westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 1 of 8 march, 2005 date:- 18 mar, 2005 data sheet issue:- 1 ultra rapid semiconductor protection fuse american square body type fuses key features: ? 690v voltage rating complying with iec, din and vde standards ? exceptionally low i 2 t, power losses ? non magnetic construction, highly re liable low voltage indicator system ? conform to ul, iec, din and vde standards ? increased technical performance give higher ratings and a reduction in volume and weight ? all models with integrated trip-indicator ? microswitch system reference ms 3v 1-5 american end contacts voltage ratings 450v to 700v current ratings 63a to 2500a sizes 0 , 1 , 2 , 3
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 2 of 8 march, 2005 main characteristics: size voltage u n (v) ref: current rating i n (a) pre-arcing i 2 t @ 1 ms i 2 t p (ka 2 s) total clearing i 2 t @ u n (ka 2 s) watt losses 0.8i n i n tested interrupting rating 070us0u0063b 63 0.20 1.10 7.5 14 070us0u0080b 80 0.33 1.8 9.5 19 070us0u0100b 100 0.47 2.5 13 26 070us0u0125b 125 0.85 4.5 15 30 070us0u0160b 160 1.6 8.5 18.5 37 070us0u0200b 200 3 15.5 21.5 42 070US0U0250B 250 5.8 30 25 48 070us0u0315b 315 12 62 22.5 53 070us0u0350b 350 15.5 80 30 57 070us0u0400b 400 23 120 32.5 60 070us0u0450b 450 26 150 44 80 070us0u0500b 500 41 240 44 80 0 700v 070us0u0550b - 550 52 300 45 80 170ka / 700v notes: minimum operating voltage for integrated trip indicator = 20v. micro switch reference: ms 3v 1-5 shaded data; not included on curves, refer to factory. size voltage u n (v) ref: current rating i n (a) pre-arcing i 2 t @ 1 ms i 2 t p (ka 2 s) total clearing i 2 t @ u n (ka 2 s) watt losses 0.8i n i n tested interrupting rating 070us1u0200b 200 2.60 13.50 22.5 45 070us1u0250b 250 4.70 25.00 25.5 52 070us1u0315b 315 7.50 40.00 32.5 65 070us1u0350b 350 10.50 55.00 33.5 67 070us1u0400b 400 19.00 100.00 34.0 68 070us1u0450b 450 26.50 140.00 35.0 70 070us1u0500b 500 37.00 195.00 36.0 70 070us1u0550b 550 52.00 280.00 37.5 70 070us1u0630b 630 75.00 390.00 42.5 75 070us1u0700b 700 95.00 490.00 42.5 85 1 700v 070us1u0800b 800 140.00 800.00 60.0 105 170ka / 700v notes: minimum operating voltage for integrated trip indicator = 20v. micro switch reference: ms 3v 1-5 shaded data; not included on curves, refer to factory.
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 3 of 8 march, 2005 size voltage u n (v) ref: current rating i n (a) pre-arcing i 2 t @ 1 ms i 2 t p (ka 2 s) total clearing i 2 t @ u n (ka 2 s) watt losses 0.8i n i n tested interrupting rating 070us2u0400b 400 15 80 32.5 75 070us2u0450b 450 20 115 40 80 070us2u0500b 500 28 145 45 90 070us2u0550b 550 37 195 47.5 95 070us2u0630b 630 54 280 52.5 105 070us2u0700b 700 76 400 55 110 700v 070us2u0800b 800 115 600 60 120 170 ka / 700v 070us2u0900b 900 170 900 62.5 125 690v +6% 070us2u1000b 1000 240 1250 67.5 135 200 ka / 700v 650v 065us2u1100b 1100 270 1670 165 160ka @ 650v 600v 060us2u1250b 1250 410 2400 180 150ka @ 600v 055us2u1400b 1400 555 3400 190 550v 055us2u1600b 1600 870 5300 195 130ka @ 550v 2 500v 050us2u1800b 1800 1050 8700 230 110ka @ 500v notes: minimum operating voltage for integrated trip indicator = 20v. micro switch reference: ms 3v 1-5 shaded data; not included on curves, refer to factory. size voltage u n (v) ref: current rating i n (a) pre-arcing i 2 t @ 1 ms i 2 t p (ka 2 s) total clearing i 2 t @ u n (ka 2 s) watt losses 0.8i n i n tested interrupting rating 070us3u0500b 500 19 100 52.5 105 070us3u0550b 550 27 140 55 105 070us3u0630b 630 40 210 60 110 070us3u0700b 700 55 300 62.5 115 070us3u0800b 800 95 490 65 120 070us3u0900b 900 135 700 67.5 120 070us3u1000b 1000 170 900 77.5 135 700v 070us3u1100b 1100 240 1260 80 135 170 ka / 700v 070us3u1250b 1250 350 1850 90 150 690v +6% 070us3u1400b 1400 480 2400 100 160 200 ka / 700v 065us3u1600b - 1600 555 2900 120 210 650v 065us3u1800b 1800 720 3870 - 225 160ka @ 650v 600v 060us3u2000b 2000 950 4800 - 250 150ka @ 600v 550v 055us3u2250b 2250 1250 5160 - 280 130ka @ 550v 3 500v 050us3u2500b 2500 1870 6540 - 280 110ka @ 500v notes: minimum operating voltage for integrated trip indicator = 20v. micro switch reference: ms 3v 1-5 shaded data; not included on curves, refer to factory. electrical characteristics: times vs current characteristics the curves shown on page 4 indicate the pre-arcing time for each rated current as a function of rms value of pre-arcing current i: - tolerances on this current 8% - beyond 30 sec or 10 sec, small overloads must be eliminated by another device.
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 4 of 8 march, 2005 curve cc? represents the maximum times taken by the associated device to clear small overloads; only its horizontal line is represented. its oblique line must be plotted according to sketch in top right corner: - the intersection of the fuse and cc? curves indicates the minimum breaking current i pm of the fuse. size 0 size 1 size 2 size 3
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 5 of 8 march, 2005 total clearing i2t: the horizontal curves given below indicate d the maximum values of total operating i 2 t (i 2 t t ) as a function of prospective current ip @ 660v, cos ? = 0.15. oblique lines indicate the corresponding total operating time t t , with pre-arcing time in brackets. size 0 size 1 size 2 size 3
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 6 of 8 march, 2005 cut off characteristics: the curves below indicate, for each rated current, the peak value i c that the current may reach as a function of the prospective fault current ip. size 0 size 1 size 2 size 3
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 7 of 8 march, 2005 corrective factor C peak arc voltage: i 2 t multiplier coefficient peak arc voltage the above mean curve shows variation of total clearing time (i 2 t t ) and total operating time t t in accordance with working voltage u. curve indicating peak arc voltage um which may appear across fuse terminals as a function of working voltage u @ cos ? dissipated power curve enabling calculation of dissipated power p by a fuse rated i n , as a function of the rms current i, in multiples of i n in a steady state.
westcode an ixys company american square body fuses ? end contacts data sheet: 070usxu xxxxb issue 1 page 8 of 8 march, 2005 outline drawing & ordering information: dimensions (mm) size a b c d e d imperial g p weight 0 40 46.5 82 26 50.6 5/16-18? 9 6 245g 1 51 56.5 91 30 50.6 5/16-18? 9 9 370g 2 60 65.5 100 38 / 42* 50.6 3/8-16? 15 9 510g / 600g 3 74.5 79.5 114 46 / 52* 50.6 1/ 2-13? 15 9 790g / 910g *size 2 from 900a and size 3 from 1250a ordering information (please quote code as below) voltage rating (v) type size fixing cu rrent rating amps indicator type 700 us 0, 1, 2, or 3 u 0063 ? 1600 b order code: eg. 070us3u0063b = 700v, american square body fuse with end contacts, size 3, imperial thread, 63a with button indicator ixys semiconductor gmbh edisonstra?e 15 d-68623 lampertheim tel: +49 6206 503-0 fax: +49 6206 503-627 e-mail: marcom@ixys.de westcode semiconductors ltd langley park way langley park chippenham wiltshire sn15 1ge tel: +44 (0)1249 444524 fax: +44 (0)1249 659448 e-mail: wsl.sales@westcode,com ixys corporation 3540 bassett street santa clara ca 95054 usa tel: +1 (408) 982 0700 fax: +1 (408) 496 0670 e-mail: sales@ixys.com www.westcode.com www.ixys.com westcode semiconductors inc 3270 cherry avenue long beach ca 90807 usa tel: +1 (562) 595 6971 fax: +1 (562) 595 8182 e-mail: wsi.sales@westcode.com the information contained herein is confidential and is protected by copyright. the information may not be used or disclosed ex cept with the written permission of and in the manner permitted by the proprietors westcode semiconductors ltd. in the interest of product improvement, westcode reserves the ri ght to change specifications at any time without prior notice. ? westcode semiconductors ltd.
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