How to connect a passage switch

How to connect a passage switch Table of contents:

  • 1 Purpose of the passage switch
  • 2 Installation of the passage switch
  • 3 Device controlling two groups of luminaires
  • 4 videos
  • 5 Schemes

Everyone faced a situation where to turn on the lighting you must cross the dark room. It’s a lot of inconvenience, help in this situation will be installing a walk-through a switch that allows you to control the lighting from different places. IN In this article, we will tell you how to connect a pass-through switch, demonstrate the connection diagram, and also show photos and videos instructions.

Purpose of the passage switch

Purpose of the passage switch

Feed-through switches are used to turn on and off lighting fixtures from across the room, corridor, or flights of stairs. The scheme of their work allows you not to return to the first device and turn off the lights from a convenient location.

In their execution, they are:

  • single-key;
  • two-key;
  • three keys.

The design of the device determines the number of connected to it lighting fixtures and trip points. In addition to management keys there is a touch model.

The device through passage two-gang switchTwo-gang walk-through device circuit breaker

Any switch serves to break the phase wire and de-energizing electrical appliances, but the specificity of the passage switch lies in the fact that opening one circuit, he closes the contacts pair switch.

Unlike a conventional two-wire device, a feed-through switch requires three-wire switching. At its core it is a switch directing voltage from one contact to another. Lighting turns on when the keys on both devices are in the same position and turns off when the situation is changing. Management can be carried out not only from two, but also from three or more places, for this, it is connected to the circuit cross switch, and if necessary, several. The single-key switch is equipped with three terminals. Two-key the device has 5 terminals: two for connecting to switches and one common. The three-key switch has a more complex device, but having a scheme, figuring out this will not be difficult.

Installation of the passage switch

Control circuit breakersScheme control switches

The connection scheme is slightly different from the usual circuit breakers, but having three wires instead of two makes to think. Consider the purpose of each of them. Two wires used as jumpers between spaced around the room switches, and the third serves to supply the phase. Before as start connecting a through switch, buy a switching the box in which the wire will connect.

Stripping insulationStripping insulation

The ends of the wires are exempted from insulation by 2-3 cm – this is necessary for twisting. If the wires are interconnected pads, the wire is stripped no more than 1 cm. distribution box, power supply from the switchboard, twisted with the input contact of the first switch. Two the remaining output contacts are connected to the same wires from second device. Input contact of the second switch twisted with a wire from the lamp. Zero wire from the lighting the device is connected to zero, which came from the shield. All places of twists are closed by an insulating tape. Cross section for marching circuit breakers is selected according to the power of controlled lighting.

A device that controls two groups of fixtures

Connection scheme of two-gang switch through passageTwo-gang walk-through wiring diagram circuit breakers

It is advisable to install a two-gang switch through passage in a large room where you need to manage several lighting devices. Its design is two single circuit breakers in a common housing. Installation of one device for control of two groups allows you to save on laying the cable to to each of the single-key switches.

Installation of double pass-through switchMounting double pass switch

Such a device is used to turn on the light in the bathroom and toilet or in the hallway and on the landing, it is able to turn on light bulbs in a chandelier in several groups. For mounting a walk-through a switch designed for two bulbs will need more number of wires. Each leads six veins, as in unlike a simple two-gang switch, the passage does not have common terminal. Essentially, these are two independent switches in one case. Two-key switch circuitry is performed in the following sequence:

  1. The wall is installed podrozetniki for devices. Hole for them is cut with a puncher with a crown. To them through the gates in two wires with three conductors (or from a distribution box one six-core).
  2. A three-core cable is connected to each lighting device: neutral wire, grounding and phase.
  3. In the junction box, the phase wire is connected to two contacts of the first switch. Two devices are connected between four jumpers. To the second switch join contacts from fixtures. Second wire lighting commutes with zero coming from the switchboard. At switching contacts common circuit breakers are closed in pairs and open, ensuring that the corresponding lamp.

Connection of the cross switchConnection cross circuit breaker

Double key switches are also used when necessary. control lighting from three or four places. Between them a double cross-type switch is installed. His connection is provided by 8 wires, 4 for each terminal circuit breaker. For mounting complex connections with many wires it is recommended to use junction boxes and carry labeling of all cables. Standard box Ø 60 mm will not fit a large number of wires, you will need to increase the size of the product or put several paired or purchase distribution box Ø 100 mm.

Wires in the junction boxWires in junction box

It is important to remember that all work with wiring and installation appliances performed when the voltage is off.

We also recommend reading the article “How to repair a switch Sveta”.


This video talks about the device, the principle of connection and installation of passage switches:

This video shows an experiment in which various methods of connecting wires:


Wiring diagramWiring diagram connecting

Connection diagramWiring diagram

The principle of connecting walk-through switchesPrinciple connection of passage switches

Visual schemeGraphic diagram

Connection scheme for a two-gang switch with connection via a distribution boxWiring diagram for a two-gang switch with connection via a distribution box

Like this post? Please share to your friends:
Leave a Reply

;-) :| :x :twisted: :smile: :shock: :sad: :roll: :razz: :oops: :o :mrgreen: :lol: :idea: :grin: :evil: :cry: :cool: :arrow: :???: :?: :!: