Adapts M-6200A Digital Voltage Regulator Control to directly replace specific Siemens MJ-1A, MJ-2A, MJ-3, MJ-3A, MJ-X;IJ-2, IJ-2A; SJ-4, SJ-5, SJ-6; UJ-2, UJ-4, UJ-5, UJ-5C regulator controls. The hardware kits provide the means to install the M-6200A in the existing cabinets. The hardware kits are available factory installed or separately for field installation.