special purpose fuses 90 w w w . l i t t e l f u s e . c o m special purpose fuses ? 2005 littelfuse ? powr-gard ? products catalog la 30 qs 600 -4 ti style littelfuse ampere rating mounting type voltage (300) integral blown- fuse indicator ferrule 1 blades/bolt-in 4 hockey puck, bolt-in 128 trigger indicator ti trigger actuator il la30qs semiconductor fuses 300 vac ? very fast acting ? 35 C 4500 amperes specifications voltage rating: ac: 300 volts dc: 300 volts interrupting rating: 200,000 amperes ampere range: 35 C 4500 amperes approvals: ul recognized under the components program. littelfuse la30qs series semiconductor protection fuses are intended for the protection of power semiconductors such as diodes, phase control scrs 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 i 2 t 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 note: mounting types and integral blown fuse indicators are optional for specified ratings. contact littelfuse for characteristic curves.
special purpose fuses 91 w w w . l i t t e l f u s e . c o m special purpose fuses ? 2005 littelfuse ? powr-gard ? products catalog la30qs semiconductor fuses 300 vac ? very fast acting ? 35 C 4500 amperes ampere rating littelfuse catalog number mounting type maximum clearing i 2 t @300 vac (a 2 s x 10 3 ) watts loss @ rated current (w) 35 la30qs35-4 4 0.9 6.4 40 la30qs40-4 4 1.2 7 50 la30qs50-4 4 2 9.9 60 la30qs60-4 4 2.7 11.6 70 la30qs70-4 4 1.6 11 80 la30qs80-4 4 2.6 11 90 la30qs90-4 4 3.2 13 100 la30qs100-4 4 4.1 13 100 la30qs100-4ti 4ti 4.1 13 125 la30qs125-4 4 6.3 16 130 la30qs130-4 4 6.3 16 150 la30qs150-4 4 9.3 19 150 la30qs150-4ti 4ti 9.3 19 175 la30qs175-4 4 10 27 200 la30qs200-4 4 15 30 200 la30qs200-4ti 4ti 15 30 225 la30qs225-4 4 22 33 250 la30qs250-4 4 25 41 250 la30qs250-4ti 4ti 25 41 300 la30qs300-4 4 37 47 300 la30qs300-4ti 4ti 37 47 350 la30qs350-4 4 62 49 400 la30qs400-4 4 83 56 400 la30qs400-4il 4il 83 56 400 la30qs400-4ti 4ti 83 56 450 la30qs450-4 4 130 53 catalog numbers & technical data ampere rating littelfuse catalog number mounting type maximum clearing i 2 t @300 vac (a 2 s x 10 3 ) watts loss @ rated current (w) 500 la30qs500-4 4 160 59 550 la30qs550-4 4 190 65 600 la30qs600-4 4 230 69 600 la30qs600-4ti 4ti 230 69 600 la30qs600-4il 4il 230 69 700 la30qs700-4 4 260 90 700 la30qs700-128 128 260 73 800 la30qs800-4 4 330 108 800 la30qs800-4il 4il 330 108 800 la30qs800-128 128 330 84 1000 la30qs1000-128 128 460 105 1000 la30qs1000-128il 128il 460 105 1200 LA30QS1200-128 128 880 110 1500 la30qs1500-128 128 1400 140 1500 la30qs1500-128il 128il 1400 140 1600 la30qs1600-128 128 1690 150 2000 la30qs2000-128 128 2600 190 2000 la30qs2000-128il 128il 2600 190 2500 la30qs2500-128 128 4000 230 2500 la30qs2500-128il 128il 4000 230 3000 la30qs3000-128 128 4700 340 3500 la30qs3500-128 128 6500 380 3500 la30qs3500-128il 128il 6500 380 4000 la30qs4000-128 128 8600 450 4500 la30qs4500-128 128 11000 500 1.17 c a d b e f 0.50 ta p [ 29.8 mm ] [ 12.8 mm ] figure 1 figure 2 figure 3 figure 4 figure 5 figure 6 dimensions dimensions for reference only . amperes mount. type fig. no. dimensions in inches (mm in parentheses) tap a b c d e f g h 35 C 60 4 1 3.19 (81.0) 0.81 (20.6) 1.63 (41.4) 2.50 (63.5) 2.25 (57.5) 0.34 (8.6) 0.72 (18.3) 0.13 (3.3) C 70 C 200 4 2 3.13 (79.5) 1.22 (31.0) 1.63 (41.4) 2.44 (62.0) 2.31 (58.7) 0.31 (7.9) 1.00 (25.4) 0.19 (4.8) C 225 C 700 4, 4il* 2, 3* 3.84 (97.5) 1.50 (38.1) 1.59 (40.1) 2.91 (73.9) 2.28 (57.9) 0.41 (10.4) 1.00 (25.4) 0.25 (6.4) C 700 C 1200 128 4 2.59 (65.8) 3.00 (76.2) 2.34 (59.4) 2.50 (63.5) 1.50 (38.1) C C C 3 ? 8 -24- 1 ? 2 deep 1500 C 2500 128, 128il* 5, 6* 2.59 (65.8) 3.50 (88.9) 2.34 (59.4) 3.00 (76.2) 1.50 (38.1) 1.50 (38.1) C C 3 ? 8 -24- 1 ? 2 deep 3000 C 4500 128, 128il* 5, 6* 2.59 (65.8) 4.50 (114) 2.34 (59.4) 3.75 (95.3) 1.50 (38.1) 1.50 (38.1) C C 1 ? 2 -20- 1 ? 2 deep * optional actuator (il)
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