

Work with electricity only in presence of those persons who have good knowledge and practical work and experience who know how to deal with electricity.Never try to work on electricity without proper guidance and care.Disconnect the power source before servicing, repairing or installing electrical equipment.Please read all caution and instructions while doing this tutorial in practical. Electricity is Our Enemy, if you give it a chance to kill you, Remember, they will never miss it.If all the switches are at OFF position, The light bulb will not glow. It clearly shows that the light bulb is ON when any one of the switches is at ON position. The following gif shows the all positions of switches connected in parallel to a light bulb. No matter if all of the other connected switches are at OFF or ON positions. On the other hand, if one of the switches is at ON position, the current will flow in the circuit as the circuit behaves like a completed circuit, hence the bulb will glow. In simple words, there are four switching positions and if both the switches are at OFF position, the light bulb will not glow.

To get the switching position in ON condition for the light bulb, the above operation is the same as the Digital Logic OR Gate truth table which is given below. How to Wire Single Pole, Double Throw (SPDT) as 3-Way & 2-Way Switch? IEC & NECīelow are the different positions of single way switches and light points when connected in parallel.Ĭlick image to enlarge Switches in Parallel Different Positions of Switches & Light Bulb.How to Wire Single Pole, Single Throw (SPST) as 2-Way & 1-Way Switch? IEC & NEC.How to Wire 4-Way Switch (NEC) & Intermediate Switch as 3-Way (IEC)?.This is the same case for other loads as well to control by two (or more) single way switches connected in parallel. In other words, If one of the switches are close or at ON position, the light bulb will glow then. The circuit will complete if one of the switches out of two are at ON position.
