supply of procurement of 415 volts/110 volts, 400 va capacity isolation transformer in open execution suitable for mounting inside the control panel of rmpu etc , 415 volts/110 volts, 400 va capacity isolation transformer in open execution suitable fo r mounting inside the control panel of rmpu type ac coaches as per rdso spec. no. elps/ spec/ac/0 4 (rev.3) may-2009, input 415 volts, 2 phase, 50 hz and output 110 volts, 1 phase, 50 hz. material sh ould be procured as per the bill of material mentioned in rdso spec. no. elps/spec/ac/04 (rev. 3) ma y-2009. [ 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 ] ]