psu

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  1. sebas96

    PSU works with a multimeter attached, but trips the safety without it.

    Hey, I want to use an old xbox 360 PSU- 12V 175W output- for my 12V sup pump (pump/air compressor). When I connected the PSU to the pump directly the SUP pump worked without a problem until it switched to the air compressor( it does it automatically after the pressure reaches 1 psi. The moment...
  2. B

    UK RCD before a 230v/24 PSU?

    Hi all I have seen a schematic drawing for a control panel recently where they (whoever drafted the drawings, designed the panel) show a RCD before the 230v/24v dc PSU, and the PSU is the only device downstream of the RCD in my mind this has no merit. The 24v secondary d.c side of the PSU...
  3. P

    Power shower isolator PSU gone kaput (I think)

    Hi, after a bit of advice. Have tried a lot of plumbing and electrical shops but no one seems able to help. I have an Isolator/PSU 230v/12v. It is in line with an isolator switch and a fused on/off switch. All linked to a power shower (gravity fed). It can run off of normal mains with a 3 amp...
  4. multimarcus

    Can I use this switch button to turn an AC/DC PSU on and off?

    I would like to control a Power supply AC/DC connected to mains with an input of 230v (2.4A/115VAC; 1.2A/230VAC) and output 5v / 40A (200Watts). Can I use a switch button rated 3 A @ 250 V AC to turn it on and off? It would be one of these or something similar.
  5. multimarcus

    5v 60A Power Supply for LED Panels — Choosing good cable size

    Hello everyone! I would like to power 8 LED RGB panels, each takes 5v input and according to the datasheet 20W. (I take every consumes about 4A x 8 approx 32A) I have a Power Supply from Meanwell. It has a single output of 5v and 60A, I could also opt for a slightly smaller one, 40A if better...
    • multimarcus
    • Thread
    • cable cable calculations cable size led panels power power supply psu size supply
    • Replies: 8
    • Forum: Lighting Forum
  6. J

    Voltage on ungrounded PC case, is it normal?

    Hello So my ungrounded PC case have some potential/voltage on it. Of course when i ground the case there's no voltage reading. But my question is -is it normal for an ungrounded PC case to have voltage? I mean PC power supply, should not pass 12V on the case, it should be isolated, right? No...
  7. S

    UK PSU Specifications

    Hi all, I need a Power Supply to run a couple of security cameras. They each came with one with these specs: SWITCHING POWER ADAPTER MODEL: DSA-15P-12 UK 120120 INPUT: 100-240V ~ 50/60Hz 0.5A OUTPUT: 12V ----- 1A https://i.ibb.co/yn8yvSz/834-CF952-AB82-4-C80-A692-B487-FD772838.jpg My...
  8. A

    Combining Two 12v DC PSU Outputs for 24v

    I have a 9 output CCTV PSU wall mounted supply. I have several spare outputs and need to run a maglock rated at 24v DC 250ma. Each output on the PSU is rated at 12v DV 2A. Can I link two outputs in series to output 24v DC?
  9. E

    Replacing a PSU / changing some loads

    Hello folks, hoping for some help on a project I'm doing at home involving my 3D Printer (...it's 2019... who doesn't have one of these things at home?!) It has a 24V 25A power supply providing the juice but it's a cheap LED driver and it's noisy - it's just the fan but as it's in the living...
  10. Mike Lee

    Type A or AC RCCD for a PC computer PSU?

    Hi, I have a small problem of a type AC Disjoncteur differential (I believe it is an RCCD in english parlance) tripping occasionally, it happens about twice a month. I believe it to be caused by my computer power supply, I have come to this assertion due to it being the only thing switched on...
  11. M

    1000w 5v psu for powering multi mini pcs?

    Hi there. I've been looking for a while for a power solution to run 128 x 6w (Initial load) mini board computers. I've looked at USB charging blocks that can provide 100w over 8 ports, that means I need 8 of them and splitting each port is a bugger for cabling. I've looked at led power...
  12. R

    Should I split PSU load?

    In my current smart home project I have a total load in the panel of around 30A. Should I just use one big PSU rated at 30A or split the load across say three 10A PSU's?
  13. G

    230v Supply to DIN RAIL PSU in 19" Rack

    Hi guys, First time posting, so please bare with and thanks in advance for any help. Working on a project (install in a couple of months) and the 'kit' I'm installing is a mix for DIN rail control equipment and AV kit. Usually no issue, AV Kit in a rack, DIN rail controllers, PSU's etc in the...
  14. S

    PC PSU and 12v LEDs

    I have been told I can power leds from my old PC PSU as a cost effective way of using my old unused computer. I need advice on what I can drive with them. I want to use 10w square LEDs which require 10-12v DC and 1050mA each. I am aware that most of the outputs are 12v from the PSU. Does this...
  15. S

    Getting the best out of a PC PSU

    Hi and happy new year. I wish to illuminate some SMD LED's using an old PC PSU. It is rated at 500w. I aim to be using CREE XML LEDS and need to have two runs. One run comprising of 8 LEDs and one with 4. Each LED has a forward voltage of 3v @ 1000mA which should deliver 3w/444 Lumens. A...
  16. P

    Mobile DVR Powered From PC PSU?

    Hi, am looking for advice on powering a mobile DVR for a car from a pc power supply, I have seen/read this being done with a car stereo. The connections I have are "9-28VDC" "engine switch" and "GND", would I be right in saying that the 9-28VDC and the engine switch will go to the 12v out let...
  17. A

    24 LEDs via PC PSU

    Hello everyone, I'm new to these forums and opened the account to ask for help (please, please, please) with my planned circuit... Power Source: Basically, I want to power an LED circuit from my PC's PSU Molar (12v red wire). The internet shows the red wire to be 12+ and the yellow 5+ - does...
    • alan_fx8150
    • Thread
    • led led's leds power psu series voltage
    • Replies: 9
    • Forum: UK Electrical Forum
  18. D

    24V RGB LED Setup - Cable & PSU Question

    Dear all, I work for an exhibition company and manage the technical side of things there. As a new feature for a booth concept we need to setup some 24V RGB LEDs to backlight some stretched fabric. The PSU that I am using is ACDC 24V 13A. The RGB controller unit that I am using allows 3x3A...
    • dancematic66
    • Thread
    • 24v cable electricians' talk led psu question rgb setup
    • Replies: 8
    • Forum: UK Electrical Forum
  19. M

    Help with PSU

    Hi , this is my first visit to the forum so apologies if i have posted this in the wrong forum. Could you please advise me re the power supply for a Belkin wireless router which recently stopped working. It was a DVE 050100 rated at 5v 1amp. It stopped powering up a couple of days ago and I have...
    • meddle
    • Thread
    • aus electricians' talk help psu
    • Replies: 10
    • Forum: Australia
  20. A

    Low volt lighting PSU and DAB interference

    Hi everyone.. Looking for some feedback with regard to low voltage lighting power supplies and problems with RFI .. I have tried various makes and models and they all seem to have the same issue. I realise that inherently switch mode psu's give off some airborne interference and my cabin like...
    • Andyroid5
    • Thread
    • aus cables dab electricians' talk interference lighting psu radio tried volt volts
    • Replies: 5
    • Forum: Australia
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