Hello there

I am building an LED light box .
The voltage input is 230Vac - The expected current is 7AC
I am using MeanWell power supply 230vAC 350w
I am wondering if I should make any connection between GND to Earth .

I would appreciate an advice or an explanation

kind regards
Nissim

 

If this is just some hobbyist project. I would say no

 

If any part of the externals can conduct they should be connected to earth ground for safety.

 

Hello there

I am building an LED light box .
The voltage input is 230Vac - The expected current is 7AC
I am using MeanWell power supply 230vAC 350w
I am wondering if I should make any connection between GND to Earth .

I would appreciate an advice or an explanation

kind regards
Nissim

your supply will be 'earthed' via the supply bonding conductor. Any greater metallic envelope should also be bonded to earth, or ground. The output of the supply is floating in respect to ground unless you tie to it, and there is no particular reason for doing that. On the contrary, the ground becomes more usefull as a shielding drain, which wouldn't be of concern in your project.

 

Thank you very much for your reply.

With respect to your comment "The output of the supply is floating in respect to ground unless you tie to it"
I am wondering if for some reason the GND became 'noisy' , a connection ( short or via a resistor ) would drain it to Earth .

Thank you in advance for your explanation