This is uninspiring. It's a circuit breaker that looks and feels just like the real thing, but has no fault detecting ability at all. Why would somebody even make something like this?
These fake breakers weigh 53g (2oz) per module. Typical UK breakers weigh 100g (4oz) per module. But weight is not a guarantee of functionality.
It's made worse by the fact that there is no standard test to see if a circuit breaker is tripping at its rated current. There are specialist testers that use a low voltage transformer to test breakers, but they usually have to be removed from equipment for the test. A type C 32A breaker would also need to be tested at a minimum of 160A.
The comment about industries who might appreciate un-trippable circuit breakers breaks down as follows:-
Welders - particularly mobile welders often have an issue where the high inrush current to their equipment causes tripping of power circuits. Modern inverter welders usually contain an inrush limiting circuit to try and minimise this while also providing protection to the rectifier and capacitors.
General contractors / General builders. Some of the worst wiring I've ever seen has been done by "all-trade professionals".
Millwrights - The biggest electrical carnage I was sent to fix was caused by factory maintenance operatives who had progressively replaced all the fuses in line with a machine with wire links. The final straw was when they pushed a star-delta contactor in - bridging all three phases, and took out power for the whole factory, while explosively vaporizing many of the cables in the machine's control panel in the process. I wish there had been a camera to catch the incident happening, and then my expression when I arrived and opened up the control panel to find the charred remnants of the wiring and copper plated interior.
Unscrupulous landlords. They're a thing in the UK. Usually cramming as many tenants as possible into squalid little rooms with butchered wiring and no fire escapes. Slightly less of an issue now than it used to be.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
These fake breakers weigh 53g (2oz) per module. Typical UK breakers weigh 100g (4oz) per module. But weight is not a guarantee of functionality.
It's made worse by the fact that there is no standard test to see if a circuit breaker is tripping at its rated current. There are specialist testers that use a low voltage transformer to test breakers, but they usually have to be removed from equipment for the test. A type C 32A breaker would also need to be tested at a minimum of 160A.
The comment about industries who might appreciate un-trippable circuit breakers breaks down as follows:-
Welders - particularly mobile welders often have an issue where the high inrush current to their equipment causes tripping of power circuits. Modern inverter welders usually contain an inrush limiting circuit to try and minimise this while also providing protection to the rectifier and capacitors.
General contractors / General builders. Some of the worst wiring I've ever seen has been done by "all-trade professionals".
Millwrights - The biggest electrical carnage I was sent to fix was caused by factory maintenance operatives who had progressively replaced all the fuses in line with a machine with wire links. The final straw was when they pushed a star-delta contactor in - bridging all three phases, and took out power for the whole factory, while explosively vaporizing many of the cables in the machine's control panel in the process. I wish there had been a camera to catch the incident happening, and then my expression when I arrived and opened up the control panel to find the charred remnants of the wiring and copper plated interior.
Unscrupulous landlords. They're a thing in the UK. Usually cramming as many tenants as possible into squalid little rooms with butchered wiring and no fire escapes. Slightly less of an issue now than it used to be.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
That would really blow up in your face if opened under fault. I have a bad feeling a certain country had some problem with fake electrical parts, cracked down on it in the domestic market but do not inspect exports.
It amazes me how vile the manufacturers of these fake devices are. The overcurrent protection is not just for fun, it saves lives. These people don't give a darn, they just want to sell stuff, no matter if someone will die because of their "cost reduction".
JFC…
WOW! This is essentially murder… That is really sad and scary.
Reminds me of those warnings on electronic gear: "Do not open. No user-servicable parts inside. Shock may result." Yes, I'm shocked, and there are no parts inside to speak of…
The DZ47 you are testing is NOT a magnetic breaker .. so .. of course it's diferent inside, it's just a thermal one.
But of course .. this one is fake… not even thermal mecanism in it …
At least I don’t have to pay energy bills. If you know you know🙃💯🤣👌
The designer of this should be sent to a Xinjiang internment camp.
So it is a switch not a breaker.
But if this does not break the circuit what does then???
Basically, this is a very modern Chinese version of Zinsco/Federal Pacific breakers, which in the 1980s were known for not tripping under fault conditions
just found a "circuit breaker" for 0.27$ on aliexpress and there is a review from a guy from iran who had installed this 0.27$ mcb on his main electrical panel! i am 100% sure this 0.2$ mcb is not much different than the one in this video , the brand is CNZY .
electroboom could use one of these the next time hes screwing around shorting wall power or whatever.