P1000 I screwed up.

[Neohio]

Hi all. I did the same thing last night. Replaced my battery with Motobat and thought I had the polarity correct until I installed it, the whole laying it on its side messed me up. Dead SxS and 50 amp fuse blown. I ‘think’ I found a replacement from O’Reilly’s. Its a Littelfuse part number is MID50. I’m picking a couple up tonight. Has anyone used these fuses and do they fit? I’m hoping the fuse is the only thing I blew.

This happened to a member recently at Takeover. I believe this is a Honda only part? Might be able to get one from a Honda car dealer.

 

[Admin]

 

[Glank]

This is what Oriellys had 50 amp 32 volt my only concern is the element doesn’t look the same The bottom one is the original

 

[Neohio]

This is what Oriellys had 50 amp 32 volt my only concern is the element doesn’t look the same The bottom one is the original View attachment 393778

It it rated for up to 32v? Or rated 50a at 32v?
I believe amperage increases with lower voltages. So it may be 70 or more amps at 12v. If it bolts in, it should get you running. I would still add a factory one to your next parts order though.

 

[Glank]

It it rated for up to 32v? Or rated 50a at 32v?
I believe amperage increases with lower voltages. So it may be 70 or more amps at 12v. If it bolts in, it should get you running. I would still add a factory one to your next parts order though.

Installed the fuse and with the new battery it fires right up. Haven’t driven it yet since it’s late. Good idea getting an extra one, for the glove box, one for the tool box under the seat, and one for the cabinet to replace the one in the tool box or glove box if I have to use one of those.

 

[bumperm]

It it rated for up to 32v? Or rated 50a at 32v?
I believe amperage increases with lower voltages. So it may be 70 or more amps at 12v. If it bolts in, it should get you running. I would still add a factory one to your next parts order though.

That's not exactly a factor. The fuse's resistive element "blows" or opens based on the current passing through it. As long as the voltage rating is as high or higher than the circuit voltage, the fuse will function as intended. It is the resistance of the fuse and the current flowing through it that causes heat (power dissipated) to build up and eventually melt or blow the fuse element. Formula P=I squared x R applies. Bottom line, if it'll physically fit, a 32 volt rated 20 amp fuse will work just fine in a 12 volt 20 amp rated circuit, though not the other way around as the voltage rating has to do with arcing when the fuse is opening etc.