Supply Of Relay Ql1 Plug In Type, Style Magnetically Latched, Neutral Line, 24v Dc, 11f- 4b Contacts, Front & Back Contacts M To C, Complete With Plug Board, Retaining Clip And Connectors Conforming To Brs:935a And Rdso Specn. No. Irs:s-34 & Irs:s-23, Amdt. Up To Date If Any Up To The Date Of Opening. The Interlocking Code : Abdeg, Make/brand-wsf Or Cg Power Or Digital Control Or Electrostar Or Similar.