RoHS. KPC Series Protection Cover for Solid State Relays. The protection cover is for single phase KSI and KSJ ranges of Solid State Relays. This protection cover has a UL94-Vo flammability rating and is RoHS compliant. Single phase solid state selays KSI and KSJ series Weight of 9.3g Accordance with UL94-Vo flammability rating RoHS compliant. Kudom Protection Cover Solid State Relay Accessory