Rocker Switch (Double-Pole) YSR-7(8)

The biggest difference between a bipolar switch and a double control switch is the control circuit. A double control switch is a switch with two normally open and normally closed contacts at the same time (that is, a pair). Usually two double control switches are used to control a lamp or other electrical appliances, while a bipolar switch controls two branches, which can be used simultaneously Cut off the live and neutral wires, which is safer in use. Double-connected and bi-polar have two different meanings. The double-connected switch has three contacts, such as 1, 2, and 3. If 1 is the common point, then there are two states: 1 -2-way, 1-3-off or 1-21-3-way. The triple switch has four contacts, such as 1, 2, 3, 4. If 1 is the common point, then there are three states: 1-2, other off, 1 -3 off, other off, 1-4 on, other off. Multi-pole analogy. Like selector switch. Ordinary lighting switch does not have triple switch. Bipolar switch is two sets of contacts, with four contacts, suc…