Communicating circuit breakers work in pairs. Designed for use in long corridors and areas with a large area. It allows inclusion in one place, and off in the other, more distant. The normal position of the keys are different, which means that one switch button is pressed in the upper position, and the second at the bottom. High-quality assembly of all components ensures long service life. It has reliable fixation elements, clamps, screws. Technical characteristics of the dielectric pads are not reduced at high temperatures by heating. Plastic does not yellow after prolonged use and resistant to mechanical stress. In the production process does not use toxic and harmful substance for the human organism. Very easy to install, but the installation is desired a specialist able to read electrical wiring diagram, performing the work must comply with safety rules.