Supply of Relay Fail Safe Electronic Time Delay Device Mounted On Q Series Relay Base And Cover With Fixed In Ning Of 60 Second Confirming To Irs:S:61/2000 Ver.1.0 Amd, 3 Or Latest, Irs:S:34 And Irs:5:23 As Applicable . Relay Operating Voltage 24V Dc +20% Or -10%. The Interlocking Code For This Unit Shall Be Afhky. Warranty Period: 30 Months After The Date Of Delivery