Preventive Maintenance Kit for RADSS*220VDC Bus Coupler CT Disconnector Includes 1 pc RXMVB 4 RK251403-AS Throw-over relay 1 pc RXMVB 4 RK251401-AS Throw-over relay 1 pc RXMM 1 RK214002-AS Auxiliary relay 1 pc RXKL 1 1MRK000066-AB Time relay Note! Installation of the RADSS Kit can only be performed by ABB Substation Sweden appointed personnel.