Tenders for Supply of Dc-Dc Converters For Wag9/Wap7 Locomotives, I Input Dc 31-144V, Output Dc 24V, 0-3 4A, Ii Input- Dc 58-144V Output- Dc 48V, 0-3 4 A. :- I Abb Identification No.3Ehp590001r0090 Ii Abb Identification No.3Ehp590001r0100, Drg. No./ Spec.- Clw Spec No.-Clw/Es/3/0054 Alt-B Or Latest.