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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 05-16-2018, 10:27 PM   #1
Goliath
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Default Key switch fuse size/type

So, Alltrax recommends a 60v (no specified current) fuse for the KSI circuit just before the key switch.

There was no fuse in the cart before I gutted the harnesses.

I'm using an MZJ-400 solenoid, and SW202 contactor.
Calculating load values from each datasheet, the solenoid should draw about 1/4 amp, and the SW202 about .9 amps, if I'm figuring correctly.

What's the typical fuse size and holder type used for this application?
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Old 05-17-2018, 12:05 PM   #2
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Default Re: Key switch fuse size/type

BTW, ATO and ATC fuses do have higher voltages available, but actually finding someone to sell them is near impossible, so I'd rather not go that way (blade).
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Old 05-17-2018, 03:12 PM   #3
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Default Re: Key switch fuse size/type

Don't worry too much about the voltage for your application.

The "galvanic isolation voltage" rating on a fuse has to do mostly with medical equipment or any other system where a human could get hurt if the voltage could "arc" across the open fuse gap.
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Old 05-17-2018, 03:34 PM   #4
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Default Re: Key switch fuse size/type

Thank you.
I'm not sure what size they normally use for this circuit, but I'm thinking a 3 or 5 amp would be sufficient.

Do you recommend anything different?
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Old 05-17-2018, 03:54 PM   #5
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Default Re: Key switch fuse size/type

If the wire is 18ga use a 5 amp fuse.

If the key switch wire is 16ga or more I would use a 10 amp fuse.
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Old 05-17-2018, 05:20 PM   #6
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Default Re: Key switch fuse size/type

Haven't wired it yet, and was going to use 16, so thanks again.
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