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The switch "mass" for the old Niva


Because of my skills, sometimes I have to repair electrical equipment and wiring in the cars of neighbors and acquaintances. As a rule, these are not Kruzaki or Cayenne, or supercars not stuffed with electronics.

These are ordinary, working machines. Both Russian and bourgeois. And the tractor and even motorcycles. Ignition locks are usually directly connected, half of the bulbs do not light up, instead of fuses there are usually pieces of wire, paper clips, coins, cloves - anything you want to keep current flowing. In many cases, the wiring in many places is fused and all on the "snot". What to do, the services of a good auto electrician are not cheap, so they do it, whoever is much worth it.

But the fact that the car burns down to an average of 5 to 8 minutes, none of the owners think about. Personally, I have twice seen how quickly this happens.

Therefore, I strongly recommend to all my friends and strangers car owners to install a switch "mass". First of all, for fire safety purposes, but also as an additional anti-theft tool, it will also not hurt.

To quickly install a reliable mass switch, you will need:

1. Thick copper wire with terminals
2. Automatic from 63A to 100A
3. Electrical tape
The switch

In stores, mass switches are still found in some places, but there are few really good and high-quality ones, mostly these are cheap Chinese crafts from plastic, which will inevitably melt during the passage of a powerful current.

In rural conditions, the mass switch cannot be found at all. Under Soviet rule, it could have been unscrewed from some old tractor or lawn, but now this is unrealistic.

After conducting several experiments and roughly calculating the currents and load power during the operation of a car starter, I began to apply for this purpose .... conventional 220V circuit breakers from electrical panels. The subtlety lies only in the fact that you need to find a machine at 63, 80, or 100 amperes. I tried to set the machines at 40A and 50A, but sometimes they can not withstand inrush currents and turn off. In this way, I installed mass switches on many models of machines.

Here, for example, the photo shows the installation of such a machine in an old NIVA. For clarity, the lining and sound insulation are removed.


The standard mass wire goes from the battery through the hole in the body to the machine from above, and the elongated mass wire purchased at the store is screwed into the machine from below, and the other end of this wire, with a large terminal, is screwed to the engine.Another wire from the battery, with a small terminal, is screwed to the car body.

Something like this. Simple, inexpensive and reliable.

An indispensable condition when installing the mass switch: it must be in the passenger compartment in an inconspicuous but convenient place. Installing the switch under the hood or near the battery does not make sense, because if something closes, and God forbid, it lights up, you simply will not have time to open the hood and run out.

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22 commentary
Author
Thank you for your attention to my modest work. I never thought that this modest homemade product (and not the idea, as the admin thinks) would cause so many responses and comments.
This Niva is 25 years old, and for the last 10 she has been driving with such a mass switch accidentally caught in the arm. And all my other cars also have a mass switch.
In my meadow, many different flowers grow. But for those with allergies, I always say - do not like it - do not smell! not_i
Valery,
Yeah, they also have one in the village, with one phase. yes
But you never know .... We, for example, have a production line of up to 300 tons of pulls ....
Well, where does he work, what are there such unipolar monsters "lying around"?
And mine, albeit yes-a-aleko, is not new, after disconnecting the battery, it is very difficult to "bring to life" .... If I take it off, I try to simultaneously hang a small one from the uninterruptible power supply. Otherwise, it will lose everything: both climate settings and seat memory, I’m silent about “music” - all playlist marks, default volume settings and so on will be erased ... Again you will have to reconnect it with the phone ....
... And is it worth it? ...
And EVERY circuit is separately protected by its fuse !!! (This is not Gazik). The main thing is to put such AS IT IS NECESSARY, and not as it is necessary, and if it burns out - SEARCH the reason, and not stick a bigger denomination.
Another option is possible: brought home from work ... (we don’t know about the ratings, or don’t think). Remained lying around when an electrician friend, at the request of putting him in, said: "What are you, you fool? You’ll burn the hut! Buy sixteen!" ....
The thing you need is 100% true, I'm not sure about this performance. If there is poor contact (and sooner or later), all this plastic rubble can melt and even become a source of fire, despite the absence of short circuit.

On my old GAZ-69, the mass is made in the form of a button, located under the driver's seat. In my experience, short circuit was 2 times. Once at night, I diagnosed it early because the headlights began to shine very dimly, looked at the ammeter, the arrow tumbled to -30. Quickly jumped out, clicked the button, managed to get off with a little smoke ...
Once again, it was such that under the dashboard a light formed on the wire, it is good that I saw it and managed to blow out))

And about the parasitic leak ... I don’t know how others, but it’s less morally easier to leave the car with the battery disconnected. If the car is on the street, dampness can lead to a spurious leak ... or even worse. If standing in nature, do not forget about all sorts of mice, lizards and so on, which can also nibble wiring and arrange a short circuit. The probability is small ... but our whole world is built on probabilities ... so ...
"An indispensable condition when installing the mass switch: it must be in the passenger compartment in an inconspicuous but convenient place. "
You can even turn on your foot, a convenient and inconspicuous place ... yes
"One fool will throw a stone into the water - ten smart people will not get it."
Saying, specifically I do not want to offend anyone.
But tell me ....
I can understand when something happened to the car and you fixed it with what was at hand. But then, subsequently, eliminate this malfunction in the normal way.
Here, intentionally, not in an emergency, they put this crap. What is the need for? Is it cheaper? Or does she have undeniable advantages over standard devices? At the same time, claiming that this crap would supposedly be "lying" in the trash, was it used? And to the auto store 70 km. You have seen a lot of machines at 125A in the trash, this is for three phases above the roof. And where you can use such a machine in everyday life (so that they "roll"), if you only want to "burn" your garage or house. So this machine was purchased purposefully in order to implement the idea. And there’s nothing to ride on the ears.
Quote: Valery
..And how do these bells and whistles behave if they are periodically heated, then cooled to minos ... Then again, sharply heated ... They are all in condensate ...

VA47-29, for example, has a range of operating temperatures (minus 40 ÷ +50) ° С. And about the condensate. Do you have a lot of condensation in your car in the seats, on the ceiling, in the glove compartment? We are not talking about glasses.
I agree, although modern AZs have a resource of 5-10 thousand inclusions, enough for a long time.
And I wrote it all in case someone would do it anyway, so that they would do it in the safest way.
Ivan !!! You advise "not there" !!! To begin with, using the machine as a switch and pulling it back and forth daily is not good in life ...))))
Switch - right ...
But...
..And how do these bells and whistles behave if they are periodically heated, then cooled to minos ... Then again, sharply heated ... They are all in condensate ...
Look, in such conditions, at least Legrand, even Sassin - the same ...))) NOT FOR THIS ONE !!!

But with the killing of batteries due to poor mass (a self-made switch once again turned on well) I came across this winter ...
In general, the mass switch is not needed. There are no leaks in the CORRECT machine! A FAULT needs to be repaired !!!
In general, if a person is a moron, then nothing will help !!! (But only a complete moron and an idiot will put a fuse with a stronger rating if he has a regular fuse !!!
I have one such one - considers me an enemy, and almost a sorcerer ... Because I wanted to save him from his own dibilism - but it didn’t work out !!!
... He asked me for a fuse of 30 A. I gave (a little di, the stove motor wedged in, or that I inserted the wrong cigarette into the cigarette lighter). Then comes: “Are they more powerful? And even this one burns!” I ask what chain he puts in - he does not know! They approached (He had an Audi 100, I knew this car well). Horror took me. He puts it in a chain of sensors at the checkpoint. I say, “Don’t do it, you’ll burn it up! You apparently have a steering rack, and the sensors are full of“ shit. ”It is short! There is 10A - maximum !.
...... So he generally shorted the nail!
In general, I almost shouted to him: "Don’t eat !!! Burn! !!! It’s under the bottom - you won’t immediately notice. There are thin wires and a topliprovod directly above them! Burn!"
I went ... I barely managed to jump out, although I got a little sunburn. The car burned down like a match ...

Since then I have been a terrible enemy !!!! ... For the fact that ... "S-bitch !!! This is the way to say it !!! If I didn’t speak my language, everything would be fine !!!" ....
If this crap saves someone else’s car, or God forbid someone’s life will be more than enough for me.

What does it have to do with ??? How will it save a life ??? Unless it closes the "primary" circuit - from the battery to the starter / alternator. .... And that will not help ....
And if any other shorts out, with "pieces of wire, paper clips, coins," instead of fuses, then the car will burn with a bright flame !!!
In many cases, the wiring in many places is fused and all on the "snot". What to do, the services of a good auto electrician are not cheap, they do it."

What to do??? ... HEAD TO HAVE A LITTLE !!! No need to be an auto electrician - did Ohm’s law for a section of the circuit be taught at school?
dontknow I don’t understand why this crap is “shoved” into the car at all?
What are the high merit of this VK?
Then this one is better right away, it is not afraid of temperature extremes.
I will add one more thing: the degree of protection of IP 20 circuit breakers, therefore, must also be placed in the cabin.
If the current protection function is not needed, it is preferable to use load breakers, for example, IEK-oV VN-32, due to their design (double open circuit), they practically eliminate the breakdown and arc overlap for insulation.
Installing the switch under the hood or near the battery does not make sense, because if something closes, and God forbid, it lights up, you simply will not have time to open the hood and run out.
In addition, the machines have an allowable temperature range, and inside the cabin the temperature drops are less than under the hood.
Add more. Of the cheaper ones (IEK, EKF, TDM, Dekraft), it is better to use better IEKs (unless, of course, they are fake). Even better - cheap Schneider Electric series, and if there is money, then expensive Schneider Electric, ABB, Legrand series, etc.
Further. Arcing chambers AZ are designed for alternating current, at direct current when the circuit breaks with the same current value as the alternating current, the arc is much more powerful. Therefore, the rating of the machine must be taken with bABOUTless stock than on the variable.
Where I live, you can’t run into the nearest car shop 70 km away.

dontknow You just told such a sad story, I even got a tear.
It turns out that the 125A machines are lying around, nowhere to go? The cost of which is not one hundred rubles. And how is it better than a standard VK? And how can he save someone from what? From short circuit? There is a set of fuses, put on the right current, here you have the protection.
And what does your experience driving mean? Yes, nothing.
Author
Where I live, you can’t run into the nearest car shop 70 km away.
Of course, I have the Internet, (by the way, satellite, and also homemade), of course, I can see where it costs, and even order by mail, but it will not be earlier than in 3 months.
In my opinion, the idea itself is to take something unnecessary, broken, and make something necessary and useful out of it.
Combining three purchased pieces of metal from an alibaba, or copy-paste from other sites is not my way. I come up with my own homemade products and do it myself, from what I have.
Author
Here you are, how many times in your life have you seen burning cars? Not on TV, but next? In my thirty-five years at the wheel, I've seen it four times. They even put out one themselves. And three cars burned out very quickly, and one with people inside. If this crap saves someone else’s car, or God forbid someone’s life will be more than enough for me. No wonder I tried here, typed letters, uploaded pictures. And as for driving performance or other parameters - it will not be worse from it, it has been checked more than once.
Can this ...

And you can assemble this circuit, while putting the switch in the passenger compartment.
It is more convenient in operation, and as anti-theft.

Now such thyristors, in any market for a penny.
"

And then the guy "shirt", "By virtue of their skills "the machine will get into your mind, mind you"inexpensively and reliable."

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