Buying a new technique, few people look at the power supply requirements, and in vain. In old houses, when installing powerful technology, there are problems: it may be necessary to pull a separate line. So connecting the cooking panel to save the warranty requires compliance with all PUE requirements. This means that you need a dedicated line with a corresponding wire cross section, with a protective automaton installed on the line. This line can end with a special outlet and can be a terminal box. If the socket is installed, the cable from the cooking surface must end with a power fork, when installing the terminal box, the ends of the wires are obsessed with the clips, you can fill them and turn them into the ring.
We understand how to connect a cooking surface
Warm Panel Connection Schemes
Almost all new models of European-made cooking surfaces can be connected to networks with different phases. In our country there are two standards: a single-phase network of 220 V and three-phase 380 V. In some houses 220V, there are two phases. If we talk about the number and colors of the wires, then what can be:
- Single-phase network 220 V.
- Two conductors. It is found in the houses of the old building. In this case, the wires of the same color usually. You can find the phase using the Prober (LED Screwdriver) or Tester. It is easier to work with a probe: if when you touch the probe to the current-carrying part, the LED lights up - this is a phase if not - neutral (zero).
- Three wires. Most often, the wires are colored. Red or brown is a phase, blue or blue - zero (neutral), yellow-green - earth. If the wires are the same, the phase is a probe, and to determine neutrals will have to look for a multimeter or tester.
- Network 220 V with two phases. This is already exclusively in new buildings, but it is rarely found. Phase wires in this case black and brown, neutral, as usual, blue and earth - yellow-green.
- Three-phase connection 380 V. When observing colors neutral and land have a conventional color, and the phases are yellow-red-green or other than another white-black-brown standard.
Connection options for one of the models
In order not to make a mistake, even if you see all the names named, it is better to check everything (call): often the builders are confused when installing. So that there are no trouble, check and sign (hang tags).
The peculiarity of the cooking panels is that they often go without a network cord. It is not from the greed of manufacturers, but because they can connect in several schemes that are used from three (we have from two) to six wires. Because the wires for connecting to the power meter, it is necessary to buy a network cable. It takes the same section as in the underwater, only it is more convenient to use stranded - they are well stuffed.
How to connect wires in the junction box read here.
Connect to a single-phase network
Most questions arise if it is necessary to connect an electric cooking panel to a network of 220 V. Most often the panel has 6 conclusions: three phase - L1, L2, L3, two neutrals (zero) N1 and N2 and grounding PE, and in the apartment only three Or generally two wires (in the houses of the old building). It is not scary - it is necessary to install jumpers, but first we are looking for where the terminals are located on the cooking panel.
A small panel with conclusions can perform above the surface, and maybe recessed
To get to the wires, we find a small lid on the back. It can be metallic or plastic, attached to the body with screws or snaps. Remove it. Inside there is a terminal block with six contacts. If the wires in the apartment are three, the hobs are combined with contacts:
- Three phase wires together (L1, L2, L3);
- two neutrals N1 and N2;
- Earth (green) wire connects to the ground.
If the equipment was bought in the store, it should come with mounted jumpers, which combine all the specified wires. The wires of the network cord are connected in this case to each group of contacts: one to phase, one - to neutral, and yellow-green - to the ground.
Connecting a cooking panel to the power grid: so should the jumpers for a single-phase network 220 V
If the jumpers are lost somewhere, you can make them from the copper wire with a cross section of 6 mm2. To connect it more convenient, use tips - fork or ring, to whom more convenient. It is more convenient to clamp multi-moist wires, and from one vein it is easier to bend the rings.
Copper isolated tips
With three wires on the network 220, the connection of the cooking panel will look like the photo below. Please note: "Earth" wire connects to the upper contact of the socket, the phase can be right or left - not so important, but the wires in the outlet should also be divorced. It is impossible.
Connection diagram of the cooking panel to a single-phase network
If the wires from the meter comes only two, you can enter in two ways:
- Make a separate ground circuit
- "Earth" out no use at all.
Installing the ground loop is needed if you want to save the warranty: when connected without grounding, it is invalid and with any damage to the cooking panel (even a clear factory marriage) in the warranty repair or replacement of equipment for a serviceable you will be denied.
How to connect the cooking panel 4 wires
Many ELECTROLUX models (Electrolux) and Zanussi (Zanussi) go with the installed cord. It seems that it is good, but it has four wires: zero, land and two phase (black and brown). If there are three of them in the apartment - it is not clear what and where to give: Connecting a four-core wire from the cooking panel has its own nuances.
How to connect if 4 wires comes from the cooking surface, and in the outlet of their three
In this case, also get to the location of the terminals on the back of the case. The lid in such models plastic, and not on bolts, but on clips. Just come up with a screwdriver.
Opening the box, look for the exit "Earth" (yellow-green). Near it is a jumper into two entrances. We take it and combine two phase outputs - L1 and L2 (the conductors of black and brown) are connected. Just having a little weakening the contacts (turning the screws with a screwdriver), apply the jumper, after the contacts are tightened. Everything else without change. In the future, when the plug is connected, only the brown wire is used, and the black is well inlate (better - a heat shrink tube).
How to connect an RJ-45 online outlet and read the connector here.
Connecting a cooking panel to three-phase network 380 V
To connect the cooking panel to the 3 phase network, a cable of five copper conductors with a cross section of 2.5 mm2 is required. Single-core or stranded - optional.
In this case, the jumper is necessary only on two wires of neutral - N1 and N2 (in some models there is only a digital designation, there are 4 and 5 output). You do not need to change anything on the phase wires: each phase is connected one of the phase wires.
Cable for connecting the cooking panel to the three-phase network
The cable may have such a color as in the photo, and maybe another. According to the second phase standard, colors are: red, yellow, green. This is not so important. It is much more important to connect all the wires to the fork, and not to confuse them on the outlet.
How to connect the plug to the cooking panel for 380 V
Please note that in this case neutral is connected at the top, the land is lower, and the phase wires in the middle. The same order should be repeated on the outlet.
If there is a cord from 4 conduits from the equipment, one of the phases on the plug is simply not used. What is all the same, just do not use the same outlet in the outlet.
220V with two phases
If four wires arrive in the apartment and from the panel - everything is simple. Connect the appropriate colors. Discussions usually do not happen: phases - black and brown, zero - blue, earth - yellow-green. Difficulties arise if the outputs six or cord goes with five wires.
As you probably guessed, two phases are combined. The strength remains and combining two neutrals (if any). Everything else connects to the appropriate plug contacts.
Connect to two-phase network
The location is similar: at the top of the neutral, bottom is the ground, in the middle of the phase. Do not forget, which of the phase outputs you are empty to not redo.
Cable and automatic selection
As you already understood, it will have to lay a separate line from the shield to the cooking panel. Most likely you will lay it hidden, in the box, corrugation or stroke. It is allowed to use only a copper cable:
- For a single-phase network at the power of electrical equipment from 5.5 kW to 7.7 kW cable with a cross-section of the vein 6 mm2 (WG 3 * 6 or PVS 3 * 6);
- For three-phase to power, 16.4 kW is enough 5 * 2.5 mm2 (KUVB 5 * 2.5 or KGVV 5 * 2.5);
After going from the meter, you must install the machine. This requirement is mandatory. There are still recommendations - to protect the equipment and ensure due security to install the RCD (protective shutdown device). Such a bunch allows you to turn off the power not only when overloading (automatics works), but also with insulation problems (the RCD is triggered). Uzo - a thing is not the cheapest, but the cooking panel is incomparably more expensive, so it is better not to save.
Connection schemes of the cooking panel to the electric meter
About the parameters of this equipment:
- For a single-phase network, we take a 32 A automatic machine, UZO 40 A with a differential shutdown current of 30 mA.
- For a three-phase - automatic device 16 A and UZO at 25 A with a differential shutdown current of 30 mA.
They are connected between them with sections of the wires of the same section (scheme in the photo above): in the network 220 V 6 mm2, in a network of 380 V 2.5 mm2.
Machine and Uzo connection
About the assembly of the electric shield do it yourself here.
Socket and fork
Connecting the cooking panel should be made using power outlets and forks or terminal box. Power outlets and forks are designed for currents more than 10 A, made of special plastic, can have a lid. The selection rule is simple: their rated current should be no less than the current of the machine. That is, to connect an electrical appliance to 7.7 kW to a single-phase network we take 32 A, for three-phase - on 16 A.
How can the rosettes and plugs for the cooking panel
There is no single standard, so the shape and location of the pins can be different, it is important that the required number of contacts and electrical characteristics are suitable. Clear business: Better to trust proven brands, not Chinese products.
You can connect the cable from the instrument and feeds in the terminal box. This method is called another non-disconnect connection, "directly" or "direct". It is more reliable, but to turn off the plate will have to go to the electrical shield and turn off the switch on the RCD or machine.
Terminal box for three-phase network
For a three-phase connection, it is better to use the Schneider Electric 102x100x37 IP44 40A (KLK-5S) box. She is not cheap, but reliable and looks decent: you can not hide. It can also be used for a network of 220 V - wire with a cross section of 6 mm2 in the terminals will become the extra phases will simply be empty. For the connection, the wires are inserted into the holes available on the side, and they are tightened by the bolts whose nozzles are visible in the photo.
As you can see, at the top three pairs of contacts for connecting phases (1,2,3). Below - for Earth and neutral. On the one hand, the feed cable is started, on the other - from the electrical appliance.
If you wish, you can save and buy a simple block, but with good quality contacts and a separate mounting box with a lid.
Option is simpler
The wires in such terminals are connected simply: rings (as in the photo above) are formed from the stripped end of the copper wire, which are inserted into small screws with plates on them. The wire is inserted into the socket, the contact is tightened with a screwdriver.
If the wire is stranded, the ring from it is problematic. Then you can use tips (photos at the beginning of the article). They are crimped with ticks (can be replaced by passage).
These are all highlights. Now the independent connection of the cooking panel will not be a problem. The same rules act and when connecting other techniques of the same power. For less powerful, it will only be necessary to take a smaller cross section of the conductors and a smaller nominal value of automata.
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