Translation guide
A switch that controls a light or circuit from two different locations, commonly used in stairways or hallways.
The physical device or wiring configuration that allows a light to be turned on/off from two separate switches.
Standard term for a two-way switch in residential wiring. Literally 'three-way switch', but corresponds to the English 'two-way switch'.
階段の上と下に三路スイッチを付けました。
I installed two-way switches at the top and bottom of the stairs.
Variant using numeral '3'. Common in catalogs and technical documents.
The method of connecting switches to achieve two-way control.
Refers to the wiring scheme for two-way switching.
三路配線の仕組みを説明してください。
Please explain how two-way switching wiring works.
Do not translate 'two-way switch' literally as 二方向スイッチ or 双方向スイッチ. These are not standard terms and may cause confusion.
In Japanese, a 'three-way switch' (三路スイッチ) corresponds to the English 'two-way switch'. This is because Japanese counts the number of terminals, while English counts the number of control points.
This light requires a two-way switch.
Technical term for a double-throw switch, used in electronics rather than household wiring.
双投スイッチを使って回路を切り替えます。
Use a double-throw switch to change the circuit.