Universal lighting control scheme with several switches. Scheme, description

ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Universal lighting control scheme with several switches. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Electric installation work

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A universal option for controlling lighting from several places, allows you to abandon different types of switches, and come to one standard version of lighting control using an intermediate switch

Universal lighting control scheme with several switches
Rice. 1. Lighting control scheme with several switches

Universal lighting control scheme with several switches
Rice. 2. Appearance of the switch

Universal wiring diagram for lighting control from three or more sides, consists of one type of switches

Instead of two-pole bidirectional switches SA1, SA3, we will install an intermediate switch and use one contact on one side of the connection as a common one, and on the other side, two contacts that, when switched, switch the power supply from one controlled line to another.

An intermediate switch SA2 is installed between them; when switching, it changes the connection scheme of the controlled lines, without an electrical break.

Due to the switches SA1, SA3 breaking the power supply of the lamp. directed at each other and in one of the positions they close the control line, the intermediate switch, changing the connection scheme of the controlled lines (phasing, polarity) in one of the positions, turns on and off the EL1 lamp.

This scheme allows operating and repair organizations to reduce the number of purchased wiring devices.

Publication: electro.narod.ru

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