Relay Gr-57/A Lighting/Air Conditioning2Χ20Α

This device is mostly used in hotels and rented rooms. Its main purpose is to control the mains power supply that is used to operate the room lighting and the air-conditioner . The device co-operates with the GR-43 and a magnetic contact BS-429 on the door of the porch. When the door of the porch opens and remains opened for more than 60 seconds, the output of the air conditioner is deactivated.If the door closes, the air conditioner is activated immediately. When the room resident exits the room and removes the magnetic key from the GR-43 socket, the power supply of the room remains active for 60 seconds and then closes. If the key is entered in the socket, the power supply to the room lighting and the air conditioning is activated immediately.