Relay Point Contactor Relay Ac Immunize, Plug-In Type, Style Qbca1, Dc Biased Contacto R, 24V Dc With 2Hf-4B, Contacts Heavy Duty Metal To Carbon Front Contacts And Back Contacts Metal To Carbon Complete With Plug Board, Retaining Clip & Connectors Confirming To Brs:943, Irs:S-34 & Irs:S- 23. The Interlocking Code For This Unit Shall Be Bcejk. [ Warranty Period: 30 Months After The Date Of Delivery ] ]