What is a reverse battery protection fuse?
A “Reverse Battery” fuse is usually to protect the battery charging system from reversed terminals on the battery. The charger and/or the battery can be damaged if the wires are not hooked to the proper terminal, so a fuse is added to protect it.
What is reverse polarity fuse?
Was the reverse polarity circuit that you plugged into 120 volt shore power with the hot/neutral switched? If everything is working and the battery is charging on shore power, your reverse polarity fuses aren’t blown. They are to protect the converter, etc. in case you connect the battery(s) backwards.
Can a reverse polarity fuse blow on a 12 volt car?
Which happen to be reversed from “normal” 12 volt automotive wiring. They say you learn by your mistakes, in that case I must be a genius. As others have said, a Reverse Polarity fuse should only blow if you hook up the batteries backwards.. HOWEVER,,, A dead short can do it too.
What happens when the polarity of a battery is reversed?
This is the theory: if reverse polarity occurs, the designed diode will then conduct and short the power supply in order to ground and trigger the fuse to blow up. This protects your equipment. This should work well if the equipment has been designed properly.
How big of a fuse do I need for reverse polarity inverter?
It is a feed output, so there is no danger of feedback to the Iota (unless you reverse the battery polarity). The Inverter should have a minimum 250 amp 12 volt fuse from the batteries to the Inverter. Installing an Inverter should NEVER cause a problem with the original 12 volt wiring and 12 volt appliances in an RV.
Why are diodes and fuses in reverse polarity?
It is a bit ironic because most equipment is designed with some form of reverse polarity protection. This is usually in a diode and fuse form. This is the theory: if reverse polarity occurs, the designed diode will then conduct and short the power supply in order to ground and trigger the fuse to blow up. This protects your equipment.
How many reverse polarity fuses do I Need?
I installed a new battery this spring and I keep blowing the two- 40 amp reverse polarity fuses. I’m sure that I have the cable correct to the battery.
Why did my reverse polarity fuse blow on my RV?
RV builders treat 12 volt wiring as “residential service” wiring and use the same color codes. Which happen to be reversed from “normal” 12 volt automotive wiring. They say you learn by your mistakes, in that case I must be a genius. As others have said, a Reverse Polarity fuse should only blow if you hook up the batteries backwards..
Is it possible for a battery to reverse its polarity?
The Battery is about 4 years old. The Battery reads -12.53 Volts. Based on this article, I did not have the right conditions for the battery to reverse its polarity. The battery was not completely discharged and the Battery Minder was not reverse charging.
When does a battery fuse need to blow?
The fuse should only blow when you hook the battery up back wards. If the Iota fuse is blowing for any other reason than Iota has a problem or the wrong size or type of fuse is inserted.
Do RV converters have fuses?
Consult the electrical diagram for your RV or documentation for the converter and inverter to locate fuses. You will need to evaluate each fuse separately to determine if it is blown. For RVs with inverters, these batteries also provide the necessary current to produce 110 volts AC.