POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES HF 700 Vac/dc • 35-800 A • Traditional Round Body Bolted Style Specifications Voltage Rating AC: 700V DC: 700V Amperage Rating 35 - 800 A Interrupting Rating AC: 200 kA DC: 50 kA Time Constant10ms Material Body: Melamine Caps: Copper Alloy (Silver Plated) Approvals UL Recognized (E71611) c-UR-us (E71611) Environmental RoHS Compliant, REACH Country of OriginMexico Description Part Numbering System The L70QS Series is a next generation High-Speed Fuse for the protection of power semiconductor devices and is designed in the Traditional North American Bolted Style package. L70 QS 700 X Series L70QS Series High-Speed Fuses are extremely current limiting and are used to protect power converters, drives and control circuit applications. Designed with lower I2t performance characteristics, these fuses provide balanced performance to extend longevity while lowering potentially damaging heat energy to the devices being protected. In addition L70QS Series fuses have been designed with a universal mounting option to meet customer requirements for installation into a variety of application configurations Littelfuse POWR-SPEED™ products offer optimized circuit protection at the extremely fast speed required to protect modern day, sensitive, high-power semiconductor devices. Such products are commonly found in various industries including pulp and paper industries, cranes and heavy-lifting equipment, processing industries, wastewater treatment plants and large factories and MRO facilities. Package Quantity Body Type X = 1 (225 - 800A) V = 5 (35 - 200A) Ampere Code SERIES L70 BODY AMPERE TYPE CODE QS 700 PACKAGE QUANTITY CATALOG NUMBER ORDERING NUMBER 1 L70QS700 L70QS700.X Recommended Fuse Blocks LSCR001 (35-100A) LSCR002 (125-800A) Features • • • • Compliance with US and Canadian Requirements Traditional North American Bolted Style dimensions Class aR performance Direct bus-bar mount or stud mount design • Halogen Free, RoHS and REACH Compliant Applications • • • • Power Converters (Inverters, Rectifiers) Power Supplies UPS Variable Speed Drives Web Resources • Control Circuits Download technical documents: littelfuse.com/L70QS • Soft Starters littelfuse.com 1 of 11 © 2016 Littelfuse POWR-GARD® Products Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Electrical Specifications TOTAL CLEARING I2T (A2s) WATTS LOSS WATTS LOSS AT 80% RATED AT 100% RATED CURRENT CURRENT AMPERAGE RATING TOTAL CLEARING I2T (A2s) CATALOG NUMBER (W) (W) L70QS035 35 700 700 200kA 50kA 129 332 308 5 8 L70QS040 40 700 700 200kA 50kA 153 599 416 6 9 L70QS050 50 700 700 200kA 50kA 196 711 588 6 12 L70QS060 60 700 700 200kA 50kA 269 1,233 678 9 15 L70QS070 70 700 700 200kA 50kA 359 1,575 1,075 10 20 L70QS080 80 700 700 200kA 50kA 452 2,755 1,415 12 22 L70QS090 90 700 700 200kA 50kA 625 3,365 1,920 13 25 L70QS100 100 700 700 200kA 50kA 966 3,747 2,347 15 30 L70QS125 125 700 700 200kA 50kA 2,208 8,795 5,570 13 24 L70QS150 150 700 700 200kA 50kA 3,026 13,650 8,195 17 32 38 VOLTAGE RATING INTERRUPT RATING AC DC AC MELTING (PRE-ARC) I2T (A2s) DC 200 kA @ 700 Vac 50 kA @ 700 Vdc L70QS175 175 700 700 200kA 50kA 4,219 19,550 11,650 20 L70QS200 200 700 700 200kA 50kA 5,529 22,067 16,100 22 42 L70QS225 225 700 700 200kA 50kA 9,226 34,900 25,400 22 40 L70QS250 250 700 700 200kA 50kA 10,999 43,750 31,650 27 46 L70QS300 300 700 700 200kA 50kA 16,296 64,400 45,500 31 57 L70QS350 350 700 700 200kA 50kA 24,778 91,500 65,250 35 67 L70QS400 400 700 700 200kA 50kA 34,225 110,667 94,666 41 79 L70QS450 450 700 700 200kA 50kA 38,946 145,500 113,500 45 81 L70QS500 500 700 700 200kA 50kA 42,747 173,000 125,500 56 112 L70QS600 600 700 700 200kA 50kA 67,363 220,333 179,667 67 138 L70QS700 700 700 700 200kA 50kA 99,387 368,000 298,000 72 138 L70QS800 800 700 700 200kA 50kA 156,137 466,333 415,333 76 142 Ordering Information SERIES AMPERAGE RATING AMPERE CODE CATALOG NUMBER ORDERING NUMBER PACK QUANTITY UPC L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS L70QS 35 40 50 60 70 80 90 100 125 150 175 200 225 250 300 350 400 450 500 600 700 800 035 040 050 060 070 080 090 100 125 150 175 200 225 250 300 350 400 450 500 600 700 800 L70QS035 L70QS040 L70QS050 L70QS060 L70QS070 L70QS080 L70QS090 L70QS100 L70QS125 L70QS150 L70QS175 L70QS200 L70QS225 L70QS250 L70QS300 L70QS350 L70QS400 L70QS450 L70QS500 L70QS600 L70QS700 L70QS800 L70QS035.V L70QS040.V L70QS050.V L70QS060.V L70QS070.V L70QS080.V L70QS090.V L70QS100.V L70QS125.V L70QS150.V L70QS175.V L70QS200.V L70QS225.X L70QS250.X L70QS300.X L70QS350.X L70QS400.X L70QS450.X L70QS500.X L70QS600.X L70QS700.X L70QS800.X 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 5 Pcs/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 1 Pc/ Box 07945886015 07945886016 07945886017 07945886018 07945886019 07945886020 07945886021 07945886022 07945886023 07945886024 07945886025 07945886026 07945886027 07945886028 07945886029 07945886030 07945886031 07945886032 07945886033 07945886034 07945886035 07945886036 littelfuse.com 2 of 11 © 2016 Littelfuse POWR-GARD® Products Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Dimensions Millimeters [inches] Document Number: OL-L70QS000 17.02 [0.670] 38.10 [1.500] 22.73 [0.895] 10.41 [0.410] 8.73 [0.344] 111.13 [4.375] 10.41 [0.410] 129.16 [5.085] 95.24 [3.749] 106.30 [4.185] 73.03 [2.875] 84.12 [3.312] 129.39 [5.094] 108.72 [4.280] 73.03 [2.875] 35-100A 125-200A 225-400A 6.35 [0.250] 4.75 [0.187] 3.18 [0.125] ∅ 25.40 ∅ 30.94 [1.000] ∅ 50.80 [1.218] Stud Size: M8 (5/16”) Recommended Torque: 15 Nm (132.76 in-lb) 72.24 [2.844] 86.76 [3.416] 88.77 [3.495] [2.000] Stud Size: M8 (5/16”) Recommended Torque: 15 Nm (132.76 in-lb) Stud Size: M8 (5/16”) Recommended Torque: 15 Nm (132.76 in-lb) 50.80 [2.000] 38.10 [1.500] 13.46 [0.530] 13.46 [0.530] 173.05 [6.813] 180.08 [7.090] 142.83 [5.623] 156.47 [6.160] 89.67 [3.530] 103.20 [4.063] 72.24 [2.844] 700-800A 450-600A 9.53 [0.375] 6.35 [0.250] ∅ 50.80 ∅ 63.50 [2.000] [2.500] Stud Size: M12 (1/2”) Recommended Torque: 54 Nm (477.94 in-lb) littelfuse.com 72.24 [2.844] Stud Size: M12 (1/2”) Recommended Torque: 54 Nm (477.94 in-lb) 3 of 11 © 2016 Littelfuse POWR-GARD® Products Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Time Current Curve 40000 50000 60000 70000 80000 90000 100000 30000 20000 4000 5000 6000 7000 8000 9000 10000 3000 2000 400 500 600 700 800 900 1000 300 200 40 50 60 70 80 90 100 30 20 4 5 6 7 8 9 10 3 2 1 L70QS Series 100 90 80 70 60 50 40 100 90 80 70 60 50 40 30 30 20 20 10 9 8 7 6 5 4 - 60A 10 9 8 7 6 5 4 3 - 50A 3 2 - 40A 2 MELTING (PRE‐ARCING) TIME IN SEC CONDS - 35A 1 0.9 0.8 0.7 0.6 0.5 04 0.4 1 0.9 0.8 0.7 0.6 0.5 04 0.4 0.3 0.3 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.03 0.02 0.02 0.01 0.0090 0.0080 0.0070 0.0060 0.0050 0.0040 0.01 0.0090 0.0080 0.0070 0.0060 0.0050 0.0040 0.0030 0.0030 0.0020 0.0020 0.0010 0.0009 0.0008 0.0007 0.0006 0.0005 0.0004 0.0010 0.0009 0.0008 0.0007 0.0006 0.0005 0.0004 0 0003 0.0003 0 0003 0.0003 0.0002 0.0002 0.0001 0.0001 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: 700V TIME CONSTANT/POWER FACTOR: L70QS 35A - 800A BASIS FOR DATA: littelfuse.com FUSE CATALOG NUMBER: LITTELFUSE, INC. CHICAGO, IL. USA 4 of 11 TIME CURRENT CHARACTERISTIC CURVES DRAWN BY: LLL DATE: 10/15/2015 REVISION: A DRAWING NO.: © 2016 Littelfuse POWR-GARD® Products FCC01-L70QS FCC01 L70QS Rev: 060616 SHEET 2 OF 4 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Time Current Curve L70QS Series MELTING (PRE‐ARCING) TIME IN SEC CONDS 200000 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100 90 80 70 60 50 40 100 90 80 70 60 50 40 30 30 20 20 10 9 8 7 6 5 4 10 9 8 7 6 5 4 - 600A 3 - 500A 3 2 - 450A 2 1 0.9 0.8 0.7 0.6 0.5 04 0.4 1 0.9 0.8 0.7 0.6 0.5 04 0.4 - 200A - 175A - 150A 0.3 0.3 - 125A 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.03 0.02 0.02 0.01 0.0090 0.0080 0.0070 0.0060 0.0050 0.0040 0.01 0.0090 0.0080 0.0070 0.0060 0.0050 0.0040 0.0030 0.0030 0.0020 0.0020 0.0010 0.0009 0.0008 0.0007 0.0006 0.0005 0.0004 0.0010 0.0009 0.0008 0.0007 0.0006 0.0005 0.0004 0 0003 0.0003 0 0003 0.0003 0.0002 0.0002 0.0001 0.0001 200000 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: 700V TIME CONSTANT/POWER FACTOR: L70QS 10A - 800A BASIS FOR DATA: LITTELFUSE, INC. littelfuse.com FUSE CATALOG NUMBER: CHICAGO, IL. USA 5 of 11 TIME CURRENT CHARACTERISTIC CURVES DRAWN BY: LLL DATE: 10/15/2015 REVISION: A DRAWING NO.: © 2016 Littelfuse POWR-GARD® Products FCC01-L70QS FCC01 L70QS SHEET 3 OF 4 Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Time Current Curve L70QS Series 200000 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 100 90 80 70 60 50 40 100 90 80 70 60 50 40 - 800A 30 30 - 700A 20 20 10 9 8 7 6 5 4 10 9 8 7 6 5 4 3 3 2 2 MELTING (PRE‐ARCING) TIME IN SEC CONDS - 400A - 350A 1 0.9 0.8 0.7 0.6 0.5 04 0.4 1 0.9 0.8 0.7 0.6 0.5 04 0.4 - 300A - 250A - 225A 0.3 0.3 0.2 0.2 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.03 0.02 0.02 0.01 0.0090 0.0080 0.0070 0.0060 0.0050 0.0040 0.01 0.0090 0.0080 0.0070 0.0060 0.0050 0.0040 100A - 0.0030 0.0030 90A - 0.0020 0.0020 80A 70A - 0.0010 0.0009 0.0008 0.0007 0.0006 0.0005 0.0004 0.0010 0.0009 0.0008 0.0007 0.0006 0.0005 0.0004 0 0003 0.0003 0 0003 0.0003 0.0002 0.0002 0.0001 0.0001 200000 100000 90000 80000 70000 60000 50000 40000 30000 20000 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 900 800 700 600 500 400 300 200 100 PROSPECTIVE R.M.S CURRENT IN AMPERE TEST VOLTAGE: 700V TIME CONSTANT/POWER FACTOR: L70QS 10A - 800A BASIS FOR DATA: LITTELFUSE, INC. littelfuse.com FUSE CATALOG NUMBER: CHICAGO, IL. USA 6 of 11 TIME CURRENT CHARACTERISTIC CURVES DRAWN BY: LLL DATE: 10/15/2015 REVISION: A DRAWING NO.: © 2016SHEET Littelfuse POWR-GARD® Products 4 OF 4 FCC01-L70QS FCC01 L70QS Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Peak Let-Thru Curve 200,000 60,000 70,000 80,000 90,000 100,000 50,000 40,000 30,000 20,000 6,000 7,000 8,000 9,000 10,000 5,000 4,000 3,000 2,000 600 700 800 900 1,000 500 400 300 200 100 L70QS Series 100,000 90,000 80,000 100,000 90,000 80,000 70,000 70,000 60,000 60,000 50,000 800A - 50,000 40,000 600A - 40,000 30,000 400A - 30,000 200A 20,000 20,000 100A - 10,000 9,000 8,000 10,000 9,000 8,000 7,000 7,000 6,000 6,000 5,000 5,000 4,000 4,000 3,000 3,000 2,000 2,000 1,000 900 800 1,000 900 800 200,000 60,000 70,000 80,000 90,000 100,000 50,000 20,000 40,000 100 30,000 100 6,000 7,000 8,000 9,000 10,000 200 5,000 200 4,000 300 3,000 300 2,000 400 600 700 800 900 1,000 500 400 500 500 400 600 300 700 600 200 700 100 PEAK LET- THRU IN AMPERES 60A - AVAILABLE FAULT CURRENT SYMMETRICAL R.M.S. AMPERES TEST VOLTAGE: TIME CONSTANT/POWER FACTOR: BASIS FOR DATA: littelfuse.com 7 of 11 LITTELFUSE, INC. FUSE CATALOG NUMBER: L70QS 60A -©800A 2016 Littelfuse POWR-GARD® Products DRAWN BY: LLL DATE: Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Temperature De-rating Curve (Temperature of Air Immediately Surrounding Fuse) PERCENT OF UPRATING L70QS Series 60 40 20 0 20 40 60 -60˚ C -76˚ F -40˚ C -40˚ F -20˚ C -4˚ F 0˚ C -32˚ F 20˚ C 68˚ F 40˚ C 104˚ F 60˚ C 140˚ F 80˚ C 176˚ F 100˚ C 212˚ F 120˚ C 248˚ F PERCENT OF DOWNRATING 0 140˚ C 284˚ F AMBIENT TEMPERATURE littelfuse.com 8 of 11 © 2016 Littelfuse POWR-GARD® Products Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Total Clearing I2t Correction Factor Curve L70QS Series 700 600 500 400 300 200 100 TOTAL CLEARING I2T CORRECTION FA ACTOR 1 1 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 - 35A - 800A 0.3 0.3 0.2 0.2 0.1 0.1 700 600 500 400 300 200 100 OPERATING VOLTAGE IN VOLT TEST VOLTAGE: 100V - 500V TIME CONSTANT/POWER FACTOR: L50S 35A 35-800A L70QS - 800A BASIS FOR DATA: littelfuse.com FUSE CATALOG NUMBER: LITTELFUSE, INC. CHICAGO, IL. USA 9 of 11 DRAWN BY: LLL DATE: 01/26/2015 10/30/2015 REVISION: A © 2016 Littelfuse POWR-GARD® Products Rev: 060616 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Watts Loss Correction Factor Curve L70QS Series 100 90 80 70 60 50 40 30 WATTS LO OSS CORRECTION FACTTOR 1 1 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 - 35A - 800A 0.3 0.3 0.2 0.2 0.1 0.1 100 90 80 70 60 50 40 30 PERCENT OF RATED CURRENT (%) TEST VOLTAGE: 700V TIME CONSTANT/POWER FACTOR: FUSE CATALOG NUMBER: L50S 35-800A L70QS 35A-800A BASIS FOR DATA: littelfuse.com LITTELFUSE, INC. 10 of 11 CHICAGO, IL. USA DRAWN BY: LLL DATE: 01/26/2015 10/30/2015 REVISION: A DRAWING NO.: © 2016 Littelfuse POWR-GARD® Products Rev: 060616 SHEET 2 3 OF 2 3 POWR-SPEED™ Fuse Datasheet L70QS SERIES HIGH-SPEED ROUND BODY FUSES Peak Arc Voltage Curve L70QS Series PEA AK ARC VOLTAGE IN VO OLT 700 600 500 400 300 200 2000 2000 1800 1800 1600 1600 1400 1400 1200 1200 1000 1000 800 800 600 600 400 400 200 200 700 600 500 400 300 200 OPERATING VOLTAGE IN VOLTS TEST VOLTAGE: 200V - 700V TIME CONSTANT/POWER FACTOR: L70S35A 35-800A L70QS - 800A BASIS FOR DATA: littelfuse.com FUSE CATALOG NUMBER: LITTELFUSE, INC. CHICAGO, IL. USA 11 of 11 MAX ARC VOLTAGE MAX ARC VOLTAGE VARIATION CURVE ARC VOLTAGE ARC VOLTAGE VARIATION CURVE DRAWN BY: LLL DATE: 01/26/2015 10/30//2015 REVISION: A DRAWING NO.: © 2016 Littelfuse POWR-GARD® Products Rev: 060616 SHEET 2 3 OF 2 3