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Unread 06-21-2016, 12:20 AM   #1
Getting Wild
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Default 30 amp 48/12 reducer question

hey guys ...I have a madjax style (mj1230c) reducer that I installed not long ago to run a led light bar with an led lit rocker switch specifically for the led light bar and I have the green switched wire ran from the reducer to the key switch so that it will only get power when the switch is in the on position and I just noticed that the reducer is warm to the touch even with the key switch turned off and with the tow/run off at the same time and the cart hasn't been ran in days . I didn't think the reducer would get power without the key switch being in the on position, I think its wired correctly because the led lit rocker switch will not power up nor will the led light work unless I have the key switch in the on position, plus I can hear the relay that is used in the wiring harness for the led light bar click when I turn the key switch on. is this normal for the reducer to still be warm ? its not very warm but you can tell its getting power as everything else on that cart is cold to the touch , I don't see much if any battery draw as I unplugged my battery maintainer and my cart is at 53.0 volts even 12 hours after I unplugged the maintainer. Any ideas ? Thanks
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Unread 06-21-2016, 06:57 AM   #2
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Default Re: 30 amp 48/12 reducer question

The Madjax converter also has a "always ON" 12v output (blue wire) used for radios or other accessories that need constant power.

As long as it is connected to the battery pack, some of the converter electronic circuits are always working.

Quote:
plus I can hear the relay that is used in the wiring harness for the led light bar click when I turn the key switch on
You should not have/need any relays that turn ON with the key switch alone when using that converter.
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Unread 06-21-2016, 12:31 PM   #3
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Smile Re: 30 amp 48/12 reducer question

Many of the less expensive reducers are designed to stay on all the time and don't use any power until there is demand even though they are 'on' all the time.
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Unread 06-21-2016, 02:55 PM   #4
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Default Re: 30 amp 48/12 reducer question

Are there any reducers out there that aren't on 'all the time'?
Interested in knowing.



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Originally Posted by theboss20 View Post
Many of the less expensive reducers are designed to stay on all the time and don't use any power until there is demand even though they are 'on' all the time.
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Unread 06-21-2016, 04:58 PM   #5
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Default Re: 30 amp 48/12 reducer question

Search for power stream 4812 reducer.
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Unread 06-21-2016, 05:21 PM   #6
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Default Re: 30 amp 48/12 reducer question

The DC converters that have a "trigger" wire and just "switched" 12v output power, when OFF, only use a very small amount of current to keep the internal filter capacitors charged.

When the "trigger" wire gets 48v, then the switched output circuit is activated and it consumes more current.
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Unread 06-21-2016, 07:35 PM   #7
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Default Re: 30 amp 48/12 reducer question

Some here are all about having a "switched" converter that you can "turn off".
Others don't care if it's switched or not because the converter doesn't even use a 1/10th of an amp when not having a current drawn upon it.

I personally fall in the latter camp. I could not care less if it's switchable. Even with the small current drawn from a radio unit when not in use, it's not enough electricity usage to be concerned about.
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Unread 06-21-2016, 08:37 PM   #8
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Default Re: 30 amp 48/12 reducer question

I think one of the reasons folks like the units with the "trigger" wire is the convenience of turning all of the accessories OFF using the key switch (without adding an additional relay).
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Unread 06-21-2016, 11:34 PM   #9
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Default Re: 30 amp 48/12 reducer question

Quote:
Originally Posted by Sergio View Post
The Madjax converter also has a "always ON" 12v output (blue wire) used for radios or other accessories that need constant power.

As long as it is connected to the battery pack, some of the converter electronic circuits are always working.



You should not have/need any relays that turn ON with the key switch alone when using that converter.
thanks for all of the replies, much appreciated , I was unaware that the reducer would still be on with the switch turned off, now I understand that the switch wire just kills the 12v power source to the accessories, as always thanks so much for straightening me out on that ...Sergio, I caught my mistake when I read your reply above. I meant to say that I hear the relay click when I flip the rocker switch to the on position to power the led light, not when I turn the key switch on , only when I flip the rocker switch on to power the led light do I hear the relay click , the led light itself has a wiring harness that includes a relay and the rocker switch. Let me know if that sounds correct .Thanks to everyone again ...I thought I had somehow wired this thing wrong when I realized the reducer was warm. if not for BGW I would have probably loaded it up and took it to a cart shop that don't know half of what you guys know I tell everyone I know that has a cart to check out BGW.
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