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Discussion Forum

140 12 Volt Conversion

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09-23-2002 21:38:04

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Can anyone advise if changes are needed to the existing fuse when converting a 140 from 6 to 12 volts?


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Doug in OR

09-24-2002 10:07:36

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 Re: 140 12 Volt Conversion in reply to MW, 09-23-2002 21:38:04  
A agree with the two people below.

In 'theory', devices draw half the current at 12 volts as they would at 6 volts - to deliver the same load. Accordingly, you would expect to need fuses of half the amperage. In reality, it just doesn't matter. As Bob said, the fuses in this application would be only to protect the wire. Anything within reason will do just fine.

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Bob M

09-24-2002 04:46:34

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 Re: 140 12 Volt Conversion in reply to MW, 09-23-2002 21:38:04  
MW and Hugh - No need to change the fuse when converting to 12 volts!

The fuse is there to open the circuit should an overload or short circuit develop, and thus prevent the wiring from catching fire. And a fuse senses only current - not voltage. Your old fuse do it's job on any voltage within reason (up to 50 volts for a glass cartridge fuse)

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Hugh MacKay

09-24-2002 01:31:30

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 Re: 140 12 Volt Conversion in reply to MW, 09-23-2002 21:38:04  
I hope not, I changed my 130 ten years ago, and never gave fuse a thought. If the same as 130 the fuse is for lights only. This is kind of interesting as there probably is some difference. I don't believe I have had 130 lights on more than 5 min. at a time since. I know I changed lights to 12 volt. Bob M will have the answer for this when he rises in morning.

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