA70QS features lower I2t, improved cycling, and lower watts loss. It is the best choice for the protection of dynamic solid-state equipment. Features * * * * * Very low I2t improved protection of equipment. Superior cycling ability for long, reliable life on high cycling loading. Lower watts loss for cooler operation. 700 Volt AC/DC rating provides greater design versatility. Compact sizes allow downsizing of equipment. Applications Protection of 700 volt or less solid state equipment such as motor drives, UPS, inverters, etc. Ordering Information LA 70 QS 150 -4 Littelfuse Voltage Special Purpose Fuses (300) Style Ampere Rating Mounting Type Blades/Bolt-in Specifications Voltage Rating: Interrupting Rating: Ampere Range: Approvals: 96 www.littelfuse.com AC: 700 Volts DC: 700 Volts AC: 200,000 Amperes DC: 100,000 Amperes 35 - 800 Amperes UL Recognized under the components program. CSA Certified. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses LA70QS Semiconductor Fuses 700 VAC * Very Fast Acting * 35 - 800 Amperes Catalog Numbers & Technical Data Ampere Rating Littelfuse Catalog Number 35 40 50 60 70 80 90 100 125 125 150 150 175 175 LA70QS35-4 LA70QS40-4 LA70QS50-4 LA70QS60-4 LA70QS70-4 LA70QS80-4 LA70QS90-4 LA70QS100-4 LA70QS125-4 LA70QS125-4K LA70QS150-4 LA70QS150-4K LA70QS175-4 LA70QS175-4K Maximum Mounting Watts Loss @ Clearing I2 t @700 Type Rated Current (W) VAC (A 2S x 10 3) 4 4 4 4 4 4 4 4 4 4K 4 4K 4 4K 0.47 0.58 0.88 1.2 1.8 2.3 3 3.6 6.9 6.9 11 11 14 14 6.2 7.5 9.8 12 15 16 20 24 22 22 28 29 35 35 Maximum Ampere Littelfuse Mounting Watts Loss @ Clearing I2 t @700 Rating Catalog Number Type Rated Current (W) VAC (A 2S x 10 3) 200 200 250 300 350 400 450 450 500 500 600 600 700 800 LA70QS200-4 LA70QS200-4K LA70QS250-4 LA70QS300-4 LA70QS350-4 LA70QS400-4 LA70QS450-4 LA70QS450-4K LA70QS500-4 LA70QS500-4K LA70QS600-4 LA70QS600-4K LA70QS700-4 LA70QS800-4 4 4 4 4 4 4 4 4K 4 4K 4 4K 4 4 19 19 42 55 72 99 125 125 150 160 222 222 332 433 41 41 42 53 64 75 75 75 92 92 116 116 125 143 Special Purpose Fuses Dimensions Dimensions for reference only. Amperes Mount. Type 35 - 100 4 125 - 200 4 125 - 200 4K 225 - 400 4 450 - 600 4 450 - 600 4K 700 - 800 4 Dimensions in Inches (mm in parentheses) A 4.38 (111) 4.38 (111) 5.09 (129) 5.09 (129) 5.09 (129) 7.09 (180) 7.09 (180) B 1.00 (25.4) 1.22 (31.0) 1.22 (31.0) 1.50 (38.1) 2.00 (50.8) 2.00 (50.8) 2.50 (63.5) C 2.88 (73) 2.88 (73) 2.88 (73) 2.84 (72.2) 2.84 (72.2) 2.84 (72.2) 2.84 (72.2) D 3.69 (93.6) 3.69 (93.6) 4.19 (106) 4.16 (106) 4.16 (106) 6.16 (156) 5.28 (134) E 3.50 (88.9) 3.56 (90.5) 3.50 (88) 3.53 (89.7) 3.53 (89.7) 3.53 (89.7) 4.91 (125) F 0.31 (7.9) 0.31 (7.9) 0.41 (10.3) 0.40 (10.3) 0.41 (10.3) 0.53 (13.5) 0.53 (13.5) G 0.75 (19.0) 1.00 (25.4) 1.00 (25.4) 1.50 (38.1) 1.50 (38.1) 1.50 (38.1) 2.00 (50.8) H 0.13 (3.2) 0.19 (4.8) 0.19 (4.8) 0.25 (6.4) 0.25 (6.4) 0.25 (6.4) 0.38 (9.5) Contact Littelfuse for characteristic curves. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 97 Special Purpose Fuses LA70QS French Cylindrical Fuses 690 Volts * Very Fast Acting * 10 - 100 Amperes Ordering Information LA 70 QS 20 -14F I Littelfuse Voltage (700) Style Ampere Rating Size 14 x 51mm 22 x 58mm 14F 22F Optional Striker (I) B C A Special Purpose Fuses Littelfuse French Cylindrical style semiconductor fuses are an extension to the LA70QS series. They offer a solid-fill design with high interrupting ratings and an optional striker for visual or remote blown fuse indication. The international 14x51mm and 22x58mm sizes are accepted worldwide. B C D E A Catalog Numbers & Technical Data 98 Ampere Rating Littelfuse Catalog Number (No Striker) 10 12 16 20 25 32 40 50 20 25 32 40 50 63 80 100 LA70QS10-14F LA70QS12-14F LA70QS16-14F LA70QS20-14F LA70QS25-14F LA70QS32-14F LA70QS40-14F LA70QS50-14F LA70QS20-22F LA70QS25-22F LA70QS32-22F LA70QS40-22F LA70QS50-22F LA70QS63-22F LA70QS80-22F LA70QS100-22F Littelfuse Catalog Body Number Size (With Striker) LA70QS10-14FI LA70QS12-14FI LA70QS16-14FI LA70QS20-14FI LA70QS25-14FI LA70QS32-14FI LA70QS40-14FI LA70QS50-14FI LA70QS20-22FI LA70QS25-22FI LA70QS32-22FI LA70QS40-22FI LA70QS50-22FI LA70QS63-22FI LA70QS80-22FI LA70QS100-22FI 14x51 14x51 14x51 14x51 14x51 14x51 14x51 14x51 22x58 22x58 22x58 22x58 22x58 22x58 22x58 22x58 Maximum Watts Loss Clearing I2 t @ Rated @700 VAC Current (W) 2 3 (A S x 10 ) 0.04 0.06 0.10 0.16 0.27 1.50 0.70 1.50 0.076 0.125 0.27 0.48 0.80 1.85 3.80 8.00 3.5 4.4 4.8 5.2 5.8 7.0 10.7 11.6 8.0 10.0 11.0 13.0 14.9 16.0 17.8 19.0 Fuse Size 14x51 (no striker) 22x58 (no striker) 14x51 (with striker) 22x58 (with striker) Dimensions in mm A 14 22 14 22 B 51 58 51 58 C 14 16 14 16 D - - 7.5 7.5 E - - 3.8 3.8 Dimensions for reference only. Specifications Voltage Rating: Interrupting Rating: Ampere Range: Approvals: AC: 690 Volts DC: 700 Volts AC: 200,000 Amperes DC: 100,000 Amperes 10 - 100 Amperes UL Recognized under the components program. CSA Certified. Recommended Fuse Blocks CYH series for non-striker fuses LA70QS(amp)22F LPSG series for the striker style LA70QS(amp)22FI www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses LA100P Semiconductor Fuses 1000 VAC * Very Fast Acting * 15 - 1000 Amperes Littelfuse LA100P semiconductor protection fuses are rated 1000V, extending the range of protection for UPS systems, AC and DC drives, reduced voltage motor starters and similar applications where lower I2t and superior reliability are needed. With ratings from 15-1000 amperes, a wide range of high voltage applications can be served. Features * Low I2t minimizes damage to protected components on short-circuit. * Controlled arc voltage reduces stress to circuit components during fuse clearing. Applications Protection of UPS systems, AC/DC drives, reduced voltage motor starters and other 1000V or less semiconductor devices. Ordering Information LA 100 P 80 -4 TI Littelfuse Voltage (1000) Special Purpose Fuses Style Ampere Rating Mounting Type Ferrule Blades/Bolt-in 1 4 Integral BlownFuse Indicator Trigger Indicator TI Note: Mounting types and integral blown fuse indicators are optional for specified ratings. Specifications Voltage Rating: Interrupting Rating: Ampere Range: Approvals: (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com AC: 1000 Volts DC: 750 Volts 100,000 Amperes 15 - 1000 Amperes UL Recognized under the components program. 99 Special Purpose Fuses LA100P Semiconductor Fuses 1000 VAC * Very Fast Acting * 15 - 1000 Amperes Catalog Numbers & Technical Data Ampere Rating Special Purpose Fuses 15 20 25 30 35 40 50 50 60 60 70 80 80 100 100 125 125 150 150 Littelfuse Catalog Number LA100P15-1 LA100P20-1 LA100P25-1 LA100P30-1 LA100P35-4 LA100P40-4 LA100P50-4 LA100P50-4TI LA100P60-4 LA100P60-4TI LA100P70-4TI LA100P80-4 LA100P80-4TI LA100P100-4 LA100P100-4TI LA100P125-4 LA100P125-4TI LA100P150-4 LA100P150-4TI Maximum Mounting Watts Loss @ Clearing I2 t @1000 Type Rated Current (W) VAC (A 2S x 10 3) 1 0.6 3.4 1 0.8 5.9 1 1,3 9 1 1.5 12.8 4 2.2 7.3 4 2.9 8.3 4 4.5 11 4TI 4.5 11 4 6.5 13 4TI 6.5 13 4TI 8.8 13 4 12 14 4TI 12 14 4 18 18 4TI 18 18 4 28 23 4TI 28 23 4 41 28 4TI 41 28 Ampere Rating 200 200 225 250 300 300 350 350 400 400 500 500 600 600 650 700 800 800 1000 Figure 1 Figure 2 Figure 3 Figure 4 Littelfuse Maximum Mounting Watts Loss @ Catalog Clearing I2 t @1000 Type Rated Current (W) Number VAC (A 2S x 10 3) LA100P200-4 4 72 36 LA100P200-4TI 4TI 72 36 LA100P225-4 4 91 40 LA100P250-4 4 110 46 LA100P300-4 4 160 55 LA100P300-4TI 4TI 160 55 LA100P350-4 4 220 65 LA100P350-4TI 4TI 220 65 LA100P400-4 4 290 70 LA100P400-4TI 4TI 290 70 LA100P500-4 4 450 90 LA100P500-4TI 4TI 450 90 LA100P600-4 4 650 110 LA100P600-4TI 4TI 650 110 LA100P650-4 4 780 120 LA100P700-4 4 880 125 LA100P800-4 4 1200 140 LA100P800-4TI 4TI 1200 140 LA100P1000-4 4 1900 190 Dimensions Dimensions for reference only. Amperes Mount. Type Fig. No. 15 - 30 1 1 35 - 60 4, 4TI 2 65 - 100 4, 4TI 2 125 - 200 4, 4TI 2 225 - 400 4, 4TI 2 500 - 600 4, 4TI 2 650 - 800 4, 4TI 3 1000 4 4 Dimensions in Inches (mm in parentheses) A 2.53 (66.8) 5.00 (127) 5.00 (127) 5.72 (145) 5.72 (145) 7.72 (196) 7.44 (189) 8.22 (209) B 0.56 (14.2) 1.00 (25.4) 1.22 (31) 2.00 (38.1) 2.00 (50.8) 2.50 (63.5) 2.88 (73.2) 3.50 (88.9) C D E F G H J - - - - - - - 3.50 (173) 3.50 (173) 3.47 (88.1) 3.47 (88.1) 3.47 (88.1) 3.94 (100) 4.47 (114) 4.31 (109) 4.31 (109) 4.78 (121) 4.78 (121) 5.88 (149) 5.94 (151) 6.59 (167) 4.19 (106) 4.19 (106) 4.16 (106) 4.16 (106) 5.56 (147) 0.31 (7.9) 0.31 (7.9) 0.41 (10.4) 0.41 (10.4) 0.53 (13.5) 0.63 (16) 0.63 (16) 0.75 (19.1) 1.00 (25.4) 1.00 (25.4) 1.50 (25.4) 2.00 (50.8) 2.00 (50.8) 2.75 (69.9) 0.13 (3.3) 0.19 (4.8) 0.25 (6.4) 0.25 (6.4) 0.38 (9.7) 0.38 (9.7) 0.50 (12.7) - 5.84 (148) - - - - - 0.31 (7.9) 1.38 (35.1) Contact Littelfuse for characteristic curves. 100 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses LA120X Semiconductor Fuses 1200 VAC * Very Fast Acting * 1/2 - 30 Amperes Littelfuse LA120X semiconductor protection fuses, rated 1/2 through 30A, 1200 VAC are popular for use in traction drive auxiliary circuits and similar applications. LA120X fuses are also suitable for use on 1000VDC auxiliary circuits with low time constants. Features * 1000 Volt DC rating for a wide range of circuits. * Compact size fits in where competitive sizes will not fit. Applications Protection of traction drive auxiliary circuits, etc. Dimensions In Inches (mm in parentheses) 4 5/8 (117) .812 (20.6) Special Purpose Fuses Ordering Information LA 120 X 25 -1 Littelfuse Voltage (1200) Style Catalog Numbers & Technical Data Ampere Rating Ampere Rating Littelfuse Catalog Number Mounting Type Maximum Clearing I2 t @1200 VAC (A 2S) 1 2 3 4 5 6 10 15 20 25 30 LA120A1/2-1 LA120X1-1 LA120X2-1 LA120X3-1 LA120X4-1 LA120X5-1 LA120X6-1 LA120X10-1 LA120X15-1 LA120X20-1 LA120X25-1 LA120X30-1 1 1 1 1 1 1 1 1 1 1 1 1 1.9 7.5 30 69 120 190 280 970 2100 3700 5700 8300 12 (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Mounting Type Ferrule Specifications Voltage Rating: Interrupting Rating: Ampere Range: AC: 1200 Volts DC: 1000 Volts 100,000 Amperes 1 2 - 30 Amperes Note: Mounting type 1 can use 109002 and 129002 clips. www.littelfuse.com 101 Special Purpose Fuses Square Body Semiconductor Fuses 700/1300 VAC * Very Fast Acting * 40 - 2500 Amperes Littelfuse North American style square body semiconductor fuses provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. Available in different body sizes and multiple mounting styles, the broad range of ampere ratings allows great flexibility in equipment design. Engineered to provide state-of-the-art protection for SCR's, diodes, thyristors, GTO's, and IGBT devices, Littelfuse square body fuses have pure die-cut elements embedded in solidified sand to control arcing and lower I2t. All fuses are also equipped with a blown fuse trip indicator. Features * Choice of mounting styles provides a wide choice for equipment design. * Broad range of ampere ratings in a given body size for design flexibility. * Very low I2t minimizes damage to protected components. * Superior cycling ability for long, reliable life on high cyclic loading. * Extremely fast acting and current-limiting for improved protection to equipment. Applications Special Purpose Fuses Ordering Information LA 070 URD 31 LI 350 Specifications Littelfuse Voltage Rating: AC: 700 Volts (LA070) 1300 Volts (LA130) DC: Contact factory Interrupting Rating: AC: 200,000 Amperes (LA070) 100,000 Amperes (LA130) DC: Contact factory Ampere Range: 40 - 2500 Amperes Approvals: UL Recognized Component Voltage (070=700V 130=1300V) Class Size 700V 30 31 32 33 Protection of rectifiers, inverters, DC drives, UPS systems, reduced voltage motor starters, and other equipment in globally accepted applications. 1300V 70 71 72 73 Mounting Type Straight-blade Straight-blade Flat-type, one hole KI LI TTI LI LLI TTI Amp Rating 102 www.littelfuse.com (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses Square Body Semiconductor Fuses 700/1300 VAC * Very Fast-Acting * 40 - 2500 Amperes 700 Volt North American Style Ratings and Application Data Body Size 30 31 33 Rated Voltage Melting I2 t (A 2S x 10 3) Total I2 t @ Rated Voltage (A 2S x 10 3) **Watts Loss @ Rated Current (W) Long Blade Catalog No. Type LI Short Blade Catalog No. Type KI Tapped Terminal Catalog No. Type TTI 63 80 100 125 160 200 250 315 350 400 450 500 550 200 250 315 350 400 450 500 550 630 700 800 400 450 500 550 630 700 800 900 1000 1100 1250 1400 1600 1800 500 550 630 700 800 900 1000 1100 1250 1400 1600 1800 2000 2250 2500 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 700 650 600 550 550 500 700 700 700 700 700 700 700 700 700 700 650 650 600 550 500 0.2 0.33 0.47 0.85 1.6 3 5.8 12 15.5 23 26 41 52 2.5 4.7 7.5 10.5 19 26.5 37 52 75 95 140 15 22 28 37 54 76 115 170 240 270 410 555 870 1050 19 27 40 55 95 135 170 240 350 480 555 720 950 1250 1870 1.2 1.9 2.7 4.9 9.2 16.7 32.4 67 86 130 165 264 330 14.6 27 43 59 110 150 210 300 421 530 880 86 124 157 211 302 432 648 972 1350 1620 2100 2600 4000 4400 108 151 227 324 529 760 970 1360 2000 2700 3250 4330 5000 5900 7600 14 19 26 30 37 42 43 48 50 53 55 57 60 60 65 80 88 80 88 80 90 45 52 65 67 68 70 70 72 70 75 75 85 85 95 105 120 72 75 77 80 85 90 90 95 95 105 100 110 110 120 110 125 115 135 140 165 150 180 160 190 165 195 195 330 105 105 110 110 120 115 125 120 130 120 135 135 155 135 160 150 180 160 200 210 240 225 260 250 290 280 330 280 330 LA070URD30LI0063 LA070URD30LI0080 LA070URD30LI0100 LA070URD30LI0125 LA070URD30LI0160 LA070URD30LI0200 LA070URD30LI0250 LA070URD30LI0315 LA070URD30LI0350 LA070URD30LI0400 LA070URD30LI0450 LA070URD30LI0500 LA070URD30LI0550 LA070URD31LI0200 LA070URD31LI0250 LA070URD31LI0315 LA070URD31LI0350 LA070URD31LI0400 LA070URD31LI0450 LA070URD31LI0500 LA070URD31LI0550 LA070URD31LI0630 LA070URD31LI0700 LA070URD31LI0800 LA070URD32LI0400 LA070URD32LI0450 LA070URD32LI0500 LA070URD32LI0550 LA070URD32LI0630 LA070URD32LI0700 LA070URD32LI0800 LA070URD32LI0900 LA070URD32LI1000 LA065URD32LI1100 LA060URD32LI1250 LA055URD32LI1400 LA055URD32LI1600 LA050URD32LI1800 LA070URD33LI0500 LA070URD33LI0550 LA070URD33LI0630 LA070URD33LI0700 LA070URD33LI0800 LA070URD33LI0900 LA070URD33LI1000 LA070URD33LI1100 LA070URD33LI1250 LA070URD33LI1400 LA065URD33LI1600 LA065URD33LI1800 LA060URD33LI2000 LA050URD33LI2250 LA050URD33LI2500 LA070URD30KI0063 LA070URD30KI0080 LA070URD30KI0100 LA070URD30KI0125 LA070URD30KI0160 LA070URD30KI0200 LA070URD30KI0250 LA070URD30KI0315 LA070URD30KI0350 LA070URD30KI0400 LA070URD30KI0450 LA070URD30KI0500 LA070URD30KI0550 LA070URD31KI0200 LA070URD31KI0250 LA070URD31KI0315 LA070URD31KI0350 LA070URD31KI0400 LA070URD31KI0450 LA070URD31KI0500 LA070URD31KI0550 LA070URD31KI0630 LA070URD31KI0700 LA070URD31KI0800 LA070URD32KI0400 LA070URD32KI0450 LA070URD32KI0500 LA070URD32KI0550 LA070URD32KI0630 LA070URD32KI0700 LA070URD32KI0800 LA070URD32KI0900 LA070URD32KI1000 - - - - - LA070URD33KI0500 LA070URD33KI0550 LA070URD33KI0630 LA070URD33KI0700 LA070URD33KI0800 LA070URD33KI0900 LA070URD33KI1000 LA070URD33KI1100 LA070URD33KI1250 LA070URD33KI1400 - - - - - LA070URD30TTI0063 LA070URD30TTI0080 LA070URD30TTI0100 LA070URD30TTI0125 LA070URD30TTI0160 LA070URD30TTI0200 LA070URD30TTI0250 LA070URD30TTI0315 LA070URD30TTI0350 LA070URD30TTI0400 LA070URD30TTI0450 LA070URD30TTI0500 LA070URD30TTI0550 LA070URD31TTI0200 LA070URD31TTI0250 LA070URD31TTI0315 LA070URD31TTI0350 LA070URD31TTI0400 LA070URD31TTI0450 LA070URD31TTI0500 LA070URD31TTI0550 LA070URD31TTI0630 LA070URD31TTI0700 LA070URD31TTI0800 LA070URD32TTI0400 LA070URD32TTI0450 LA070URD32TTI0500 LA070URD32TTI0550 LA070URD32TTI0630 LA070URD32TTI0700 LA070URD32TTI0800 LA070URD32TTI0900 LA070URD32TTI1000 LA065URD32TTI1100 LA060URD32TTI1250 LA055URD32TTI1400 LA055URD32TTI1600 LA050URD32TTI1800 LA070URD33TTI0500 LA070URD33TTI0550 LA070URD33TTI0630 LA070URD33TTI0700 LA070URD33TTI0800 LA070URD33TTI0900 LA070URD33TTI1000 LA070URD33TTI1100 LA070URD33TTI1250 LA070URD33TTI1400 LA065URD33TTI1600 LA065URD33TTI1800 LA060URD33TTI2000 LA055URD33TTI2250 LA050URD33TTI2500 Special Purpose Fuses 32 Amp Rating ** Watts loss data is published for both blade and tapped style mounting configurations. When two watts loss values are shown, this represents tapped/blade values respectively. Contact Littelfuse for characteristic curves. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 103 Special Purpose Fuses Square Body Semiconductor Fuses 700/1300 VAC * Very Fast Acting * 40 - 2500 Amperes North American Straight Blade, Type KI Dimensions - 700V Fuses TYPES KI AND LI Catalog Number J C LA070URD30KI (63-550) B A D LA070URD31KI (200-800) 1.925 MAX [47.6] .24 A G LA070URD33KI (500-1400) H A C E [6] LA070URD32KI (400-1000) F A 1.57 (40) 2.01 (51) 2.36 (60) 2.93 (74.5) B 0.98 (25) 0.98 (25) 1.26 (32) 1.57 (40) C 0.49 (12.5) 0.49 (12.5) 0.63 (16) 0.79 (20) D 0.83 (21) 1.0 (25.5) 1.18 (30) 1.46 (37.2) E 0.71 (18) 0.89 (22.5) 1.06 (27) 1.35 (34.2) F 2.68 (68) 2.66 (67.6) 2.92 (74.2) 2.97 (75.4) G 4.21 (107) 4.22 (107.1) 4.29 (109) 4.24 (107.6) H 5.08 (129) 5.07 (128.8) 5.28 (134) 5.28 (134) J 0.41 (10.5) 0.56 (14.3) 0.57 (14.6) 0.63 (15.9) North American Straight Blade Types LI B D .24 [6] Dimensions - 700V Fuses E A A 1.57 (40) 2.01 (51) B 0.98 (25) 0.98 (25) C 0.49 (12.5) 0.49 (12.5) D 0.83 (21) 1.0 (25.5) E 0.71 (18) 0.89 (22.5) F 3.45 (87.6) 3.61 (91.6) 2.36 (60) 1.26 (32) 0.63 (16) 1.18 (30) 1.06 (27) 3.71 (94.2) 5.08 (129) 6.02 (153) 0.57 (14.6) 2.93 (74.5) 1.57 (40) 0.79 (20) 1.46 (37.2) 1.35 (34.2) 3.72 (94.4) 4.98 (126.6) 6.02 (153) 0.63 (15.9) LA070URD30LI (63-550) LA070URD31LI (200-800) LA070URD32LI (400-1000) LA065URD32LI (1250) LA055URD32LI (1400-1600) LA050URD32LI (1800) LA070URD33LI (500-1400) LA065URD33LI (1600-1800) LA060URD33LI (2000) LA055URD33LI (2250) LA050URD33LI (2500) TYPE TTI C Dimensions for reference only. Dimensions in Inches (mm in parentheses) Catalog Number Special Purpose Fuses Dimensions for reference only. Dimensions in Inches (mm in parentheses) G H 4.98 5.85 (126.6) (148.6) 4.82 5.85 (122.4) (148.6) J 0.41 (10.5) 0.57 (14.6) .26 [6.7] B A North American Flat Single Hole, Type TTI Dimensions - 700V Fuses Catalog Number A C (100-550) LA070URD30TTI .26 [6.7] LA070URD31TTI (200-800) B 1.93 MAX [49] 2 [50.6] 104 LA070URD32TTI (400-1000) LA065URD32TTI (1100) A LA060URD32TTI (1250) LA055URD32TTI (1400-1600) LA060URD33TTI (1800) LA070URD33TTI (500-1400) LA065URD33TTI (1600) LA060URD33TTI (2000) A LA055URD33TTI (2250) LA050URD33TTI (2500) www.littelfuse.com Dimensions for reference only.) Dimensions in Inches (mm in parentheses) A 1.57 (40) 2.00 (50.8) B 1.00 (25) 1.19 (30.2) C 2.37 (60.3) 1.50 (38.1) 3 8 2.94 (74.5) 1.81 (46) 12 -18 x 0.35 5 16 -18 x 0.35 5 16 -16 x 0.35 -18 x 0.35 (c) 2005 Littelfuse * POWR-GARDTM Products Catalog Special Purpose Fuses Square Body Semiconductor Fuses 700/1300 VAC * Very Fast Acting * 40 - 2500 Amperes 1300 Volt North American Style Ratings and Application Data Body Size 70 71 73 63 80 100 125 160 200 250 315 350 160 200 250 280 315 350 400 450 500 550 630 630 280 315 350 400 450 500 550 630 630 700 700 800 800 315 350 400 450 500 550 630 700 800 800 900 900 1000 1100 1250 1400 1600 1800 1300 1300 1300 1300 1300 1300 1300 1300 1200 1300 1300 1300 1300 1300 1300 1300 1300 1200 1200 1100 1200 1300 1300 1300 1300 1300 1300 1300 1200 1300 1100 1200 1100 1200 1300 1300 1300 1300 1300 1300 1300 1300 1200 1300 1100 1300 1100 1000 1000 900 700 660 Melting I2 t (A 2S x 10 3) 0.21 0.47 0.83 1.3 2.5 4.7 9.6 20 28 2.6 4.7 8.9 12 16 22 38 47 68 84 125 125 10 15 21 32 44 57 68 105 105 145 145 215 215 12 17 25 35 44 57 84 110 190 190 250 250 370 445 585 755 1430 2040 Total I2 t @ **Watts Loss @ Rated Voltage Rated Current (W) 2 3 (A S x 10 ) 1.8 4 7.2 11 22 40 82 172 205 22 40 76 102 138 190 330 405 500 620 930 930 90 130 180 285 380 500 590 920 920 1040 1040 1590 1590 102 150 220 310 390 500 730 960 1630 1630 2160 2160 2430 2580 3480 3880 5630 7600 26 27 30 38 45 54 56 58 61 66 72 68 75 46 54 61 68 70 73 76 76 80 76 80 87 95 90 100 98 112 105 120 72 76 77 80 87 89 94 98 110 120 113 125 122 140 125 146 84 86 93 99 100 110 112 116 120 125 132 135 146 136 148 150 170 152 174 168 208 186 200 210 228 203 206 Long Blade Catalog No. Type LI/LLI Tapped Terminal Catalog No. Type TTI LA130URD70LI0063 LA130URD70LI0080 LA130URD70LI0100 LA130URD70LI0125 LA130URD70LI0160 LA130URD70LI0200 LA130URD70LI0250 LA130URD70LI0315 LA120URD70LI0350 LA130URD71IL0160 LA130URD71LLI0200 LA130URD71LLI0250 LA130URD71IL0280 LA130URD71LLI0315 LA130URD71LLI0350 LA130URD71LLI0400 LA130URD71LLI0450 LA120URD71LLI0500 LA120URD71LLI0550 LA110URD71LLI0630 - LA130URD72LI0280 LA130URD72LI0315 LA130URD72LI0350 LA130URD72LI0400 LA130URD72LI0450 LA130URD72LI0500 LA130URD72LI0550 LA120URD72LI0630 - LA110URD72LI0700 - LA110URD72LI0800 - LA130URD73LI0315 LA130URD73LI0350 LA130URD73LI0400 LA130URD73LI0450 LA130URD73LI0500 LA130URD73LI0550 LA130URD73LI0630 LA130URD73LI0700 LA120URD73LI0800 - LA110URD73LI0900 - LA100URD73LI1000 LA100URD73LI1100 LA100URD73LI1250 LA090URD73LI1400 LA070URD73LI1600 LA065URD73LI1800 LA130URD70TTI0063 LA130URD70TTI0080 LA130URD70TTI0100 LA130URD70TTI0125 LA130URD70TTI0160 LA130URD70TTI0200 LA130URD70TTI0250 LA130URD70TTI0315 LA120URD70TTI0350 LA130URDT1TTI0160 LA130URD71TTI0200 LA130URD71TTI0250 LA130URD71TTI0280 LA130URD71TTI0315 LA130URD71TTI0350 LA130URD71TTI0400 LA130URD71TTI0450 LA120URD71TTI0500 LA120URD71TTI0550 - LA120URD71TTI0630 LA130URD72TTI0280 LA130URD72TTI0315 LA130URD72TTI0350 LA130URD72TTI0400 LA130URD72TTI0450 LA130URD72TTI0500 LA130URD72TTI0550 - LA130URD72TTI0630 LA120URD72TTI0700 - LA120URD72TTI0800 LA130URD73TTI0315 LA130URD73TTI0350 LA130URD73TTI0400 LA130URD73TTI0450 LA130URD73TTI0500 LA130URD73TTI0550 LA130URD73TTI0630 LA130URD73TTI0700 - LA130URD73TTI0800 - LA130URD73TTI0900 LA100URD73TTI1000 LA100URD73TTI1100 LA100URD73TTI1250 LA090URD73TTI1400 LA070URD73TTI1600 LA065URD73TTI1800 Special Purpose Fuses 72 Amp Rating Rated Voltage ** Watts loss data is published for both blade and tapped style mounting configurations. When two watts loss values are shown, this represents tapped/blade values respectively. Contact Littelfuse for characteristic curves. (c) 2005 Littelfuse * POWR-GARDTM Products Catalog www.littelfuse.com 105 Special Purpose Fuses Square Body Semiconductor Fuses 700/1300 VAC * Very Fast Acting * 40 - 2500 Amperes TYPES LI AND LLI J C F A B D 2.85 [72.5] E A 0.2 [5.03] G H North American Straight Blade, Types LI and LLI Dimensions - 1300V Fuses Catalog Number Special Purpose Fuses LA130URD70LI (63-315) LA120URD70LI (350) LA130URD71LLI (160-450) LA120URD71LLI (500-550) LA110URD71LLI (630) LA130URD72LI (280-550) LA120URD72LI (800) LA110URD72LI (700-800) LA130URD73LI (315-700) LA120URD73LI (800) LA110URD73LI (900-1000) LA090URD73LI (1400) LA070URD73LI (1600) LA065URD73LI (1800) Dimensions for reference only. Dimensions In Inches (mm in parentheses) A 1.57 (40) B 0.98 (25) C 0.49 (12.5) D 0.83 (21) E 0.71 (18) F 3.60 (91.4) G 5.13 (130.4) H 6.00 (152.4) J 0.41 (10.5) 2.01 (51) 0.98 (25) 0.49 (12.5) 1.0 (26.5) 0.89 (22.5) 3.60 (91.4) 5.13 (130.4) 6.00 (152.4) 0.57 (14.6) 2.36 (60) 1.26 (32) 0.63 (16) 1.18 (30) 1.06 (27) 3.84 (97.6) 5.2 (132.4) 6.20 (157.4) 0.57 (14.6) 2.93 (74.5) 1.57 (40) 0.79 (20) 1.46 (37.2) 1.35 (34.2) 3.89 (98.8) 5.21 (132.4) 6.20 (157.4) 0.63 (15.9) North American Flat Single Hole, Type TTI Dimensions - 1300V Fuses TYPE TTI C Catalog Number A 2.91 [74] 106 2.85 MAX [72.5] 0.2 [5.03] B A LA130URD70TTI (63-315) LA120URD70TTI (350) LA130URD71TTI (160-450) LA120URD71TTI (550-630) LA130URD72TTI (280-630) LA120URD72TTI (700-800) LA130URD73TTI (315-900) LA120URD73TTI (1000) LA110URD73TTI (1250) LA090URD73TTI (1400) LA070URD73TTI (1600) LA065URD73TTI (1800) www.littelfuse.com Dimensions for reference only. Dimensions in Inches (mm) A B C 1.57 1.00 5 16 -18 x 0.23 DP (40) (26.4) 2.01 1.19 5 16 -18 x 0.36 DP (51) (30.2) 2.36 1.50 38 -18 x 0.36 DP (60) (38.1) 2.93 (74.5) 1.81 (46) -18 x 0.36 DP 12 (c) 2005 Littelfuse * POWR-GARDTM Products Catalog