Energy-saving device for storage water heater

摘要: Autonomous energy-saving device for storage water heater The autonomous (2) allowing control of a (1) connected to an electrical grid including phase P, neutral N and protective conductor T operating supply power continuously or according tariff periods by means contactor programmer, said includes inputs E1, E2, E3 outputs S1, S2, S3 between the E1 E2 S1 S2 at least one primary circuit board (7) comprising electronic component (3, 4) algorithm stopping decreasing durations heating without modifying technical characteristics heater, adapting operation thereof needs user.