A50QS ETC2
Document overview
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Technical content
® AC: 35-60A 500VAC, 200kA I.R. 70-1200A 500VAC, 200kA I.R. ® DC: 35-1200A 500VDC, 100kA I.R. Ratings A50QS Amp-trap® 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 I 2t 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. ® UL Recognized Component ® AC: UL Guide No. JFHR2 ® DC Tested to UL Standard 198L parameters (70-1200A) ® CSA Certified LR12636 Approvals A 50 QS 250 - 4 Amp-trap® Fuse Rated Volts - 500 Style Amperes* Mounting Type* Blades, bolt-in * For ampere ratings and types not listed, consult the factory . Catalog Numbering System A QS 250 FUSE FUSE BLOCK AMPERE MOUNTING CATALOG RATING TYPE NUMBER 1 - 30 35-200 4 P243E 225-600 4 P266C Single Pole Fuse Blocks for A50QS Fuses Features/Benefits ® Lowest l2t for greatest protection of semiconductor circuits ® Low watts loss for cooler operation ® Superior cycling abilitygives an equipment design advantage ® State-of-the-art protectionfor 500 volt equipment ® Ultra compact sizesallow down-sizing of existing equipment HIGHLIGHTS: ® 500V AC/DC Rated ® Lowest l2t ® Low Watts Loss ® Superior Cycling Ability APPLICATIONS: ® Protection of 500V or less motor drives, UPS, inverters, etc. AMP-TRAP® –Form 101 A50QS SEMICONDUCTOR PROTECTION FUSES
D D 13 AMPERE CATALOG AMPERE CATALOG RATING NUMBER RATING NUMBER
35 A50QS35-4 250 A50QS250-4
40 A50QS40-4 300 A50QS300-4
50 A50QS50-4 350 A50QS350-4
60 A50QS60-4 400 A50QS400-4
70 A50QS70-4 450 A50QS450-4
80 A50QS80-4 500 A50QS500-4
90 A50QS90-4 600 A50QS600-4
100 A50QS100-4 700 A50QS700-4
125 A50QS125-4 800 A50QS800-4
150 A50QS150-4 900 A50QS900-4
175 A50QS175-4 1000 A50QS1000-4
200 A50QS200-4 1200 A50QS1200-4
225 A50QS225-4
Standard Fuse Ampere Ratings, Catalog Numbers For ampere ratings and styles not listed, call Technical Services. Dimensions CATALOG MOUNTING DIMENSIONS - INCHES (mm) NUMBER TYPE A B C D E F G H Percent Rated Current Correction Factor for Watts Loss Watts Loss vs. Percent Rated Current AMPERE WATTS RATING LOSS(w) 35 6 40 7 50 8 60 10 70 12 80 14 90 15 100 17 125 21 150 25 175 29 200 33 225 37 AMPERE WATTS RATING LOSS(w) 250 41 300 49 350 57 400 65 450 69 500 77 600 92 700 110 800 130 900 140 1000 160 1200 175 Watts Loss at Rated Current Correction factor example: At 80% rated current, watts loss equals .54 times watts loss at rated current. AMP-TRAP® –Form 101 A50QS SEMICONDUCTOR PROTECTION FUSES
Circuit Voltage (Volts RMS) Maximum Peak Arc Volts Maximum Arc Volts vs. System Voltage Melting Time – Current Data, 500V Fuses Available Current in RMS Symmetrical Amperes Maximum Instantaneous Peak Let-Thru Amperes Peak Let-Thru Current Data – A50QS35 to 1200, 500 Volts AC AMP-TRAP® –Form 101 A50QS SEMICONDUCTOR PROTECTION FUSES Time in Seconds Current in Amperes
D D 15 Operating Voltage (AC RMS Volts) Correction Factor for I2t Clearing I2t vs. AC Operating Voltage I2t DATA FUSE MAX. CLEARING I 2t @ 500VAC AMPERE MELTING I t 1 FUSE (Fig A) 2 FUSES IN SERIES RATING (A s x 10 )( A s x 10 )( A s x 10 )(Fig B) 35 .09 .56 .34 40 .11 .69 .4 50 .18 1.1 .68 60 .25 1.6 .94 70 .31 1.9 1.1 80 .43 2.6 1.5 90 .57 3.6 2.1 100 .74 4.4 2.7 125 .94 5.6 3.4 150 1.5 9 5.4 175 2.5 15 9 200 3.3 20 12 225 4.1 25 15 250 4.9 29 18 300 9.2 55 33 350 15 88 53 400 16 98 59 450 21 130 76 500 26 160 94 600 37 220 130 700 53 270 160 800 72 360 220 900 98 500 300 1000 112 560 330 1200 200 930 550 Load500 VAC Fault Fig. A Load500 VAC Fault Fig. B AMPERE CLEARING I2t AMPERE CLEARING I2t RATING ( A s x 10 3) RATING ( A s x 10 35 .48 250 25 40 .58 300 47 50 1.0 350 75 60 1.3 400 83 70 1.6 450 110 80 2.2 500 130 90 3.0 600 190 100 3.8 700 220 125 4.8 800 260 150 7.7 900 350 175 13 1000 430 200 17 1200 660 225 21 Clearing I2t at 500V DC, 100kA, L/R = 10 ms 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. L/R Time Constant (ms) DC Voltage Capability vs. Time Constant DC Voltage Capability AMP-TRAP® –Form 101 A50QS SEMICONDUCTOR PROTECTION FUSES I2t Data – 500 Volts AC