How to wire a switch with only L1, L2 and L

This type of switch is wired so that there is only a single fire wire coming in from the L connector, and then the fire wire coming out of the L1 connector to fulfill the function of the switch.

The L symbol indicates the fire wire, the N symbol indicates the zero wire, and G indicates the ground wire. The red wire is used for the fire wire, the blue wire for the zero wire, and the two-color wire for the ground wire.

The L symbol indicates the fire wire inlet, the L1 is the fire wire outlet, and the L2 is the dual control outlet.

Extended Information

The word switch is explained as on and off. It also refers to an electronic component that opens a circuit, interrupts current flow, or allows it to flow to another circuit. The most common type of switch is a human-operated electromechanical device that has one or more electronic contacts. A "closed" contact means that the electronic contact is energized, allowing current to flow; an "open" switch means that the electronic contact is not energized, creating an open circuit that does not allow current to flow.

According to the use of classification: fluctuation switch, wave switch, record and playback switch, power switch, pre-selector switch, limit switch, control switch, changeover switch, isolation switch, travel switch, wall switch, intelligent fire switch and so on.

According to the structure classification: micro switch, boat switch, knob switch, toggle switch, push button switch, key switch, and fashionable trend of membrane switch, point switch.

Categorized by contact type: switches can be divided into three types of contact type: a-contact, b-contact and c-contact. The contact type refers to the relationship between the operation condition and the contact state that "the contact closes when the switch is operated (pressed)". It is necessary to select a switch with the appropriate contact type for the application.

Categorized according to the number of switches: single-control switches, double-control switches, multi-control switches, dimmer switches, speed switches, splash boxes, doorbell switches, sensing switches, touch switches, remote control switches, intelligent switches, plug-in card switches, special switches for bath tubs.

Reference:

Baidu Encyclopedia-Switch