A two way light switch is a simple single pole changeover switch with three terminals. Here 1 terminal is the input and the other two are used as outputs.
Cubus Adsl Dk Multi Way Switching Two Way Switching
What is a 2 way switch. These are typically labelled com l1 and l2 some may label the l1 and l2 positions as 1 way and 2 way. The three terminals are usually named com l1 and l2 but sometimes com 1 way and 2 way are also used. In one switch position the com terminal is connected to l1. A two way light switch is a switch that can be used in conjunction with another two way light switch to turn a light or lights on and off from more than one location. It is a standard single pole switch with three terminals. The single switch controls a single light or lighting circuit.
In the other switch position it changes over so that com is connected to l2. Its okay if this is too complex for you. Two way switch can be operated from any of the switch independently means whatever be the position of other switch onoff you can control the light with other switch. The 2 way switch or single pole double throw switch is a three terminal switch. A 2 way switch means there is another switch controlling the same light. These are often used on a stair case large room with switches by each door.
Before proceeding an important component called a two way light switch is the main element of the 2 way switching irrespective of the type of wiring used. A 2 way switching connection means you can control an electrical equipment like bulb by two switches placed at different places generally used in the staircase.
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