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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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05-16-2018, 10:27 PM | #1 |
Gone Wild
Join Date: Jun 2017
Location: San Diego
Posts: 189
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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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05-17-2018, 12:05 PM | #2 |
Gone Wild
Join Date: Jun 2017
Location: San Diego
Posts: 189
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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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05-17-2018, 03:12 PM | #3 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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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. |
05-17-2018, 03:34 PM | #4 |
Gone Wild
Join Date: Jun 2017
Location: San Diego
Posts: 189
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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? |
05-17-2018, 03:54 PM | #5 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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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. |
05-17-2018, 05:20 PM | #6 |
Gone Wild
Join Date: Jun 2017
Location: San Diego
Posts: 189
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Re: Key switch fuse size/type
Haven't wired it yet, and was going to use 16, so thanks again.
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