Fuse Blocks

[LouisC]

As I stated a few times in previous posts, I'm a dummy when it comes to electronics. I'm thinking of adding a fuse block. (Here's where I have no clue). In previous posts I said I was going to add back-up LED lights off of the reverse buzzer. So I was thinking of adding a 10 space fuse block between my volt-2000 reducer and 12v power to the relay (I was told acts like a switch) then to the rear lights. I have 5 wires on the reducer - yellow to switch, 48v + and 48v -, 12v + and 12v -..... The 12v + would go to the fuse block main post. What do I do with the negative 12v wire ??? Then coming off one of the 10amp fuse spaces a 16awg wire would go to my relay then coming out of my relay another 16awg wire go to the positive of my lights....What do I do with the negative wire from my lights ??? Told - not a good idea to ground to frame so I'm a little lost...HELP

[Rooster59]

It seems to me that if you shouldn't ground to the frame then all the lights' negative wires must be wired back to the 12v negative wire from the reducer.

Don't take my word for it. Never owned an electric cart.

[LouisC]

Originally Posted by Rooster59

It seems to me that if you shouldn't ground to the frame then all the lights' negative wires must be wired back to the 12v negative wire from the reducer.

Don't take my word for it. Never owned an electric cart.

Right now the LED Headlights and Tail Lights are hooked up to a harness which is somehow hooked up to the 12v + & - of the reducer. This will change as well and come off the fuse block -- I Think ????

[Rooster59]

The 12v positive wire from the reducer would be the wire you use to feed 12v power to the fuse block. Get a fuse block that uses one stud for the fuse block feed.

Something like this.....

OLS 6-Way Blade Fuse Box [LED Indicator for Blown Fuse] [Protection Cover] [100 Amp] - Fuse Block for Automotive https://www.amazon.com/dp/B00QMTAZ1W..._eczFAbHCQK59A

[handtools]

You need a fuse panel and a grounding strip, then all your 12v accessories can be wired to them.


Like this kit: www.cartsunlimited.net/12v-reducers.html

[yawood]

Your fuse block will have a negative side where all the negatives from each accessory come together and the positive side where each positive is fused before going off their respective accessory. From the 48V to 12V reducer, the +12V will go to the main +ve terminal on the fuse block and the -12V will go to the main -ve terminal of the fuse block.

This diagram shows what I mean:

[yawood]

You probably don't need a relay on the twelve volt side unless you've got an accessory (such as a big light) that pulls more power than the switch you are using can handle. Given that the reducer can only output 30A and you can easily find a switch that will handle that, you don't need a relay.

[Sergio]

The relay he is referring to is a 48v relay in parallel with the reverse buzzer.

The +12v is only going to the relay N.O. contacts to switch the 12v backup lights.

[LouisC]

Bought a Blue Sea 5025 - 6 circuit with negative ground bar & cover...I believe it will work just fine...Thanks for the guidance...

[ThreeCW]

LouisC,

1) You are correct that the golf cart frame should NEVER be grounded but it is important to understand “why” this should never be done. This is due to the higher amperages and voltages used on electric carts presenting a safety risk … and to reduce this risk, a grounded frame is NOT used. Thus, a ground wire must be run to each electrical device.

2) The Volt-2000 48-12v Reducer (20 amp) that you are using should be installed with an in-line fuse on the 48 volt POSITIVE wire into the reducer. I looked up this reducer online and it appears that it comes from the factory with this in-line fuse included. If your reducer did NOT come with this fuse, you should add one. Find attached a photo of what I think you have and a wiring diagram on how it should be installed in your cart. The wiring diagram can be found online in case you did not receive one with your reducer.

3) Blue Sea makes good equipment and I expect that your Blue Sea Fuse Block is no exception. Find attached a wiring diagram for your fuse block … I expect that it will be included with fuse block when you receive it. Your fuse block includes a NEGATIVE bus bar that you can use to connect the NEGATIVE wires to your electrical devices.

With the attached diagrams and the one provided by Yawood , you should have pretty much all you need for your wiring. Good luck on your project.