The key switch is an easy-to-use combination switch. The key switch is also called an interlock switch. The key switch can be interlocked between them: for example, they can choose the spacing: 10MM, 15MM, 12.5MM, 20MM mounting holes can choose light. Control, no holes, screw holes. There are usually one group of four, six, eight, twelve and sixteen. But there is also only one single key switch.

1 It is to turn on or off one or several sets of electrical contacts by means of a button, instead of using the left and right or front and rear toggle levers;

2 It is usually a linkage structure that appears in groups, rather than just a single switch like a normal switch;

3 The linkages on each of its switches are more than one set of "multi-knife" switches instead of only one or two contacts;

When any one of the 4 sets of switches is pressed, all the original switches will be reset to the original state (except for self-locking and lock-free structures);

5 There are three kinds of structure of interlocking, self-locking and no lock for users to choose, very practical and convenient.