Hi All,
The input side of the LED Driver has Live and Neutral.
Will it cause damage if I connect it reverse ?

Thanks in advance.

 

Hi All,
The input side of the LED Driver has Live and Neutral.
Will it cause damage if I connect it reverse ?

Thanks in advance.

The quick answer is "no". The long answer is, if it is not galvanically isolated, that is, if the output is not isolated form the input, it can become dangerous because parts that might come in contact with people could be live.

If it is a "capacitive dropper" type supply, you shouldn't even use it, and if you do, you should certainly observe the live and neutral distinction.

 

Hi Yaakov,
Thanks.
In the PVC wire connector, from the AC input side, there are 2 black wires connected to 1 terminal and 1 brown wire connected to other terminal. It should be safe to assume that the 2 black wires are neutral and brown wire is live. This is the work of a lazy electrician who daisy chained the neutral ? I don't have test pen and misplaced my Greenlee non-contact voltage detector.

 

Hi Yaakov,
Thanks.
In the PVC wire connector, from the AC input side, there are 2 black wires connected to 1 terminal and 1 brown wire connected to other terminal. It should be safe to assume that the 2 black wires are neutral and brown wire is live. This is the work of a lazy electrician who daisy chained the neutral ? I don't have test pen and misplaced my Greenlee non-contact voltage detector.

I really don't think it is safe to assume anything. Black should be live for mains wiring in the US, but really without testing or a schematic, it's a toss up for me. Someone else might know more.

 

Thanks. Not a safe way to find hot terminal.
I will get test pen or a non-contact voltage detector just to be sure.

 

thread reopened.

 

Have you got a link to the unit?

 

thread reopened.

For a moment I thought I might have posted something that may cause liability to this forum.

 

Have you got a link to the unit?

The LED lamp driver is faulty. I have since figure out the live and neutral and fixed the replacement LED lamp.
Thanks.

 

For a moment I thought I might have posted something that may cause liability to this forum.

There is a real concern about certain sorts of circuits commonly used to power LEDs from the mains.

Dick properly erred on the side of caution, but we spoke and he decided this was not the same case as the ones we are concerned about.

Have you had any success?

 

There is a real concern about certain sorts of circuits commonly used to power LEDs from the mains.

Dick properly erred on the side of caution, but we spoke and he decided this was not the same case as the ones we are concerned about.

Have you had any success?

I brought the old LED to the shop and it was determined that LED driver is spoilt. Replaced with a new LED and all is good.
Thanks.