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| AMP-TRAP(R)-Form 101 A50QS SEMICONDUCTOR PROTECTION FUSES A50QS Amp-trap(R) Form 101 fuses grew out of the need to improve the overall performance of semiconductor fuses in response to new equipment requirements. The A50QS encompasses the best protection features - lower I2t to provide better protection for equipment, longer life when subjected to cyclic loading and lower watts loss. A50QS is today's best choice for the protection of dynamic solid state equipment such as motor drives, inverters, UPS, etc. Ratings (R) AC: 35-60A 500VAC, 200kA I.R. 70-1200A 500VAC, 200kA I.R. (R) DC: 35-1200A 500VDC, 100kA I.R. Approvals (R) UL Recognized Component (R) AC: UL Guide No. JFHR2 (R) DC Tested to UL Standard 198L parameters (70-1200A) (R) CSA Certified LR12636 Features / Benefits (R) Lowest l2t for greatest protection of semiconductor circuits (R) Low watts loss for cooler operation HIGHLIGHTS: 500V AC/DC Rated 2 (R) Lowest l t (R) Low Watts Loss (R) Superior Cycling Ability (R) APPLICATIONS: (R) Protection of 500V or less motor drives, UPS, inverters, etc. (R) Superior cycling ability gives an equipment design advantage (R) State-of-the-art protection for 500 volt equipment (R) Ultra compact sizes allow down-sizing of existing equipment Catalog Numbering System Amp-trap(R) Fuse Rated Volts - 500 A 50 QS 250 4 A 50 QS 250 - 4 Single Pole Fuse Blocks for A50QS Fuses FUSE AMPERE RATING 1 - 30 35-200 225-600 MOUNTING TYPE 4 4 FUSE BLOCK CATALOG NUMBER P243E P266C Style Amperes* Mounting Type* Blades, bolt-in * For ampere ratings and types not listed, consult the factory. D 12 AMP-TRAP(R)-Form 101 A50QS AMPERE RATING 35 40 50 60 70 80 90 100 125 150 175 200 225 CATALOG NUMBER A50QS35-4 A50QS40-4 A50QS50-4 A50QS60-4 A50QS70-4 A50QS80-4 A50QS90-4 A50QS100-4 A50QS125-4 A50QS150-4 A50QS175-4 A50QS200-4 A50QS225-4 AMPERE RATING 250 300 350 400 450 500 600 700 800 900 1000 1200 SEMICONDUCTOR PROTECTION FUSES CATALOG NUMBER A50QS250-4 A50QS300-4 A50QS350-4 A50QS400-4 A50QS450-4 A50QS500-4 A50QS600-4 A50QS700-4 A50QS800-4 A50QS900-4 A50QS1000-4 A50QS1200-4 Standard Fuse Ampere Ratings, Catalog Numbers For ampere ratings and styles not listed, call Technical Services. D 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) DIMENSIONS - INCHES (mm) D E 2.94 (74.7) 2.94 (74.7) 3.41 (86.6) 3.53 (89.7) 5.00 (127.0) 5.47 (138.9) 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) .53 (13.5) .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) .25 (6.4) .44 (11.1) Dimensions CATALOG NUMBER A50QS35 to 100 A50QS125 to 200 A50QS225 to 400 A50QS450 to 600 A50QS700 to 800 A50QS900 to 1200 MOUNTING TYPE 4 4 4 4 4 4 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) Watts Loss vs. Percent Rated Current Watts Loss at Rated Current AMPERE RATING 35 40 50 60 70 80 90 100 125 150 175 200 225 WATTS LOSS(w) 6 7 8 10 12 14 15 17 21 25 29 33 37 AMPERE RATING 250 300 350 400 450 500 600 700 800 900 1000 1200 WATTS LOSS(w) 41 49 57 65 69 77 92 110 130 140 160 175 Correction Factor for Watts Loss Correction factor example: At 80% rated current, watts loss equals .54 times watts loss at rated current. Percent Rated Current D 13 AMP-TRAP(R)-Form 101 A50QS SEMICONDUCTOR PROTECTION FUSES A50QS35 to 1200 Melting Time - Current Data, 500V Fuses Time in Seconds Current in Amperes Peak Let-Thru Current Data - A50QS35 to 1200, 500 Volts AC Maximum Instantaneous Peak Let-Thru Amperes Maximum Arc Volts vs. System Voltage Maximum Peak Arc Volts Circuit Voltage (Volts RMS) Available Current in RMS Symmetrical Amperes D 14 AMP-TRAP(R)-Form 101 A50QS I2t Data - 500 Volts AC I2t DATA FUSE MAX. CLEARING I2t @ 500VAC AMPERE MELTING I2t 1 FUSE (Fig A) 2 FUSES IN SERIES RATING 35 40 50 60 70 80 90 100 125 150 175 200 225 250 300 350 400 450 500 600 700 800 900 1000 1200 (A2s x 103) .09 .11 .18 .25 .31 .43 .57 .74 .94 1.5 2.5 3.3 4.1 4.9 9.2 15 16 21 26 37 53 72 98 112 200 (A2s x 103) .56 .69 1.1 1.6 1.9 2.6 3.6 4.4 5.6 9 15 20 25 29 55 88 98 130 160 220 270 360 500 560 930 (A2s x 103)(Fig B) .34 .4 .68 .94 1.1 1.5 2.1 2.7 3.4 5.4 9 12 15 18 33 53 59 76 94 130 160 220 300 330 550 SEMICONDUCTOR PROTECTION FUSES 500 VAC Fault Load 500 VAC Fault Load Fig. A Fig. B Clearing I2t vs. AC Operating Voltage Correction Factor for I t D 2 Operating Voltage (AC RMS Volts) Clearing I2t at 500V DC, 100kA, L/R = 10 ms AMPERE RATING 35 40 50 60 70 80 90 100 125 150 175 200 225 CLEARING I2t (A2s x 103) .48 .58 1.0 1.3 1.6 2.2 3.0 3.8 4.8 7.7 13 17 21 AMPERE RATING 250 300 350 400 450 500 600 700 800 900 1000 1200 CLEARING I2t (A2s x 103) 25 47 75 83 110 130 190 220 260 350 430 660 DC Voltage Capability vs. Time Constant DC Application: A50QS Fuses have been designed for both AC and DC operation. A50QS fuses (70-600) have UL Component Recognition at 500V DC and have been tested to circuit parameters as defined in Standard 198L. DC Voltage Capability L/R Time Constant (ms) D 15 |
Price & Availability of A50QS70-4
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