June 25, 2018, 08:49:46 AM

Author Topic: Delco 50DN output  (Read 2182 times)

Offline Bob & Tracey

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Delco 50DN output
« on: January 18, 2013, 10:55:19 AM »
I understand this alternator is rated to put out 300 amps but what is the highest output under normal operating conditions?

Thanks,
Bob
Bob & Tracey Rice    Full timing until it is no longer fun.

1956 GMC PD4104

Offline TomC

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Re: Delco 50DN output
« Reply #1 on: January 18, 2013, 11:44:29 AM »
12v version is rated at 300amps at 14v. It will only put out what is needed. The big alternator was used to power the two 1hp blowers for over the road A/C. On my bus, when the batteries get up fully charged, my alternator light comes on indicating a no charge situation. Hence, I simply run down the road with my headlights on all the time.
Wiring should be heavy enough to accommodate 300amps after startup. Good Luck, TomC
Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.

Offline ol713

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    • ol713
Re: Delco 50DN output
« Reply #2 on: January 18, 2013, 11:58:54 AM »

   Hi;
     The 24v version on my MCI is rated at 225 amps.
     What you have is a lot more amps than most folks
     can use.
                            Good luck,  Merle.

Offline gus

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Re: Delco 50DN output
« Reply #3 on: January 18, 2013, 02:55:51 PM »
Tom,

When your batts are fully charged and there is no alt output why do you turn on the headlights? 

This almost never happens to me because I connect the house batts to the bus alt for charging.

Also, I have my VR set to 13.75 amps as per the manual.
PD4107-152
PD4104-1274
Ash Flat, AR

Offline Kwajdiver

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Re: Delco 50DN output
« Reply #4 on: January 18, 2013, 04:07:04 PM »
If the MCI is rated for 225 amps at 24vdc, is there a way to tap 12vdc off it to charge the house batteries after the starting batteries topped off?

Bill W
Auburndale, Florida
MCI-9
V-6-92 Detroit, Allison 5 spd auto
Kwajalein Atoll, RMI

Offline dickegler

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Re: Delco 50DN output
« Reply #5 on: January 18, 2013, 05:33:01 PM »
You can parallel a couple of 100 amp vanners, and get the job done. Not the cheapest way out.
  If I was doing it again, I make the house bank 24volt.

Dick
« Last Edit: January 18, 2013, 05:43:12 PM by dickegler »
dick egler  atlanta, in  92 prevost/beaver conversion, N5333L

Offline Kwajdiver

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Re: Delco 50DN output
« Reply #6 on: January 18, 2013, 05:38:59 PM »
Yes, but they cost almost $700.00 each.
Auburndale, Florida
MCI-9
V-6-92 Detroit, Allison 5 spd auto
Kwajalein Atoll, RMI

Offline hargreaves

  • 1987 MCI 102A3
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Re: Delco 50DN output
« Reply #7 on: January 18, 2013, 08:53:36 PM »
I use a 100 amp vanner. I use a high capacity constant duty solonoid in the main line to the house batteries that energizes when the engine is started.  Works well , I can run one ac while on the road without the genny starting up.  Cheers Gerry
now as of Feb 2012 series 50 B400  . Sunshine Coast British Columbia