Why does the circuit breaker operate?

network overload The most common reason that the circuit breaker is disconnected( AB) is because it simply did its job - protecting the wiring from overload and further failure. When we considered the technical characteristics of automatic machines, it was said that each model has its own rated trip current: 6, 10, 16, 25 A, etc. Now if you simultaneously turned on several powerful electrical appliances, the current of which exceeded the setpoint, do not be surprised why it dislodges the circuit breaker in the house. For example, you have a 16A automatic rifle on the shield( a classic situation for old wiring) and you turned on the washing machine, the air conditioner, the electric kettle and the boiler at one time. The load on the network has increased noticeably, as a result of which AV has disconnected, thereby protecting the wiring.

There are several ways to solve the problem. The first and the simplest is to turn on the powerful household appliances in turn, so that there is no overload. The second is to replace the machine with a 25-amp. This can be done only if the wiring can withstand the load( copper, the cross section of the veins is not less than 2.5 mm2).The third, the most reliable, is to replace the electrical wiring in the house with a new one, which will be able to withstand the powerful household appliances.

Reasonably explains the reason that the automatic knocks out, on the video:

We draw your attention to the fact that after the machine kicks out, if it is with a thermal release, it will not turn on immediately. This is due to the principle of the product. When the mechanism has cooled down( the time may reach several minutes), try re-engaging the lever in the "On" position.

Malfunction of household appliances

If the machine knocks out frequently and at approximately the same time period, it is likely that one of the electrical appliances is defective. For example, if you notice that the circuit breaker is triggered when the washing machine, electric stove or water heater is turned on, disconnect this equipment and see how the device behaves without electrical appliances. Triggering does not happen? It is necessary to search for a malfunction in one of the connected "culprits".About how to repair household appliances with their own hands, we told you in the relevant section of the site.

Quickly find a faulty technique can be an exception method. Turn off all plugs from the sockets and plug them in one by one. On the device, which is short, the circuit breaker will trip under load.

If you disconnected all the equipment from the network, and the machine turns off, then it could be in the wiring. What to do in this case, we will discuss further.

Corrects the wiring of

Another reason why AV is often knocked out is a short circuit in the wiring. The phase in some place touches zero, resulting in a short circuit and the machine performs its second protective function - short circuit protection. If all consumers are disconnected from the network and the operation is triggered, the wiring should be fully checked. It takes quite a long time and, in addition, you need to be careful to find a malfunction.

First of all you should disassemble all the sockets and light switches, check the quality of the wiring to the terminals. If the wires are loose, tighten the cogs. After the sockets go to the junction boxes. Make sure that the connection of the wires in the junction boxes is qualitative, there are no exposed areas that can shorten. After the boxes you need to go to the lights. Very often novice electricians forget to check the chandelier, if the machine knocks out without load. The testing technology is similar to the sockets - check the reliability of the connections.

In the last place you need to check the wiring, which in most houses and apartment is hidden( in the wall).It is best in this case to use a special device that can quickly and accurately find a fault. However, at home, hardly anyone has it, so you can get out of the situation with a multimeter. How to determine the short circuit in the wiring using the tester, we told in the relevant article. If this also does not help, we recommend that you call a master who, using a thermal imager or other devices, will find a short circuit and eliminate it.

AV

out of order Well, the most rare reason, which is also not excluded - is the poor quality of the machine that knocks out due to the fact that it is defective. If you are sure that the wiring and household appliances are intact, and the overload does not arise - check the machine by replacing it with a similar one. With confidence, it can be said that this will help to fix the problem. In order to avoid such a case in the future, we recommend that you familiarize yourself with the rating of the best manufacturers of circuit breakers and choose one of the list.

What else could it be?

In addition to the above reasons, which knocked out the machine in the shield, there are also other, rarely occurring. In brief, we will look at them too.

If the circuit breaker is triggered when the light bulb burns out, do not worry, it sometimes happens. The fact is that when the lamp burns, there is a short-term overload and if the rating is an automatic 6-10A, it may well be knocked out. With LED and fluorescent lamps this will not happen.

Sometimes on the forums you can find a situation when AV knocks out when the stabilizer is turned on. Here, too, their nuances associated with the operation of the device and your own inattention. The fact is that the voltage stabilizers at start-up create a current that can exceed the nominal value of your machine, as a result of which it will knock out. Maybe there is another reason in the stabilizer itself. Cheap Chinese models are famous for their marriage.

If triggering occurs when the light is on, check the luminaires with a multimeter. We also talked about how to use the multimeter.

The trivial reason for switching off the machine is the wrong connection of this device. If the wires are not tightened to the terminals, there is heating in this place, as a result of which the thermal release can operate. Determine the cause will help visual inspection - the melted case and the insulation of the wire. If the plastic is strongly melted, it is better to replace the circuit breaker. For minor damages, it is permissible to simply tighten the veins with a screwdriver.

Let's move a little from the topic, but still note the important. If you have an input and group automatic machines in the switchboard, it will be easier to find the cause. Knocks out AV on input, without group? Check that the flap is assembled correctly. If a certain automaton is turned off below the main one, then there is a malfunction in this group( lighting, sockets or a separately connected hob).

It happens that the problem occurs after flooding the apartment. Water falls on the connections of wires and if they are twisted with electrical tape, it is unstuck, resulting in the closing of contacts. After the flood, it is necessary to make a revision of the wiring, in order not to reach the situation when the circuit breaker will start to operate.

Here we are and provided all the reasons why the machine shoots in the shield. Please note that this situation can occur both in the apartment and in the private sector. Act in the same way, even if the circuit breaker on the pole is turned off! If you are not confident in your abilities, it is better to call a master who will safely find a malfunction and eliminate it!

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