HVACR Posted November 7, 2016 Share Posted November 7, 2016 I need some help with ID of some power terminals. This is the link to the item: https://www.aliexpress.com/item/5V-400W-rain-proof-switch-mode-Power-Supply-AC120V-or-AC230V-input-DC5V-output/1750596067.html The top 3 are POS, POS, POS, The next 3 are NEG, NEG, NEG What are the next 3 terminals? Guessing the black on the neutral. Can't read Chinese. Any help is great. Thanks HVACR. Link to comment Share on other sites More sharing options...
k6ccc Posted November 7, 2016 Share Posted November 7, 2016 I cant read it easier, but presumably, hot, neutral, and ground. Can't tell what order, but I am guessing the one next to the negative is ground, and the other two are power and neutral (your guess on the order). Link to comment Share on other sites More sharing options...
Need more lights Posted November 7, 2016 Share Posted November 7, 2016 Thats a 220 volt supply....so the bottom 2 reds are 110 + and the 3rd one up (black) would be neutral...That would be my guess, but I'd take a ohm/continuity meter to it anyway. Link to comment Share on other sites More sharing options...
default Posted November 7, 2016 Share Posted November 7, 2016 Just a real quick search on Bing brought me to this page for an S-400-12 Power Supply I don't know if it's the same terminals layout as it may not be the same mfg. http://www.12voltpowersupplies.us/ Alan... Link to comment Share on other sites More sharing options...
George Simmons Posted November 8, 2016 Share Posted November 8, 2016 (edited) I think best practices, not to mention common sense, dictates that you should not purchase a PS that you aren't CERTAIN of where to connect what. There's way too many other power supplies from which to choose, and the difference in price is less than replacing a string of nodes or pixels. Edited November 8, 2016 by George Simmons 1 Link to comment Share on other sites More sharing options...
sticks4legs Posted November 8, 2016 Share Posted November 8, 2016 Ask Ray, he always responds to emails. Link to comment Share on other sites More sharing options...
EmmienLightFan Posted November 10, 2016 Share Posted November 10, 2016 (edited) On 11/7/2016 at 11:34 PM, Need more lights said: Thats a 220 volt supply....so the bottom 2 reds are 110 + and the 3rd one up (black) would be neutral...That would be my guess, but I'd take a ohm/continuity meter to it anyway. It is an auto switching supply. Normal 220v power supplies only have one live, one neutral and one earth. And our mains 230 volts is different to yours. Yours is two legs of 110v, ours is just straight 230VAC. The connections are the same whether you use 220v or 110v. I have the 5v version of that device, and can confirm that my one is the same as the Meanwell pictured above. Edited November 10, 2016 by EmmienLightFan Link to comment Share on other sites More sharing options...
Trickyd Posted November 11, 2016 Share Posted November 11, 2016 Hello lightfans Especially with powersupplies of that much power do not use them if you are not sure how to! The risk of this much power available is to big to mess with. The current that this type op power supply can deliver could cause fire in an instant. Safety should always be your first concern! Even with 12 Volt. Just some thoughts from The Netherlands Dick de Wit Link to comment Share on other sites More sharing options...
EmmienLightFan Posted November 11, 2016 Share Posted November 11, 2016 12 hours ago, Trickyd said: Hello lightfans Especially with powersupplies of that much power do not use them if you are not sure how to! The risk of this much power available is to big to mess with. The current that this type op power supply can deliver could cause fire in an instant. Safety should always be your first concern! Even with 12 Volt. Just some thoughts from The Netherlands Dick de Wit If used incorrectly, any power supply could cause a fire. The voltage is low enough not to pass through skin, which has a high resistance. It takes about 60v to even feel a tingle on your hands. The part most likely to cause a fatality or fire is the mains input. I am very careful with 230 volts. It is surprising how touch the cheap power supplies are though. I have had one's output wires sitting in water, moving all the copper and plating one wire. It was like that for about a month. I have accidentally shorted them with stray bits of copper finding their way to the next terminal, but all that happened was the tiny bits of copper turned red hot and fell off. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now