Cross-switch: wiring diagram, particular installation. Switches Legrand

In the narrow long corridors and staircases in one place to switch on the light is inconvenient because you have half way to go in the dark. A simple solution is the inclusion of two seats connected by switches (PV). When this is not enough, use cross switch wiring diagram which is presented below.

In contrast to passing, it has four pins, not three. With it closes one of the two lines.

Principle of operation

Cross-device can only work when switching the power polarity, for example, when you need to reverse the motor. Here the principle of operation is simple: when a voltage is applied to the input switching key output will be switched in the "plus" and "minus".

In fact, the device is a line switch alternately turns off and one turns on another. It is always installed between the PV. The device comprises a pair of input and output contacts. In one position the keys of the first wires of the input and output are shorted together. Accordingly, also closed the second. When switching keys, the first inlet wire is shorted to the second output and the second input - with first output. It is only important to properly connect the contacts, otherwise the system will not work correctly.

Cross switch wiring diagram

Setting the switch is made, along with two communicating, as in a home network it is not applied one. The bulk of the calls made through the switch box.

Cross-pass switch is a connecting part between the continuous switches: includes 2 cores with one and the same goes for the second.

On the reverse side of the cross device on each pair of terminals the arrows indicate the input and output.

Features cross-switch

How the device works:

• Connection is via a four-wire cable;
• If you are using multiple switches, they are connected in a single chain between them, where the previous outputs are connected to the inputs of the subsequent;
• When creating complex contact groups used the cable with a large number of wires;
• Electricians prefer to use a few simple circuits instead of one complex.

Selecting a cross-switch

The customer may have problems with the choice of passing and cross-switches. They look like a device of conventional type, and may be easily confused between them. The main difference is number of pins: ordinary switch them two, pass three, and at cross - four. If you select a series model, in each case, the number of terminals is doubled.

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For open wiring is purchased an invoice model, and hidden - with recessed box. Enclosures are selected for circuit breakers from the store. The entrance and cross device are chosen identical in appearance and type: swivel, keyboard, lever or touch. Power contacts, they should not be lower than the load.

Regarding the choice of the manufacturer, well-proven circuit breakers Legrand, although many may not be comfortable with high prices.

Devices are the optimal solution for control of lighting from multiple locations.

Instructions for connecting the cross switch

The Work is done in several stages:

1. Development of electric circuit diagrams.
2. Strip stroebe.
3. Mounting in wall junction boxes. Its size must provide no less than 7 connections, and the passage of the other wires.
4. Disconnect the power supply to the installation location of the machine in the electric control Board.
5. Cabling from the junction box to the control panel switches and lamps.
6. Connection of neutral conductor to the contacts of the lamps.
7. Connect the phase cores to the contact of the first pass switch, and further in accordance with the scheme. The wire between the switches should be connected strictly in pairs.
8. Connection to the latter supply air to the lamps through the switch box.

If the connection were made without markings, it is possible to find a pair of wires PV. To do this, first connect to the network extreme PV, and then, switching of each key, flat screwdriver are phase two of the four wires that go to the exit. The other two wires should be connected to its other pair of terminals.

Double switch

Double cross switch, as well as the entrance contain two independent contact group. They are designed to control lighting in two separate lines, not connected.

In fact, cross-series switch is a pair of devices, combined in a common housing. The connection of each line is similar to the previously described instructions. It is advisable first to do the wiring to one lamp, then another. In this circuit connections must not be connected. Control system the two light sources becomes complicated when the double cross switch. Wiring diagram is not particularly complex, but contacts are many, and they can create confusion. While some electricians will mount it, then the subsequent repair of others are unlikely to understand with this scheme.

The Number of connections in the junction box is greatly increased, and there is a problem - all to hide inside it. In addition, the marking of the cable also becomes more complicated. Online you can find series switches Legrand. The model is quite rare and not always available. Electricians usually try to split this design into two simple.

Conclusion

When it is necessary to increase the number of seats lighting control more than two, use cross-switch. The connection diagram should contain the communicating devices, with the exception of cases when it is necessary to change the polarity of the power supply. The switching system of lighting with multiple locations is not difficult. It is important to make the correct labelling of wiring and not to get lost in the connections.