voltage reducer common ground?

thetoddjohnson · 07-29-2016, 06:27 PM

Hi,

I've got 2 voltage reducers that I purchased from different BGW sponsors.

One of them has 5 wires: 48+, 48-, 12+, 12-, and keyswitch.

One of them as only 4 wires because the 48V and 12V circuits share a common ground.

What are the pros/cons of each setup?

TJ

scottyb · 07-29-2016, 07:03 PM

As far as I know they all use the common negative for 12v and 48v

07-29-2016, 07:31 PM

unless they have a 48v pos and neg in put and a 12v pos and neg out put

scottyb · 07-29-2016, 07:32 PM

Uhm, yeah

mrgolf · 07-29-2016, 09:52 PM

Sergio would know for sure, I think that is likely set up to give you an isolated 12 volt power source. Useful for radios etc.

07-30-2016, 06:45 AM

Quote:

Originally Posted by thetoddjohnson

Hi,

I've got 2 voltage reducers that I purchased from different BGW sponsors.

One of them has 5 wires: 48+, 48-, 12+, 12-, and keyswitch.

One of them as only 4 wires because the 48V and 12V circuits share a common ground.

What are the pros/cons of each setup?

TJ

they are no pros or cons they both work to reduce your 48v to 12 v .. 4 wire can be wired to key also

Volt_Ampere · 07-30-2016, 08:37 AM

Almost all reducers have common ground between the high and low voltage side even if they have separate wires. I bet if you measure between the two negative wires that they are internally connected. You need to look for an "Isolated" reducer which they do make if you want to isolate the grounds.

07-29-2016, 06:27 PM	#1
thetoddjohnson Gone Wild Join Date: Jun 2013 Location: Seattle Posts: 522	voltage reducer common ground? Hi, I've got 2 voltage reducers that I purchased from different BGW sponsors. One of them has 5 wires: 48+, 48-, 12+, 12-, and keyswitch. One of them as only 4 wires because the 48V and 12V circuits share a common ground. What are the pros/cons of each setup? TJ

07-29-2016, 07:03 PM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,410	Re: voltage reducer common ground? As far as I know they all use the common negative for 12v and 48v

07-29-2016, 07:31 PM	#3
crash test dummy Guest Posts: n/a	Re: voltage reducer common ground? unless they have a 48v pos and neg in put and a 12v pos and neg out put
crash test dummy Guest Posts: n/a

07-29-2016, 07:32 PM	#4
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,410	Re: voltage reducer common ground? Uhm, yeah

07-29-2016, 09:52 PM	#5
mrgolf Old Sky Soldier Join Date: Dec 2011 Location: Kentucky Posts: 3,881	Re: voltage reducer common ground? Sergio would know for sure, I think that is likely set up to give you an isolated 12 volt power source. Useful for radios etc.

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07-30-2016, 08:37 AM	#7
Volt_Ampere Gone Wild Join Date: May 2012 Location: Rio Verde, Az Posts: 7,173	Re: voltage reducer common ground? Almost all reducers have common ground between the high and low voltage side even if they have separate wires. I bet if you measure between the two negative wires that they are internally connected. You need to look for an "Isolated" reducer which they do make if you want to isolate the grounds.

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