RolloTec isolating relay REG home electronics. RolloTec® isolating relay REG, for mounting on 35 mm top hat rails in distribution boxes or control cabinets, enables operation of 2 conventional motor drives via one control point, installation between control point and motors, with separate mains supply, with central input e.g. for RolloTec® timer, without extension outputs for individual operation, with screw terminals, neutral conductor required.