Tenders for Supply of Supply & Transportation Of Relay Ac Immune Plug In Type Style Qta2, Dc, Neutral Track 9 Ohms 2F/1B Contact, Front And Back Contacts Metal To Carbon Complete With Plug Board, Retaining Clip And Connectors Conforming To No Brs:S-939A, Brs-966 Appendix-F2, Irs-S;-23, S-34 & Irs-S-60 As Applicable Or Latest. The Interlocking Code For This Unit Shall Be Fghkx, Type-Uta2.