This is harmless for you, but it can zap the integrated circuits at the other end of the wire if they are not protected. However, if you carry an electrostatic charge, and you touch the wire, you will cause an electrostatic discharge (ESD). So please! Be careful because it’s all about electricity and electricity is too dangerous.The wires are safe to touch as they are powered from a 3.3V chip on the motherboard, and current is limited by a resistor. The author will not be liable for any losses, injuries, or damages from the display or use of this information or if you try any circuit in the wrong format.Contact the authorized and licensed electrician for switch installation if you are not sure about the wiring diagrams.Switch off the main circuit breaker to make sure the power supply is OFF before wiring an existing or new outlet or switch with an electrical/junction box.Use the suitable voltage and ampere rating of switch with appropriate wire size and proper size MCB according to the load rating.Also, Neutral is never connected to the switches. Neutral Wire is not required in 240V outlets wiring (US). If there are no color coded screws on outlets, refer to the user manual or contact a licensed electrician.The green screw should be connected to the ground / earth wire (Green/Yellow or naked wire).The brass screws should be connected to the Hot (line, live or phase) wire using the IEC & NEC Wire color codes.It is recommended to check the device rating or at least check using a multimeter in continuity test mode to verify the terminals. In addition, when the position of the 4-way switch is changed, it reverses both wires to opposite terminals and when the position of the double pole switch is changed, it turns both wires On or OFF. Keep in mind that double poles switches are rated for 220V to 240V while 4-Way switches are always rated for 120V to 277V. Double Pole & 4-Way Switches look similar but they are different.The L1 and L2 terminals are connected (not always the case) to the incoming lines (say Hot 1 and Hot 2 in case of 240V – NEC or Phase and Neutral in case of 120V or 230V – IEC) and A1, A1, B1 and B2 are connected to the load points according to the design.ĭouble Pole, Double Throw (DPDT) switch is used to control two separate appliances connected to the supply for example, a water heater can be toggled between 120V and 240V supply using DPDT switch (wiring diagram is given below), where both supply lines (Hot1 and Hot2 or Line and Neutral) must be switched ON or OFF at the same time for single operation as the action is interchangeable due to the DPDT switch. In short, DPDT (Double Pole, Double Throw) switch is used to control two separate circuit connected to two inputs supply.ĭouble Pole, Double Throw switch has 6 terminals as L1, L2, A1, A2, B1 and B2. It is basically two SPDT switches packed in a single unit and operated by a single lever (common for both single pole, double throw switches). What is Double Pole, Double Throw (DPDT) Switch?ĭPDT stands for Double Pole, Double Throw switch. Toggle Water Heater between 120V & 240V using DPDT Center-OFF Switch.How to Toggle Water Heater between 120V & 240V using DPDT Switch?.Controlling the Direction of Motor Rotation using DPDT Switch.Controlling & Wiring Two Light Bulbs using DPDT Switch.What is Double Pole, Double Throw (DPDT) Switch?.
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