How to distinguish the three lines of DR handswitchThe handbrake is divided into a first-gear handswitch and a second-gear handbrake. Usually the first-gear handswitch has two cores, which usually means that there are two wires, while the second-gear handswitch is divided into three-core and four-core. That is to say, there are three wires and four wires. Let’s talk about the three-core hand switch in detail!The two-gear three-core handswitch has three wires, which are green, red and white. Green can control the first-gear switch, green is the so-called common terminal, and white controls the second-gear switch. The shell material is ABS engineering plastic, the mechanical life is 200,000 times, and the electrical life is 400,000 times.And we can customize the length: the spring wire can be equipped with 3 meters, 6 meters, 10 meters and other spring wires, and the length of the spring wire can also be customized according to customer needs. If you also have the needs of DR exposure hand switch, welcome to inquire.