Printed Circuit Board (Pcb) For 110V, 450 Mm Sweep (Bldc) Universal Brushless Ac/Dc Railw Ay Carriage Fan Confirming To Rdso Specification No. Rdso/Pe/Spec/Tl/0021/2005 (Rev-3) With Amnt No. 1 . The Pcb Shall Confirming To Clause 4.4 To 4.4.8 Of The Rdso Specification. Note Item To Be Procured From Rdso Approved Source Only. [ Warranty Period: 30 Months After The Date Of Delivery ] ]