Distribution boxes. Kinds. Wire connection in junction box. Installation of podozetnikov

Types of electrical distribution boxes

Content

• The origin of the various names
  • Distinctive features
  • Junction Box Installation Requirement
  • Concealed wiring box
  • Box for outdoor wiring
  • Different types of junction boxes depending on the destination
  • Results

Since the first node of a branched electrical circuit appeared, it has become necessary to protect both himself from external influences and people from accidental contact with bare conductors.

Already during the first steps of electrification, there was an urgent need to protect the twisting of wires with the help of boxes, which became known as razvetvitelnymi (distribution, raskayachnymi, rasteechnymi, rasklyuchatelnym).

Previously, for these purposes, improvised means were used, as a rule, tin cans. Such an installation was neither fast nor reliable - it was necessary to make holes for the wires, and make sure that they did not damage the torn edges.

The evolution in electrical engineering led to the fact that manufacturers of electrical equipment quickly responded to the need, and began to produce junction boxes of various sizes, types and purposes.

The origin of the various names

The junction box has many synonyms, in part because of the way the wires are connected inside the box. For example, until recently soldering of wires was considered as the most reliable connection.

Since the voltage from the input cable was distributed between different lines in the junction box by the method of desoldering wires, these boxes were called soldering or crumpled boxes.

Similarly, another term appeared - “disconnection”, formed from two concepts - distribution and connection. When they say "disconnection of wires", they mean the connection in the nodes of the respective conductors according to the electrical circuit.

Nowadays, electricians use more advanced methods of connecting wires - a variety of terminal blocks, connecting insulating clamps, self-clamping terminals, crimping with sleeves and even welding, but still continue to call the data box soldered.

Therefore, in the catalogs of stores you can often find electrical products called “junction box”, “junction box”, “distribution box”, “junction box” and you might think that these are different groups of goods, although in fact there is no difference between these names , that is, all terms will mean the products depicted in the picture:

Distinctive features

Differently named junction boxes differ in other ways:

• Size, shape;
• Manufacturing material;
• Purpose;
• Installation method with respect to hidden or open wiring;
• The material of the wall in which the hidden box is mounted;
• The degree of electrical protection by IP;
• The number of connected cables;
• The presence of built-in terminals, bus connection;
• The nature of the distribution: introductory, continuous, end.
• The method of mounting the protective cover.

Protection Levels Table

These signs are often interrelated, below are a few examples:

• the size of the space in which they should fit depends on the number of connected wires;
• the degree of electrical protection, which means leaktightness, determines the design, material and appearance of the box;
• the number of required terminals depends on the nature of distribution and the number of cables - the input box contains a greater number of nodes than the terminal;
• The type of wiring determines the shape and appearance of the box.

Protection Levels Table

Junction Box Installation Requirement

There is one important rule concerning all types - access to the connection points of wires for inspection, maintenance, modification and repair should always be provided.

As is well known, conductor metal has fluidity - the property to deform under pressure with a loss of elasticity, due to which the terminal clamp loses its mechanical strength, therefore its electrical conductivity deteriorates.

Under such circumstances, the place of contact is heated under heavy loads, which leads to thermal expansion and further deterioration of the strength characteristics - such a contact starts to spark, the contact surfaces burn, the destruction processes become avalanche-like and the connection fails.

Burnt wiring

Therefore, the clamps must be regularly tightened. Even if Wago terminal blocks are used that do not require maintenance, you still should not bury the lid tightly - the lion's share of breakdowns in the wiring falls on the junction boxes.

Another option with VAGO

Fans of aesthetics in this case can be advised to use removable elements of the decor for masking the lid immediately, than to invent something, lamenting about damaged wallpaper, if something burns out in the box.

Concealed wiring box

As a rule, distribution boxes for wiring of the latent type have the form of the cylinder. This is due to the fact that it is easier to drill a cylindrical blind hole in the wall with a drill and a special drill bit than to gouge a rectangular niche in the wall material.

hidden junction box

Therefore, these boxes have standardized sizes, and accordingly, they are commercially available drills for these diameters. The most common size is 60 mm. This is due to the fact that the most popular installation box for switches and sockets (socket) also has these dimensions, which allows you to use one drill when installing them.

crown 60 mm

But often these sizes are simply not enough to accommodate all the wires and their connections, therefore, split boxes of large diameters are used: 70, 80, 100 mm.

installation of distribution box

Box for outdoor wiring

For external wiring, the junction box is made both cylindrical and rectangular.

But rectangular is more convenient - it turns out more free space to connect the wires, it is possible to install terminal blocks or several rows of distribution buses, you can install several parallel inputs on the sides of the box.

Junction box with terminal strip

The box for external electrical wiring is often operated in adverse climatic conditions, so it is necessary to seal the inner space so that the conductors are not exposed to the corrosive effects of moisture and dust, and that it is completely unacceptable - to ingress of water inside.

The tightness of the box determines its IP protection degree (ingress protection - penetration protection). The first letter means protection from dust and solid objects, the second - from moisture and liquids.

The appearance of the sealed junction box, designed to work in explosive conditions:

Different types of junction boxes depending on the destination

Obvious is the dependence of the material of the junction box on its purpose and tightness - for working in especially dangerous and corrosive environments, thick-walled stainless steel is used, for open wiring plastic walls to provide the necessary impact resistance.

Distribution boxes for concealed wiring are the cheapest in terms of cost - all mechanical and protective functions are performed by the wall. The purpose of the box also determines its internal structure, for example, the UK-2P box with built-in connection terminals is used to branch lines of wired radio.

Photo_УК2П

A similar system, but already for disconnection of power wires is used in the box for external wiring:

The mounting and wiring box of the hidden type wiring for drywall has special presser feet, pressed against the reverse surface of the drywall, thereby fixing the cylinder in the hole.

drywall junction box with special presser feet

When installing open wiring on the floor use floor junction boxes:

If the wiring is under the floor, then use special boxes, equipped with sealed covers or hatches

distribution box with hatches

Floor junction boxes can also have built-in sockets:

electrical distribution box with sockets

For hidden wiring in wooden houses use exclusively metal boxes.

Metal shredded boxes

For various monitoring and control systems, boxes with built-in low-voltage low-current terminal blocks are used:

For work in switching systems of three-phase load boxes with multiple terminals are used.

For the distribution of three-phase voltage it is more appropriate to use several parallel buses in the box:

Results

Different junction boxes have their own ways of sealing the contact connections of wires - depending on the degree of IP, a variety of gaskets and seals are used, from ordinary rubber, cut with a knife in the right place to the required diameter, to completely waterproof, clamped with special couplings.

In order to install any junction box presented above with your own hands, you need to study the appropriate instructions, in which the manufacturer must describe in detail all the characteristics and nuances of installation.

Wire connection in junction box

We perform connections in the junction box

The correct connection of wires in the junction box is in many ways the key to the reliability of your electrical network. Indeed, unlike the connections in the switchboard, switchboards or, as they are also called, the junction boxes are more closed for service and the contact connections here are much more difficult to check. That is why, even at the stage of installation, their quality and accuracy should be given maximum attention.

Wire connection

Before connecting the wires in the junction box we advise you to study the rules of their installation. After all, it is important not only to connect the wires to each other qualitatively, but also to correctly bring them into the junction box, as well as conveniently arrange them for possible inspection or repair.

Wiring Rules in a Junction Box

First of all, let's consider the rules applicable to the arrangement and installation of wiring in the distribution network. After all, it is with this factor begins any installation.

Wiring Rates in Junction Box

So:

• First of all, it should be remembered that no more than eight groups of wires are allowed in one shter, box or pipe.
• All connections should be made in accordance with clause 2.1.17 - 2.1.30 OES . These items provide a range of restrictions. First of all, it should be remembered that the wire before any contact must have a supply sufficient for at least one re-connection.
• Before connecting the wires in the terminal box, make sure that they do not have tension . Or that this tension will not occur when the temperature drops.
• Any wire connections should be available for repair and inspection . In this case, these places should be organized so that the inspection was not hampered by structural elements.
• Any connection must be insulated. At the same time, this insulation should correspond to the level of basic insulation. To achieve these parameters, it is better to use electrical tape or heat shrink.
• The junction boxes themselves must be made of fireproof or slow-burning materials , as in the video. This is especially true of wiring for combustible structures, which are subject to additional requirements.

Wire connection options in the junction box

First of all, let's look at how to connect the wires in the junction box. After all, contact connections are often the most vulnerable point of any electrical network and any flaws manifest themselves very quickly.

According to clause 2.1.21 of the electrical installation code, all connections of wires and cables should be made by welding, soldering, crimping, screw or bolt clamp. Other connection methods, especially for twisting, are not allowed. Based on this, let's consider each of the possible connection methods separately.

So:

• The most reliable is the connection of wires by welding . It has the smallest contact resistances, as a result, increased heating is practically absent. In addition, over time, such a connection does not lose its properties.

Welding of wires in the junction box is performed using a special welding transformer and a carbon electrode. The cost of such products is large enough for easy replacement of wiring in the apartment, so you can often find homemade devices. Usually it is transformers up to 600 W and voltage 9 - 36V.

• In second place in terms of reliability is the connection by soldering. This method is more accessible for home use because it does not require special equipment other than the usual soldering iron.

Soldering wires in the junction box is carried out using conventional technology and does not impose special requirements. The only point worth paying attention to is the quality of such compounds. Indeed, in the case of heating, the tin will quickly heat up and the contact will disappear. In order to prevent this from soldering, they are often combined with a twisting method.

• Crimping wires has recently become increasingly popular. After all, a large number of fairly cheap tools for crimping wires appeared on the market, and the price of consumables for this method is quite low.

• But the most common is still the method of screw or spring clamp lived . A huge number of tires and terminals, now on the market, allow for a fairly reliable connection of wires.

Note! Screw terminals should be clamped single-core wire. If you use stranded copper wire, then you need to purchase special lugs that will not allow the screws to break off the stranded wire strands when clamping. These tips are attached to the wire by crimping.

Connection diagrams in junction box

Having an idea of ​​the methods of connection, we can talk about how to properly connect the wires in the junction box. At home, you will need knowledge of how to connect an outlet and a switch. But first, let's look at the scheme of the junction box itself.

Junction box layout

The junction box is designed to connect electrical receivers to the supply wire. It is usually located at the entrance to the room above the switch. The switch should be located at the entrance to the room from the side of the door handle.

• The junction box can be a through and final one. The final is a box that does not have connections to other distribution boxes. Pass-through junction box, respectively, has connections to other junction boxes.

The photo shows the connection option of the final junction box.

• In the junction box can be located the lead wire from one or more groups. If there are several input wires, then in accordance with paragraph 7.1.36 of the OLC, their combination is not allowed.
• Each input cable must have at least three wires. One of them is phase, the second is zero and the third is protective grounding. If there is no ground wire in the junction box, it is prohibited to form it by connecting to the neutral wire.
• Согласно п.1.1.29 ПУЭ нулевой провод должен иметь голубую окраску, а провод заземления желто-зеленую. При этом фазный провод может иметь любой другой цвет.

Note! Если в вашей сети освещения разные группы запитаны от разных фаз трехфазной сети, то фазный провод должен иметь окраску, соответствующую фазе трехфазной сети. То есть фаза А должна иметь окраску желтого цвета, фаза В – зеленого и фаза С – красного цвета.

Схема подключения в распределительной коробке розетки

Теперь переходим к вопросу как соединить провода в распределительной коробке для подключения одной, двух и более розеток. Для этого нам понадобится трехжильный провод с сечением соответствующим суммарной нагрузке всех розеток.

Подключение в проходной распределительной коробке розетки

So:

• Подключение производится в следующем порядке. На вводном проводе группы находим контакт заземления и к нему подключаем соответствующий по цветовому обозначению контакт провода, подключаемого к розетке.
• Нулевой провод от кабеля, питающего розетку соответственно подключаем к нулевому проводу вводного кабеля, а фазный к фазному.
• Такие же подключения выполняем и на розетке. К силовым контактам подключаем нулевой и защитный провод, а к заземлению розетки защитный провод. Подключение фазного и нулевого провода к контактам розетки не имеет значения, но обычно фазу подключают к левому контакту.
• Если вам необходимо подключить еще несколько розеток, то инструкция допускает их подключение на контактах предыдущей розетки. То есть розетка может выполнить роль распределительной коробки. Главное помнить о сечении проводки, которое должно соответствовать нагрузкам.

Схема подключения в распределительной коробке выключателя

А вот распайка проводов в коробке для подключения выключателя несколько сложнее и зависит от количества контактов выключателя. Так для одноклавишного выключателя проводов должно быть два, для двухклавишного – три, а для трехклавишного – четыре.

Подключение выключателя в распределительной коробке

• Прежде всего рассмотрим подключение одноклавишного выключателя. Согласно норм ПУЭ коммутационные аппараты устанавливать можно только на фазный провод. Поэтому к выключателю должен быть подключен фазный провод. Для этого делаем соответствующее подключение в распределительной коробке.
• Контакт с выхода выключателя должен идти к светильнику, который он коммутирует. Сделать это можно и непосредственно, но дабы не делать разных штроб для фазного и нулевого провода к светильнику, обычно их объединяют. Для этого провод с вывода выключателя в распределительной коробке подключают к фазному проводу светильника.
• Соединение проводов в распаечной коробке для нулевого и заземляющего контакта светильника выполняется прямым подключением к соответствующим клеммам.
• Если планируется установка двух и более клавишного выключателя, то изменяется только подключение провода от вывода выключателя. При этом подключение нулевого и заземляющего провода не изменяется.
• 

Подключение двухклавишного выключателя в распределительной коробке

• В данном случае у нас будет два фазных провода от светильника. С выключателя так же будет выходить именно два фазных провода. Подключить их между собой можно в произвольном порядке. Ведь от этого будет зависеть только количество и местоположение ламп включаемых каждой клавишей.
• При необходимости внести изменения вы это легко можете сделать своими руками. Для этого достаточно изменить подключение между собой проводов от выключателя и от светильника в распределительной коробке.

Conclusion

Как и электрическая распределительная коробка соединение проводов на любых других участках должно отвечать высоким требованиям. Поэтому не стоит пренебрегать нормами ПУЭ к данному вопросу. Ведь лучше выполнить качественное соединение еще на этапе монтажа, чем потом искать проблему в уже действующей электрической сет

Выполняем подключения в распределительной коробке

Правильное соединение проводов в распределительной коробке во многом является залогом надежности вашей электросети. Ведь в отличие от соединений в распределительном щите распределительные или как их еще называют распаячные коробки более закрыты для обслуживания и контактные соединения здесь значительно сложнее проверить. Именно поэтому еще на этапе монтажа их качеству и правильности следует уделить максимальное внимание.

Соединение проводов

Перед тем как соединять провода в распределительной коробке советуем вам изучить правила их монтажа. Ведь важно не только качественно соединить провода между собой, но и правильно завести их в распределительную коробку, а также удобно расположить для возможного осмотра или ремонта.

Правила монтажа проводов в распределительной коробке

Прежде всего давайте рассмотрим правила, предъявляемые к обустройству и монтажу проводки в распределительной сети. Ведь именно с этого фактора начинается любой монтаж.

Нормы монтажа проводки в распределительной коробке

So:

• Прежде всего следует помнить, что в одной штробе, коробе или трубе допускается прокладка проводов не более восьми групп.
• Все соединения должны выполняться в соответствии с п.2.1.17 – 2.1.30 ПУЭ . Данные пункты предусматривают целый спектр ограничений. Прежде всего следует помнить, что провод перед любым контактом должен иметь запас, достаточный как минимум для одного повторного подключения.
• Перед тем как соединять провода в распаечной коробке следует убедиться, что они не имеют натяжения . Либо что это натяжение не возникнет при температурных перепадах.
• Любые места соединения проводов должны быть доступны для ремонта и осмотра . При этом эти места следует организовывать так, дабы осмотр не был затруднен элементами конструкции.
• Любое соединение должно иметь изоляцию. При этом эта изоляция должна соответствовать уровню основной изоляции. Для достижения данных параметров лучше использовать изоленту, либо термоусадку.
• Сами распределительные коробки должны изготавливаться из несгораемых или трудносгораемых материалов , как на видео. Особенно это касается монтажа проводки по сгораемым конструкциям, к которым предъявляться дополнительные требования.

Варианты соединения проводов в распределительной коробке

Прежде всего давайте рассмотрим способы соединения проводов в распределительной коробке. Ведь именно контактные соединения зачастую являются наиболее уязвимым местом любой электрической сети и любые недоработки проявляются очень быстро.

Согласно п.2.1.21 ПУЭ все соединения проводов и кабелей должны производится сваркой, пайкой, опрессовкой, винтовым или болтовым сжимом. Другие методы соединения, особенно это касается скрутки, не допускаются. Исходя из этого давайте рассмотрим каждый из возможных методов соединения по отдельности.

Соединение методом сварки

So:

• Наиболее надежным считается соединение проводов методом сварки . Оно имеет наименьшие переходные сопротивления в результате чего, повышенный нагрев практически отсутствует. Кроме того, со временем такое соединение не теряет своих свойств.

It is not necessary to use a welding electrode and a carbon electrode. You can often find homemade devices. Usually it is transformers up to 600 W and voltage 9 - 36V.

• In second place in terms of reliability is the connection by soldering. It is not a special soldering iron.

Solder wire connection

Soldering wires in the junction box is carried out using conventional technology and does not impose special requirements. The only point worth paying attention to is the quality of such compounds. Indeed, in the case of heating, the tin will quickly heat up and the contact will disappear. In order to prevent this from soldering, they are often combined with a twisting method.

• Crimping wires has recently become increasingly popular. After all, a large number of fairly cheap tools for crimping wires appeared on the market, and the price of consumables for this method is quite low.

Wire connection crimping method

• But the most common is still the method of screw or spring clamp lived . A huge number of tires and terminals, now on the market, allow for a fairly reliable connection of wires.

Note! Screw terminals should be clamped single-core wire. If you use stranded copper wire, then you need to purchase special lugs that will not allow the screws to break off the stranded wire strands when clamping. These tips are attached to the wire by crimping.

Connection diagrams in junction box

Having an idea of ​​the methods of connection, we can talk about how to properly connect the wires in the junction box. At home, you will need knowledge of how to connect an outlet and a switch. But first, let's look at the scheme of the junction box itself.

Junction box layout

The junction box is designed to connect electrical receivers to the supply wire. It is usually located at the entrance to the room above the switch. The switch should be located at the entrance to the room from the side of the door handle.

• The junction box can be a through and final one. The final is a box that does not have connections to other distribution boxes. Pass-through junction box, respectively, has connections to other junction boxes.

The photo shows the connection option of the final junction box.

• In the junction box can be located the lead wire from one or more groups. If there are several input wires, then in accordance with paragraph 7.1.36 of the OLC, their combination is not allowed.
• Each input cable must have at least three wires. One of them is phase, the second is zero and the third is protective grounding. If there is no ground wire in the junction box, it is prohibited to form it by connecting to the neutral wire.
• According to clause 1.1.29 of the ПУЭ, the neutral wire must have a blue color, and the ground wire is yellow-green. At the same time the phase wire can have any other color.

Note! If in your lighting network different groups are powered from different phases of a three-phase network, then the phase wire must have a color corresponding to the phase of a three-phase network. That is, phase A should have a yellow color, phase B should be green and phase C should be red.

Connection diagram in the socket outlet box

Now we come to the question of how to connect the wires in the junction box for connecting one, two or more outlets. To do this, we need a three-core wire with a cross section corresponding to the total load of all sockets.

Connection in the distribution box of the socket

So:

• Connection is made in the following order. On the lead-in wire of the group, we find the grounding contact and to it we connect the contact of the wire connected to the outlet corresponding in color designation.
• The zero wire from the cable that supplies the outlet is respectively connected to the neutral wire of the input cable, and the phase cable to the phase one.
• We carry out the same connections on the outlet. We connect the neutral and protective conductor to the power contacts, and the protective conductor to the outlet grounding. Connecting the phase and neutral wires to the pins of the outlet does not matter, but usually the phase is connected to the left contact.
• If you need to connect several more sockets, then the instruction allows you to connect them to the contacts of the previous outlet. That is, the socket can perform the role of a junction box. The main thing to remember about the cross section of the wiring, which must correspond to the loads.

Connection diagram in the switch box

But the wiring of wires in the box for connecting the switch is somewhat more complicated and depends on the number of contacts of the switch. So for the one-button switch wires should be two, for the two-keyboard - three, and for the three-keyboard - four.

Connection of a switch in a junction box

• First of all, consider connecting a single-key switch. According to the rules of electrical power supply, switching devices can be installed only on the phase wire. Therefore, a phase wire must be connected to the switch. To do this, make the appropriate connection in the junction box.
• The contact from the switch output should go to the luminaire that it commutes. This can be done directly, but in order not to make different strobe for the phase and neutral wires to the luminaire, they are usually combined. To do this, the wire from the output of the switch in the junction box is connected to the phase wire of the lamp.
• The connection of the wires in the terminal box for the zero and ground contact of the luminaire is made by direct connection to the corresponding terminals.
• If it is planned to install two or more key switches, then only the connection of the wire from the output of the switch changes. At the same time, the connection of the zero and ground wire does not change.

Connecting a two-button switch in a junction box

• In this case, we will have two phase wires from the lamp. With the switch it will also leave exactly two phase wires. You can connect them to each other in any order. After all, only the number and location of the lamps included with each key will depend on it.
• If necessary, make changes you can easily do it yourself. It is enough to change the connection between the wires from the switch and from the lamp in the junction box.

KUZ - universal boxes in insulated facade

This is a universal box, which, thanks to a well-thought-out construction, allows installation in solid walls and in facade insulation systems. A big advantage is the ability to adjust the installation depth of the box on demand of a particular installation.

The offer of these boxes is supplemented by the possibility of using two covers, the first main and the second with the possibility of opening without the use of tools. The hinged cover is equipped with a spring and a lock. The hinged cover series includes a mounting plate that allows installation of classic instruments. In case of their installation in insulated facades, the devices are safely hidden under the hinged lid. The covers installed in the boxes provide IP 30 protection, but after applying a suitable additional seal, IP 44 protection is achieved.

KUZ boxes can also be used as wiring junction boxes; for this option, S-KSK 2 terminal boxes are provided, as a box for installing electrical devices or lightning conductor terminals or other customer solutions.

Due to the wide range of applications, KUZ boxes are divided into four configurations:

KUZ-V - universal box with lid

KUZ box kit with lid V 180.
The kit is intended for installation in solid walls or direct installation in insulation materials for building facade insulation.
The box has the ability to adjust the installation depth from 85 to 140 mm.

Material: PC ABS, self-extinguishing, halogen-free
Size: box 196x156x85-140 mm, cover 210x170 mm
cover 210x170 mm

KUZ-VO - universal box with a hinged lid

The solution of the KUZ-VO variant is such as the KUZ-V, only the box is equipped with a VO 180 hinged lid, which allows opening without the use of tools.
The interior of the box is available for installation and classic devices that will be hidden under the surface of the wall.
The kit includes a mounting plate that allows the installation of various devices.

Material: PC ABS, self-extinguishing, halogen-free
Size: box 196x156x85-140 mm, cover 210x170 mm
cover 210x170 mm

KUZ-VI - universal box in the facade insulation system with a lid

The set under the designation KUZ-VI is designed for installation in facade insulation systems. The box is identical with KUZ-V, only supplemented by a carrying pipe, external and internal insulation, fixing material for fastening the pipe to the wall and self-tapping screws for fastening the box to the pipe.
The kit allows use in insulated facades with a minimum thickness of 120 mm. The maximum thickness of insulation is 300 mm. The advantage of this option is that the bottom of the box is insulated from the base, which limits the occurrence of thermal bridges.

Material: PC ABS, self-extinguishing, halogen-free
Size: box 196x156x85-140 mm, cover 210x170 mm
cover 210x170 mm

KUZ-VOI - universal box in the facade thermal insulation system with a hinged lid

The KUZ-VOI kit as well as the KUZ-VI kit is intended for installation in facade thermal insulation systems, it only contains a hinged cover VO-180.
The kit is designed to install devices that will be installed under the surfaces of the facade. Also suitable as KUZ-VI for classic devices, switches, sockets, three-phase sockets or also for example. to hide the output of the garden hose.

Material: PC ABS, self-extinguishing, halogen-free
Size: box 196x156x85-140 mm, cover 210x170 mm
cover 210x170 mm

It is also possible to install the socket in mineral wool using a special socket.

Electrical installation in the insulated facade (sockets in mineral wool)

Kez

Wiring boxes used in building facade insulation

Designed for installation of devices (sockets, switches) on the thermal materials for thermal insulation of building facades. Due to its design, the emergence of thermal bridges is prevented. The use of a KEZ box allows you to install electrical appliances with an insulation thickness of 50 to 200 mm.
The set includes dowels, screws, bolts, holders for fixing the box and instruments.
The box must be installed devices with appropriate protection (IP) from the environment.


Size: 120 x 120 x 200 mm
Material: self-extinguishing halogen-free PP
Temperature stability: from -25 to +60 ° С

Package includes:

User's manual:

1. Before installation it is necessary to reduce the length depending on the thickness of the insulation layer of the facade of the building.

2. KEZ, KEZ-3 - Wiring boxes used for thermal insulation of buildings
The supporting structure is attached to the wall with screws and dowels, depending on the type of material.
A cable is pulled through the supporting structure and shorted insulation is inserted.
With the help of 4 screws (included), the box in which the necessary devices are installed is attached to the structure.

KEZ-3

Wiring boxes used in building facade insulation

Type -3 allows installation of instruments in multi-site frames with a thickness of insulation from 100 to 250 mm.
Size: 120x120x250 mm

MDZ

Mounting plate used for thermal insulation of building facades

It is intended for installation of electrical appliances (outdoor lighting, motion sensors, power sockets up to 400V, etc.) on the warmed walls of building facades. Due to its design prevents the emergence of thermal bridges.
Not intended for installation of satellite dishes and other bulky structures. The use of a mounting panel allows you to install equipment with an insulation thickness of 50 to 200 mm.
The area for installation of equipment is 120x120 mm. The set includes dowels, screws, bolts, holders for fixing the box and instruments.
Individual MDZ can be interconnected, which allows, if necessary, to increase the area of ​​the installation field.

Size: 120 x 120 x 200 mm
Material: self-extinguishing halogen-free PP
Temperature stability: from -25 to +60 ° С
Load: max. 4 kg

Package includes:

User's manual:

1. Before installation it is necessary to reduce the length depending on the thickness of the insulation layer of the facade of the building.

2. MDZ - Mounting plate used for thermal insulation of building facades
The supporting structure is attached to the wall with screws and dowels, depending on the type of material.
A cable is pulled through the supporting structure and shorted insulation is inserted.
With the help of 4 screws (included), the box in which the necessary devices are installed is attached to the structure.

Conclusion

As with the electrical junction box, the connection of wires in any other areas must meet high requirements. Therefore, you should not neglect the rules of OLC to this issue. After all, it is better to perform a high-quality connection at the installation stage than to look for a problem in an already existing electrical network.