power supply

  1. P

    Wiring car stereo to power supply

    Hello all, I hope I've found the right forum to post in... I am trying to put my old stereo in my new van. The one part I am a bit apprehensive about Is powering the thing up. I have two leads that I believe need power, one that says 12v ignition switched and one that says lighting or...
  2. T

    Commercial fridge Titan XTO-40-G power supply

    I'm having a hard time reaching this manufacturer for answers. Can someone help me try to use the following product? Titan open air refrigerator voltage 220 amps 8.5 hz 60 phase 1 plug type NEMA L14-20 I'm facing 2 issues, the plug type is not common, I believe it is a twist and lock type and...
  3. M

    Power supply for doors

    30 magnets (doors NC) is connected to an I/O device in a cabinet. Will a 10A power supply to the cabinet be enough, when each is drawing 95mA. Or should one get a bigger power supply to be safe?
  4. A

    LED Power Supply (Constant Current) suitable alternative help

    Hello, Can anyone offer me some help and guidance please, I'm struggling to source either the same direct replacement LED power supply or another that will work in it's place, to replace the one pictured. I need to buy three as all need replacing. Appreciated.
    • agmk00
    • Thread
    • alternative current led power power supply suitable supply
    • Replies: 3
    • Forum: Lighting Forum
  5. D

    Garage Power Supply Problem

    The power to my garage is supplied by a fused spur in the house. When switched on the fuse in the spur blows and the RCD trips! I found that a live wire had loosened and was hanging out of its connection! Could this be the cause of the problem?
  6. J

    Testing an Uninterruptible Power Supply

    Hi, I'm looking for some advice on the results I got from testing a 1000VA UPS in use in a small business. With the permission of the owner I had switched-off and disconnected the PC it was intended to protect. Firstly, it passed all tests except the differential leakage test. Is it normal for...
  7. M

    Electrician Jobs Power supply build needed.

    Hi folks. I'm learning bits and bobs here and there about the mystical +/- that's all around us, but not enough to tackle this problem. Please don't ask why, (!), but here is the project... A 128 raspberry pi cluster. The raspberry pi is one of these newish micro board pcs. The Cluster or...
  8. A

    ASHP pump compatibility with power Supply

    Hi All I’m new to the group and not actually an electrician. But please don’t hold that against me! I’m after some advice please. I’ve come to a point in my building renovation where we are about to install a heat pump. Stiebel Elton WPL 25AS the forms for the pump had been filled in and sent...
  9. D

    Diy portable power supply

    Im a joiner and as one i need powerful tools, i had a crazy idea to use my li ion batteries in series to run 240v universal motors i have tried 2 18v batteries in series so far and it works but i want to make something that is safe, im thinking running an earth cable into a plug and just using...
  10. L

    Single Phase Load Estimate to Three Phase Power Supply

    Hi Everyone I would be glad if you could clarify this for me: For a Load Estimate Survey whereby 95% is single phase, the Load Estimate is 90 KVA (Single Phase). However, the power supply is three phase 4 wire system. To calculate the current per phase, the 90 kVA is divided by three i.e. 30...
    • Locus
    • Thread
    • estimate phase power power supply single single phase supply three three phase
    • Replies: 4
    • Forum: Talk Electrician Forum
  11. J

    What is the best was to splice electrical wire to power two components? (Arcade power supply and LCD

    Hi! I m doing my first build of an arcade machine. At the back of the arcade cabinet will be an IEC socket for mains power. Inside the machine I then need to split the electrical wires so that the one socket can power both the power supply for the console board (standard jamma power supply) and...
  12. U

    One power supply 2 devices - help with switches needed please

    hi all, I'm making a hopefully simple easier pump system to do small water changes on my reef tank. I need some help please to confirm my circuitry so I know I'm using the right switches ratings etc I'm going to be using the following: 1x 12v 1amp DC power supply Connected too 1x emergency...
  13. S

    Power supply to 380V pumps from 460V panel

    Dear all, We have 460V MCC panel for existing pumps in our plant. We need to give supply to new 380V rated pumps in the same panel. There is space available in the panels(Out of 9, one panel almost free). So please suggest is it possible to make the arrangement for MCC feeders in the same...
  14. D

    Exhibitor Power supply adaptor at NEC

    Hello I will be an exhibitor at an exhibition to be held at the NEC early next year. I am going to display multiple specialist outdoor LED displays. All of my displays are wired with NZ plugs. I know that I can buy and use a UK to NZ travel adapter at any airport in the UK so there must be...
  15. S

    24volt DC power supply for defibrillator

    Hi gents, I am after a bit of advice on sourcing a 24volt 70watt DC power supply for a public accessible defibrillator. Do you think either of these would be suitable; 1) http://uk.rs-online.com/web/p/din-rail-panel-mount-power-supplies/0428445/ or 2)...
  16. M

    Power Supply to Shed

    Alright team! Can somebody please point me in the right direction? Looking to run a SWA cable to my shed from my garage in order to power 1 double socket and 2 LED lights. Shed is less than 10 meters from garage. I plan to run the SWA cable directly to the socket then from the socket to a fused...
    • mikeevans1004
    • Thread
    • power power supply shed supply supply to
    • Replies: 13
    • Forum: Talk Electrician Forum
  17. J

    Fuel pump power supply problem.

    Trying to get a 2001 Renault Clio started but the fuel pump won't run. When I turn the ignition on I can measure 12v for a second or so at the fuel pump plug. But the pump doesn't prime or do anything. I believe it should run the pump for a second or so to pressurise the the fuel rail, and...
    • Jake.
    • Thread
    • fuel pump power power supply problem pump supply
    • Replies: 6
    • Forum: Auto Electrician Forum
  18. ses

    Fire alarm power supply

    Good morning all I have a customer who after having refurbished his house was informed by the council that A cat D LD3 fire alarm system was needed Its not possible to install this without trashing his house (even with Aico wireless bases) It has been decided to fit a completely radio fire...
  19. J

    Power supply to garden workshop

    I am developing a prototype garden workshop design that has an off-grid power supply. The current setup is 300Wp PV, MPPT charge controller with 20A rated discharge current, 266Ah (C100) deep cycle battery and a 3000W (6000W peak) modified sine wave DC 12V to AC 220V inverter. This setup happily...
    • janliber
    • Thread
    • battery electrical work garden inverter kettle power power supply supply supply to workshop
    • Replies: 9
    • Forum: Solar PV Forum | Solar Panels Forum
  20. L

    Power supply

    I have a question about power supplies. we have a 3 core 1.5mm power cable going to a junction box to power and instrument ( terminals 1,2,3). We also have 2 more instruments going to this jb and want to link the supply round. is it just a case of linking terminals 1to7 for live. 2 to 8 for...
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