special purpose fuses special purpose fuses american fuses welder protectors a4bx 100 a4bx100-150 - j218876 - 125 a4bx125-150 - d212224 - 150 a4bx150-150 - s212743 - 200 A4BX200-150 A4BX200-150j h217334 m217844 225 a4bx225-150 - g211192 - 300 a4bx300-150 a4bx300-150j j215288 k215795 400 a4bx400-150 a4bx400-150j n217845 y218360 500 a4bx500-150 - m222605 - 600 a4bx600-150 - f201968 - ratings welder protectors ferraz shawmut welder protectors are special purpose limiters used to provide isolation of faulted welding equipment and protection for the cable drop supplying the welder. welder protectors have a high thermal capacity and are less affected by high ambient temperatures and extended weld times than similar size class j or k fuses*. welder protectors should only be applied for isolation of short circuited welding circuits. overload protection must be provided for by other means. * contact us for class l sizes and rating approvals ?600vac, 200ka i.r. ?ferraz shawmut certified standard fuse ampere ratings, reference numbers 125-200 5-3/4 1-1/2 3/16 1-1/8 1-1/2 4-3/8 3/8 9/32 225-400 7-1/8 2 1/4 1-5/8 2-3/16 5-1/4 17/32 13/32 class j class k catalog number reference number ampere class k class j class k class j rating dimension dimension dimension dimension sp 22 12/04 a4bx ( ) - 150; class k dimensions 100 7-7/8 1 1/8 23/32 2-5/8 - - - 125-200 9-5/8 1-1/2 3/16 1-1/8 3-7/16 - - - 225-400 11-5/8 2 1/4 1-5/8 4-7/16 - - - 500-600 13-3/8 2-1/2 1/4 2 5-5/16 - - - ampere inches rating a b c d e f g h a4bx ( ) - 150j; class j dimensions
special purpose fuses special purpose fuses sp 23 american fuses welder protectors a4bx 12/04 melting time - current data, 600v fuses current in amperes time in seconds available current in rms symmetrical amperes maximum instantaneous peak let-thru amperes peak let-thru current data ?a4bx100 to 600, 600 volts ac a4bx100 to 600 types 150, 150j
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