Supply Of Q-Series Neutral Line Relay(Qn1 Type), 8F/8B, 24V Dc Complete With Plug Board (B Ase Plate), Connectors And Retaining Clips Etc And Conforming To Brs-930 And Rdso Spec No. Irs Spec-34 & S-23 With Amdt. Upto Date As Applicable Or Latest. The Interlocking Code For This Unit Shall Be "Abcdf", Insp Ection Authority By Rdso [ Warranty Period: 30 Months After The Date Of Delivery ] ]