Pass-through switches are installed in junction boxes. Many models are made with a two-button switch. If necessary, you can install several devices on the same network. If we consider a circuit with two lamps, then the connection is made through the transceiver. The type of cable, box and switch is taken into account. To understand this issue in detail, it is recommended to familiarize yourself with the connection diagrams.
Single box diagram
The connection diagram of the pass switch from 2 places (the photo is shown below) involves the use of an expander. If we consider contact switches, then they can be installed with wire adapters. In this case, the trigger is applied with a winding. The first contact of the switch goes to the zero phase. The resistance on the plate should be 55 ohms. The second switch is connected directly through the expander. It should also be noted that it is important to clean the block first. The second contact is connected to the block winding.
Two-box pattern
Connection diagramthe switch from 2 places to two lamps has a controller. The first switch is mounted on the zero phase. In this case, the contacts of the second order are closed on the plate. The second switch is installed through the expander. It should also be noted that the resistance on the controller must be at least 30 ohms. Sometimes the insulator can give breakdowns. In such cases, electricians install an additional lining.
If we consider three-button walk-through switches, the 2-way wiring diagram has a double controller. In total, one expander is required. The upper contacts are pumped up in the first phase, and the resistance on the plate is 35 ohms. If we consider a standard two-button type switch, then it should be compatible with the expander.
Application of two-core cable
Through a two-core cable, you can install various switches through. The connection scheme for two lamps involves the use of a dipole transceiver. The junction box itself must be thoroughly cleaned. The switch is allowed to be installed on the adapter. It is mainly used with lining. The insulator in this case is installed last. It should also be noted that the triode will need a linear type. If we consider one-button walk-through switches, the 2-way connection consists of a contactor and a filter. The top contacts are clamped onto the plate. The bottom wires must go to the first phase.
Connection via three-wire cable
Using a three-core cable, you can easily install walk-through switches. The connection scheme from 2 places to two lamps has two expanders. The first switch is installed near the connection block. The upper contacts of the device go to the zero phase. On the contactor, it is important to immediately check the resistance. This parameter averages 5 ohms. If we consider strip boxes, then the contactor can be used with an analog filter. The lower contacts of the device close in the second phase.
The insulation must be under the box. It should also be noted that there may be problems with turning on the lamp. In such a situation, it is recommended to check the insulation of the wire from the switch. The resistance on the controller plate averages 30 ohms. If we consider two-button walk-through switches, the connection diagram of 2 places has contacts that close from the bottom row. The output wire from the plate goes through the zero phase. In this case, the resistance on the block is on average 45 ohms. If we consider the switches for three buttons, then they are allowed to be mounted on expanders. In this case, controllers are used with different conductivity. Experts advise you to immediately check the resistance level before connecting.
Using a four-wire cable
Scheme for connecting a pass-through switch from 2 places through a four-wire cable has two expanders and one contactor. If we consider a simple model, then the expander is installed with insulation. It should also be notedthat the switch is mounted on a pad. The upper contacts of the device are immediately connected to the zero phase. The plate must first be checked with a tester. In some cases, the closure fails.
Resistance in this case is 45 ohms. The switch contactor may be used with winding. Adapters for blocks are used only low-resistance type. Sometimes contactors are used with filters. If necessary, the wire from the expander can be isolated. The triode in the block must be located at the bottom. The second switch must be connected through the controller. If there are problems with breaking through the current, then a lining is installed.
Connection with remote unit
Connection diagram for a 2-way switch with a remote unit has one wired type controller. If we consider switches with two buttons, then the connecting contacts go to the first phase. The plate must first be checked with a tester. In some cases, the block needs to be isolated. The second switch must be connected via an expander. It should also be noted that the contactor must be cleaned. The resistance on it averages 45 ohms. If you use an adjustable expander, then the contacts from the controller are closed in zero phase. The triode must be under insulation.
Additionally, you need to consider a circuit with switches for three buttons. An expander for these purposes is suitable for a low-resistance type. The first switch is connected viacontroller. The top contacts of the elements go to the second phase. Another switch may only be connected through the cover. In this case, the connecting block must be immediately checked by a tester. The top contacts of the second switch are closed in zero phase.
Discrete switch application
Connection diagram of 2 places (discrete type through switches) involves the use of one expander. Experts recommend using controllers only on plates. It is also important to note that blockers of different conductivity are suitable for connection. When considering two-button switches, it is important to note that the connecting contacts always go to the first phase. In some cases, the expander may fail. This is due to the increase in polarity in the circuit. Filters are used to solve this problem.
Review of connection blocks with dinistor
The connection diagram of 2 places (through switches) with dinistors has normally open contacts and a controller. If we talk about switches for two buttons, then the expander is used with a lining, and the resistance on the plate must be at least 55 ohms. In some cases two contactors are used. All this is necessary in order not to waste time on isolation. The controller must be installed behind the adapter.
In some cases, the expander is used with one outlet. Top contacts of the firstswitches are connected in the first phase. It should also be noted that the switch must be located near the junction box. However, it is attached only through an expander. If we talk about simple one-button walk-through switches, a 2-place connection circuit has contacts that close in the second phase, and the resistance is no more than 45 ohms. Triggers are not used in this case. If we talk about circuits for two expanders, then the first switch is always mounted with a thyristor.
Integral Expander Application
Integral expanders are connected in a wired box. The expander in this case is mounted behind the adapter. Two-button switches are installed with a pad. It should also be noted that the filters used are of low conductivity. The top contacts of the switch always close in zero phase. It should also be noted that it is important to thoroughly clean the expander outlet.
The bottom contacts of the first switch go to the second phase. The conductor must be under the insulator. Trigger for a standard box fits with lining. The second switch in the circuit closes at the controller output. His top contacts go to the first phase. The insulator should only be used on discharge amplifiers.
