Power saving system which assures room security

A power saving system for conserving energy consumption by electric loads in a room having a door with a locking system, and which system also assures room security, comprising:

• closure switch means for coupling to the door and producing a control signal only throughout the time the door is opened;
• lock switch means for coupling to the door locking system and producing a control signal only throughout the time of proper locking of the door, both said control signals being the same;
• control means associated with an electric load in the room, and
• wire means coupling said closure switch means and said lock switch means in parallel to said control means,
• said control means comprising timing means responsive to the termination of a control signal on said wire means for producing a control signal for a preset limited interval of time, and for ceasing operations upon the presence of a control signal on said wire means, and control switch means responsive to any of the aforesaid control signals for controlling the energization of the electric load during the time that a control signal is present.