Tenders for Supply of Relay, Plug In Type, Style Ql1 Magnetically Latched Neutral Line 24 V Dc, 11F/4B Contacts, Front & Back Contacts Metal To Carbon. Complete With Plug Board, Retaining Clip & Connectors Confirming To Brs -935A, Irs -S-34, Irs -S-23 Amdt. Up To Date If Any Uo To The Date Of Opening, Interlocking Code For This Unit Shall Be Abdeg. Warranty Period: 30 Months After The Date Of Delivery