Supply Of Three Pole Power Contactor Complete, 1kv, Control Voltage Ac 440v (+10% / -20%), 50hz, Current 630 Amp, With Auxiliary Contacts 4 No + 4 Nc, And Conforming To Rcf Specification No. Edts-103, Rev-d With Amendment No. 7. Accepted Make And Model No.: As Per Sr. No. 21 Of The Bill Of Material (annexure-b) Of Rcf Specification No. Edts-103, Rev-d With Amendment No. 7, Or Any Other Rcf/rdso Approved Make.