looking for a 24V 30+ amp power supply - Page 1
Forum section: electronics / general

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 02:15:10 pm
content: Hello people. At work we are fixing up a test rig and need to run some fans and stuff. We are after a power supply that does 24V and will run 30A continuous with peaks of 35-40A. Any suggestions ? Farnells website is pretty shit as they mark supplies up as 40A that actually only do 5 with 40 at a peak.....

author: grumpydoc
author_rank: Super Contributor
timestamp: August 14, 2012, 02:37:40 pm
content: Must be something, I suppose.Does it have to be one PSU?

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 02:39:33 pm
content: I think so, we have found one on farnell that does 36A but costs 310 quid. Very different from tghe one listed at 40A for 121 that turned out to be a 20A, stupid lazy farnell, you always have to do their home work for them.....

author: Bloch
author_rank: Unknown
timestamp: August 14, 2012, 02:41:20 pm
content: Quote from: Simon on August 14, 2012, 02:15:10 pmI would use 2http://www.farnell.com/datasheets/1596455.pdfhttp://uk.farnell.com/abb-control/1svr427026r0000/psu-din-rail-538w-24v-20a/dp/2103843?in_merch=New%20Products&in_merch=Featured%20New%20Products&MER=i-9b10-00002068just rememberQuoteor thishttp://eshop.wieland-electric.com/product/en_*/Wieland-en/Interface+technology/Power+supplies/wipos+P3+three+phase/Switched-mode+power+supply+WIPOS+P3+24-40/81.000.6190.0;jsessionid=A6665B9F24BA595C5194C4180748F708Note it is 3 phase input.

author: IanB
author_rank: Super Contributor
timestamp: August 14, 2012, 02:41:35 pm
content: Something like this?http://www.meanwell.com/search/se-1000/default.htm

author: baljemmett
author_rank: Unknown
timestamp: August 14, 2012, 02:42:25 pm
content: Quote from: Simon on August 14, 2012, 02:15:10 pmTry searching by power rating instead; that finds plenty, such asthis one good to 40A (or 30A off single-phase).

author: firewalker
author_rank: Super Contributor
timestamp: August 14, 2012, 02:44:21 pm
content: I an guessing, two car batteries and a charger would be cheaper.Alexander.

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 02:47:47 pm
content: Quote from: baljemmett on August 14, 2012, 02:42:25 pmYea showed him that, he didn't like it.

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 02:48:31 pm
content: Quote from: firewalker on August 14, 2012, 02:44:21 pmDon't ask, it's work..... actually I'll suggest it maybe just to confuse them more.

author: Bloch
author_rank: Unknown
timestamp: August 14, 2012, 02:50:38 pm
content: Quote from: firewalker on August 14, 2012, 02:44:21 pmMaybe but it will not be a constant voltage (24 to 30 Volts).

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 02:51:30 pm
content: I think he is after 28V as military spec states voltages of up to 28V

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 03:02:41 pm
content: Quote from: IanB on August 14, 2012, 02:41:35 pmperfect but need 28V, found that one on mouser in the UK for under £200. Tried searching for similar but would not turn even that one up..... is mousers search functions any good ?

author: Bloch
author_rank: Unknown
timestamp: August 14, 2012, 03:04:04 pm
content: Quote from: Simon on August 14, 2012, 02:51:30 pmThen there is ABB CP-Ehttp://uk.farnell.com/abb-control/1svr427036r0000/psu-din-rail-480w-24v-20a/dp/2103858?Ntt=1SVR427036R0000it is >> Adjustment range of the output voltage 22.5-28.5 V DC

author: Bloch
author_rank: Unknown
timestamp: August 14, 2012, 03:09:18 pm
content: Is it the price that to high ? then why are you looking at farnell page ?They are using "list" prices ..... it is a product ( Power supply) there are very high advances at

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 03:12:09 pm
content: Quote from: Bloch on August 14, 2012, 03:09:18 pmAnything was better than someones stupid suggestion of Maplin !!!!

author: IanB
author_rank: Super Contributor
timestamp: August 14, 2012, 03:13:58 pm
content: Quote from: Simon on August 14, 2012, 03:02:41 pmThe output voltage is adjustable to 27+ V. Not close enough?

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 03:17:59 pm
content: Quote from: IanB on August 14, 2012, 03:13:58 pmWell they guys happy and it's not my money so I won't complain. Tweaking anything is not a concept around here.

author: Simon
author_rank: Unknown
timestamp: August 14, 2012, 03:18:29 pm
content: considering they started out looking for an inverter.............

author: M. András
author_rank: Super Contributor
timestamp: August 14, 2012, 05:43:43 pm
content: http://www.skyrc.com/index.php?route=product/product&path=40&product_id=128http://www.hobbyking.com/hobbyking/store/__22821__Turnigy_1200W_200_240V_Power_Supply_24VDC_50amp_.htmljust a few with your criterium

author: SeanB
author_rank: Super Contributor
timestamp: August 14, 2012, 06:04:21 pm
content: Look at PLC power supplies, they often are pretty high power at 24V.

author: vk6zgo
author_rank: Super Contributor
timestamp: August 15, 2012, 06:28:03 am
content: Meanwell used to make a 27v one,but they seem to have disappeared.I would definitely recommend you investigate them further,though.If I remember correctly,we got the 24V ones up to 28V,but we really needed 30 or more at 65 amps.Remember,you can parallel the Meanwells for whatever current you need---that's what we did.They didn't quite do what we wanted,but came close.(After the Chinese OEM power supply went up in smoke!)

author: G7PSK
author_rank: Super Contributor
timestamp: August 15, 2012, 06:53:53 am
content: If you need 28 volts and it does not need to be adjustable why not make it.

author: Simon
author_rank: Unknown
timestamp: August 15, 2012, 11:42:17 am
content: Quote from: G7PSK on August 15, 2012, 06:53:53 amBecause we are a country full of silly regulations and I will spend more time on it than they can buy one for.

author: Galenbo
author_rank: Super Contributor
timestamp: August 15, 2012, 01:04:33 pm
content: Does it have to be stabilised?24V Forklift chargers exist in all tastes.

author: Bloch
author_rank: Unknown
timestamp: August 15, 2012, 01:08:06 pm
content: Quote from: G7PSK on August 15, 2012, 06:53:53 amThe are many PS that can give 28V.One example is the ABB one i did link to. There is a master and up to 2 or 3 slaves. No problem at all beside they are not cheap. But works out off the box.In a company you often want a working product now that you know works 100% ok from the start.

author: Simon
author_rank: Unknown
timestamp: August 15, 2012, 02:00:11 pm
content: Quote from: Galenbo on August 15, 2012, 01:04:33 pmWell reasonably

author: digsys
author_rank: Unknown
timestamp: August 15, 2012, 02:16:36 pm
content: I've bought several of these - HANSON HCS Series. The HCS 3602 is 1-32V 31A (actual) fully adjustable and Current limitedusers.tpg.com.au/users/p8king/sps8041.htmWell made and work well.