M818 24volt to 12volt trailer lights - Page 5 - Steel Soldiers::Military Vehicles Supersite

Civilianfarmer10 · 09-04-2009, 19:19

I don't think you can use a tranformer for dc voltages. I think a transformer is ac only

jrou111 · 09-04-2009, 19:53

Quote:

Originally Posted by Civilianfarmer10

I don't think you can use a tranformer for dc voltages. I think a transformer is ac only

Yes of course there are DC - DC transformers. They're a little different than AC - DC though.

DC to DC converter - Wikipedia, the free encyclopedia

jd-ford-hd · 09-04-2009, 21:10

Quote:

Originally Posted by 4trans

it is a 5 Circuit voltage reducer it probably would you would need something to control the electric brakes IE a brake controller if the 818 doesn't have a circuit for trailer brakes in the military style connector and that would be no big deal to wire in; you just need 12 volt in (from the reducer) and then the from the brake controller a wire in to a civi plug capable of powering electric brakes. you can ask jd ford hd if his plug for towing pintle trailers is capable of powering electric brakes.

I do not have provisions for electric brakes on this truck. Here is a picture of the only pintle trailer that I own and it has air brakes. My conversion is by far the cheapest of all mentioned here, but would not be my choice if I did need electric brakes. The relay method would be the way I would go.

4trans · 09-04-2009, 22:29

Quote:

Originally Posted by steelandcanvas

Just using a WAG, I think you are in the ballpark. The 80A version is definetly over kill. I would like to do the same thing, however, I would like a constant 12 Volts to keep my trailer batteries charged also while traveling.

i thing you can have constant 12volt if you ran constant on 24volt(hot with ignition on) to an extra circuit in the adapter then run the now constant on 12volt to the trailer or have it switched so you wouldn't waste electricity when you arent pulling a trailer. My two cents.

jwaller · 09-04-2009, 22:34

Quote:

Originally Posted by 4trans

is it any a 915 or 818 cause ive seen 915s advertised with civi and military hookups.

also does any one have an idea of how many amps total for the lighting (Stop,tail, turn,markers) that a trailer similar to jd fords uses? im thinking capital instruments might not know and then he wont know what models price to email me cause they don't post their prices

it is installed on a 932A2. it was added at the unit level. most the 915's and up have both vici and mil connectors but they are both 24V.

4trans · 09-04-2009, 22:45

Quote:

Originally Posted by jwaller

it is installed on a 932A2. it was added at the unit level. most the 915's and up have both vici and mil connectors but they are both 24V.

ok and i understand why a trans batt. wouldnt have one

4trans · 09-04-2009, 22:48

Quote:

Originally Posted by jd-ford-hd

I do not have provisions for electric brakes on this truck. Here is a picture of the only pintle trailer that I own and it has air brakes. My conversion is by far the cheapest of all mentioned here, but would not be my choice if I did need electric brakes. The relay method would be the way I would go.

Ok thanks for straightening that out the pintle trailer plugs in to the 6 way connector mounted on the fender mount. gotcha BTW i probably wont have a response from Capital till sunday evening our time or if they have off for Labor day Monday evening our time

jwaller · 09-06-2009, 20:46

I got the NSN its 5995009507685 CABLE ASSEMBLY,SPECIAL PURPOSE,ELECTRICAL,INTERVEH

4trans · 09-08-2009, 14:58

the 30 amp redarc 5 circuit unit is vrs-rev and it is 290us