Inside a fake un-trippable circuit breaker 3

[drawoh]

This is not an engineering Failures & Disaster, yet. I am not familiar with this YouTube channel, and of course, I am not a sparky.

Inside a fake un-trippable circuit breaker

Someone has gone to the trouble of manufacturing this thing. Are these things really out there and contaminating stock of breaker switches?

--
JHG

 

[RedSnake]

I know it's not really funny, but still I can't help laughing..
It's quite a genius way of making easy money, not many would have thought to check properly, I might have felt the weight difference, but most none electrics might not.

BR A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[FacEngrPE]

Different brand

https://www.walmart.com/ip/Unique-B...f3cfff0c50e5150243379f72caebbded&gclsrc=3p.ds

https://www.amazon.com/dz47-63/s?k=dz47-63

I do not recognize any of the brand names on the Walmart or Amazon listing.

Please note - I am not claiming these parts are counterfeit, or that they will not perform as claimed. The "Brand Name" on the counterfeit in the linked video does not appear in any of the amazon or walmart links, above. A casual examination might not discover the counterfeit.

In the Walmart and Amazon links, a few of the breakers DZ47 have a CE mark, most do not. None display a UL or CSA mark, about half carry the China Compulsory Certificate mark, commonly known as a CCC, Many have NO safety certification mark.

The counterfeit displays a CCC Mark.

The lack of third party certification would create trouble for the user if an AHJ is inspecting the installation (CCC would not count in the US, CE might get accepted).

Many electrical repairs are not subject to inspection so I can see these parts being used by the unwary.

 

[waross]

I was unable to make out enough of the writing on the device to be sure, but?
Could this be a perfectly legal three pole, Din rail mountable switch?
I have encountered molded case switches that were basically a molded case breaker without a trip unit.
Size; Three pole, 100 Amp frame.

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[RedSnake]

I would say C6 makes it a automatic fuse breaker, it would not have characteristics if not.

The chines make the CE mark different so EU can't claim it's a plagiat and a conscious fake.

CCC hm don't know how come up with that the Russians maybe ;-)

BR A


“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[waross]

Oops, over-posted.
This is definitely a fake, not a switch.

The little graphic is showing thermal trips and magnetic trips that don't exist.

Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[thebard3]

I think pennies behind the screw in fuses are more reliable more than this thing.

Brad Waybright

The more you know, the more you know you don't know.

 

[LionelHutz]

That's why you stick with brand name products from official distribution channels.

Bill, I've never seen a molded case switch that didn't have an instantaneous trip in it. There are switches that are fused or not fused where the non-fused has no trip, but those look nothing like a MCCB.

 

[BrianPetersen]

That YouTube channel is priceless!

 

[cranky108]

Actually there is a need for molded case breakers without an instantaneous trip in it.
Granted it would be where the feeder breaker is not rated for the full available fault current. But that is the purpose of a current limited main.

 

[oldfieldguy]

I've seen and personally tested ("It's a switch!" "No, it's breaker. Just test it!") molded-case switches in my previous life as a field service technician. In the case I cite, the 600-amp rated switch was marked "Molded case switch" and did not trip on a 10 kA current. 10 kA should have rung the bell for any included magnetic trip function.

old field guy

 

[TugboatEng]

When he disassembles the switch, on the sides, the moulded in markings indicate that it is a disconnect switch and not a breaker.

 

[RedSnake]

The only information molded on the sides are information about how to put it in place and which way it should be placed.
In French and English

Best Regards A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[waross]

In our world, Tug, the graphic on the front of the breaker clearly indicates a thermal trip and a magnetic trip, niether of which is present.
This line of devices badly needs a flotation test.


Bill
--------------------
Ohm's law
Not just a good idea;
It's the LAW!

 

[LionelHutz]

I only deal with UL/CSA listed products and all molded case switches and molded case circuit breakers must have instantaneous trip elements that can't be disabled.

 

[IRstuff]

There are dishonest people everywhere; this is slightly below the line of the guys that substituted melamine for powdered baby formula a while back. Kids died, and the perpetrator was executed after a speedy trial (only in China).

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[TugboatEng]

Good freeze frame. I thought the lines and dots indicates contacts in the moment they were visible to me.

 

[Compositepro]

Tug, you are apparently unaware of the ability to view paused YouTube videos frame-by-frame by using the period and comma keys. I learned that on Eng-Tips.

 

[monkeydog]

Ahh Coma-Period that is cool.
I will have to use that for the next Space-X failure.

 

[Sparweb]

Several years ago I spec'd some circuit breakers for an aircraft in an application where they were supposed to fail (as an indication that a fault current had been applied to a circuit during a test). The breakers I specified were the Sensata/Klixon variety that any aviation sparky knows and trusts. Then we had trouble with the test because the breakers didn't trip at the right time. Much troubleshooting of the equipment under test followed, with no problems found. Repeated the test, no trip. Circuit breakers removed and bench tested. These 20Amp breakers didn't trip at 40A, 50A. Left on 50A for while... no trip.

They were returned to the manufacturer, so we never tried to crack them open and see if there was any trickery inside! That never would have occurred to me. Now I have to wonder...

Please remember: we're not all rednecks!

http://www.sparweb.ca