For storage heaters with thermomechanical AC charging controller and duo-electronic storage heaters. 'Apartment station' for controlling individual heating groups in conjunction with an AC central control unit, reference variable control signal AC 230 V/% ED EDS converter function (ED control system of the input and output signal can be coded 80%, 72/68% or 40/37% EDS), adjuster for raising or lowering the charge, characteristic curve switching for lowering operation external charging level in lowering operation (0 - 100%) max. output control power (A1/A2) 300 W, top hat rail mounting - 3 division units, protection class IP 20 with appropriate mounting, alternating voltage 230 V~, 80%, 72/68% or 40/37% EDS.
