Supply Of 24V Dc Relay Fail Safe Electronic Time Delay Device For Railway Signalling Wi Th Fixed Timing 0-60 Seconds And Conforming To Specification No. Irs:S-61/2000 With Amd.3 Or Latest Mounted On Q-Series Relay Base & Covered Complete With Connectors, Retaining Clip Etc. The Interlocki Ng Code For This Unit Shall Be Afhky Warranty Period: 30 Months After The Date Of Delivery