Wiring Two Way Switches
This visual showcases a practical two-way switch layout using red, yellow, and blue color-coded wires between two switches.
The top image shows a circuit cable feeding live and neutral wires into the first switch.
The live red wire is connected to the COM terminal, while yellow and blue connect to the traveler terminals (L1 and L2). These travelers link to the corresponding terminals in the second switch via a linking cable.
This enables either switch to complete or interrupt the circuit, toggling the light.
Earth wires are also shown properly connected to the metal back box for grounding.
This layout follows British wiring standards often found in older residential systems.
The setup enables flexibility and redundancy in lighting control, which is essential in areas like stairwells or long corridors.
Proper color coding simplifies diagnostics during maintenance or upgrades.
This diagram also highlights the use of looped earthing and back box grounding, enhancing safety.
The visual clarity makes it an excellent reference for understanding two-way switching fundamentals.
Electricians can use it to retrofit existing single-pole switches into a two-way setup.
The method avoids using neutrals in switch terminals. Each conductor is assigned a dedicated task, ensuring operational efficiency and safety compliance.
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