supply of combination fuse switch units, rated current 300 amp, metal clad, triple po le with neutral link, degree of protection ip- 23, as per is/iec 60947 (part -1/2004) & is/iec 60947 (part-3/1999) quick make & break, interlockable cover, uninterrupted duty, utiliza tion category ac-23 a with three number high rupturing capacity (80 ka minimum), cartri dge fuses with bolted connection. rated voltage 415 volt, 50 hz ac, conforming to is:1 3703 (pt.1)/1993. (reaffirmed 2004) & is:13703 (pt.2)/section 1 & 2)/1993 (reaffirmed-2004). en closure shall be made of crc sheet of thickness not less than1.2 mm. [ warranty period : 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]