In general, the key switch is a lock that adds technology to realize the function of the switch. It is to bring safety during the work process and realize the combination of the key and the switch to control the power supply. Key switch brings it to various special industries (elevator, security, electromechanical equipment, medical equipment). It is also called power lock because the key switch needs to be connected to the power supply.
Classification of key switches:
According to the level of current and voltage used, it can be divided into low-voltage key switches (such as 4A, 2A and below), etc, and high-voltage key switches (10A, 16A, and above). Low-voltage key switches generally do not need any safety regulations because they are low current, and only need to comply with environmental protection. BITUO’s key switches all comply with ROHS. High-voltage key switches need safety certification, such as CCC, CE, etc.
According to the size of the opening: big key switch, small key switch. The main opening dimensions of small key switches are 6mm, 8mm, 12mm, 16mm, 19mm, etc. The main opening dimensions of large key switches are 22mm, 25mm, 28mm, 30mm, 36mm, etc.
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