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Stair switch from the Simon 10 series, from the manufacturer Contact Simon. The product part number is CW6/2.01/11.
Simon 10 is an economical modular series for investments where different colors are not required. A full cross-section of the range of switches and sockets will allow you to comprehensively equip each apartment or office. The distinguishing element of this series is a non-conductive bridge made of high-quality plastic ensuring durability and flexibility as well as safety during assembly work.