Electrovalve Assly. For Ctf/Reverser/Ep Contactor Type Nc-4, To Latest Clw Dr G.No.4-Twd-111-118 Alt-14 (Sheet No.0) & Speen No. 4-Tes.111.018,Alt-3. Specn: Elc/74A [ Warranty Period: 30 Months After The Date Of Delivery ] ]