supply of relay, plug in type, style ql1 , dc magnetically latched neutral line, 24 v dc 11f,4b contacts, front and back contacts metal to carbon, , supply of relay, plug in type, style ql1 , dc magnetically latched neutral line, 24 v dc 11f,4 b contacts, front and back contacts metal to carbon, with plug board, retaining clip and connectors confor ming to brs:935a, irs: s 34 & irs:s 23 ( as applicable ). the interlocking code for this unit shall be abdeg . u-vam ref. item id : item id:3100385, relays (metal to carbon) sub item id:3100385016, relays -mi niature, plug-in type, m to c, dc neutral line magnetically latched relay, style ql1, 24 v dc, 11f-4b cont act, code abdeg [ warranty period: 30 months after the date of delivery ] ]