Relay, Plug In Type, Style "Ac-Led" All Aspects, Ac Lamp Proving Relay Unit Wit H In- Built Current Transformer Type, Slow Release Neutral Line Relay, 4F, 4B, Contacts, Front And Back Contacts, Metal To Carbon Shall Be Suitable For Working In Series With The 110 Volt Ac, Led Signal Lamp Rated At 15 Watt Conforming To Rdso Spec. No. Sts/E/Rel Ays/Ac Lit Led Signal/09-2002, Amdt.1 Brs: 941A, Irs: S-34 And Irs: S-23 (As Applicable). The In Terlocking Code For This Unit Shall Be Abdhk. [ Warranty Period: 30 Months After The Date Of Delivery ] ]