Automatic transfer switch - CRAP! 

Have just bought and installed a similar, but better constructed one. The instruction book was in English. Works fine. Mains off and generator on and auto switch. Mains returns and generator running, returns to mains. Flip to manual and flip the motor driven switch to by-pass low voltage mains. The bridge is on the output side. No bridge on the input. Left side and right side out are common to the load.

That switch is a three phase model , I have one and it is a clever bit of gear and the switch timing has a dead bit to stop the two supplies being in contact. I am happy with it. The only time the switches can be live on both is when they are pushed manually which cannot happen.

Those are not fuses. Those are circuit breakers. Also, the voltage between two phases could be 220v (that is the case on most of the residential appliances in America).

Bull. There is absolutely no problem with using MCBs as a switch. The only problem with these things is the MCBs themselves, they are unmarked and thus should be replaced with ones that are.

You started tearing it up and made your conclusion without trying to connect and try if it works. Mine works as intended.

He calls the two circuit breakers "fuses" (fuses cannot be reset) the motor cannot get both circuits connected to the load even though his fingers can. (What kind of test is it where you tear something half apart and force it to do things that it cannot normally do?) He never heard of "switch rated breakers"? The relay is only connected to ONE supply circuit, not between. The breaker's insulation is rated at 400 Volts for 220 Volt operation. When tested in actual operation, how did it perform? That is the question! Ron W4BIN

There seems to be a lot of copies of this similar model. I've only seen the inside of one and it was a good design isolating inputs and outputs and efficiently used one relay. The mechanical linkages to the circuit breakers made it such that both could not be turned on at the same time. Unfortunage you got a bad one, but I wouldn't rule them all out, but seems like one has to get more info before just buying any one.

Just bought 2 and received them In the mail yesterday before seeing your video , my intentions are to run my rv refrigerator in camper from an inverter while traveling done the road and the other to run my backup sump pump from an inverter if the power goes out, im hoping there good enough for that!

its works, installer only the problem, if you are not satisfied, bought the white one

Seriously the mounting bracket, geez dude?

The neutral line are at that little green output line. This 3p has neutral line outside the system.

your talk is cheap. show us how many amp it can handle before calling it junk?

Did you ever install this transfer switch? What were the results?

can you recommended one switch ?

I agree with you, , after 1 month, it's break my inverter as well,

@DIY Tech & Repairs Have you found an ATS that works for the solar inverter? Has anyone?

You must have gotten a cheap knockoff version. I have the 4pole 120 Volt unit and it is not built like that. It has plainly marked Neutral legs with wires to the motor control and 3 other lugs on the breakers. A second wire on each side is connected to the input lug marked 1. Mine switches from solar powered inverter to grid power without any problems. I wired it such that if the inverter is on, that is what it uses and disconnects from the grid. When the inverter is off, it switches to grid power. As it is a 4 pole unit, it can handle 3 phase power and/or split phase wiring in the US. Just as long as the Neutral and 1 measure 120 Volts across them. And breakers are often rated as switches too. Nothing wrong there as long as the manufacturer has designed them properly. It now is in its second year of use and has not caused any problems. I have a spare one that I was going to use when the first failed, but so far it hasn't.

I bought this over a year ago. Works fine. Just bring the neutral over

So ive bought one of these and i have the sparky coming tonight to fit a few things and get it up and running. So ive just watched your video and im thinking maybe i might pass on having this installed, I do have some manual and i was wanting a auto, Dont suppose it be possible for you to recommend ATS one that doesnt cost the earth . Cheers Mark.

I cannot find an automatic switch that handles DC to DC 48 v array 100 amps I am not using an inverter, I have two 48v solar battery array, I want to use one as a back up, the only item I have hooked to it is connected directly to the MPPT charger. I would like to switch automatically one battery power bank to another when the voltage drop, the switch’s I found don’t handle 100amp input. Any suggestions how to find? I don’t want inverters at all, it would not be necessary for my application, it would only add problems. Thank you

Thank you

The middle is off, it just doesn't show the off position on your unit. Some other units shows the off in the middle.

Hello, my question is, when it is connected between Grid and Generator then Grid goes OFF, Generator will run Automatically?

I bought same what you are showing.., but my ATS is not transferring to RESERVE POWER but only transferring to NORMAL POWER., one sided functioning. What is the problem?? Is there any connection inside which is not connected or removed??, but if you manually transfer to RESERVE POWER is no problem. I think there is a connection removed inside.

Sorry it did not work out for you on this one. Have a nice day

You didn't understand how it works since you can't read the manual. But it does work, but I don't know how reliable it is.

Thanks I bought this automatic transfer switch and it WAS waiting for installation .. but you are totally right..it could not work properly.. I will not install it.. btw can you recommend any electronic automatic transfer switch ?

Thank you for this video, it saved me from buying this junk. I am looking for a three-phase changeover switch. Maybe you like to recommend one that you consider fit.

thanks saved me $40

Great job sir., If I didn't see this your video i surely waste my customers money and more over I suggest my customer a bad product. Thank you Sir😍

Neutral is N correct?

Do I understand correctly that reviewer bought the wrong configuration and then condemmned it as crap due to not being wired for the system it's not made for? So this is like the amazon review where they buy the one with the 3 foot cord and give it 1 star because they needed 6 feet? Better to look for a review for the product in it's correct application. Or am I missing something?

How do you know if you not even tested it ?? BS

I would say it is less than advisable for led panels; it will work as generator transfer. The motor relies on at least one appliace or light turned on. Crummy low tech....

Please explain how you could have 400 volts (415 uk) ? How could a generator supply mix with supply voltage? And youd be a shitty electrician to mix phases as you imply.

the way you treat I have brought up it's no good just has to be any stupid to do that maybe I'll accompany you a good money to Mayberry back advertisement but you should we tell power see if he's working on

you have to use it before , then talk

You did get a junk one but this is how they are supposed to work: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-babtv00R-Nc.html

Omg..😂