Relay??? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 2 Old 10-01-2006, 06:51 AM Thread Starter
Join Date: Mar 2006
Location: Maryville, TN
Posts: 219
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Can someone tell me what relay I need to install on my bike to power my fuse block when the key is turned on? Thanks.

'05 Blue V-Strom 650
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post #2 of 2 Old 10-01-2006, 08:35 AM
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Join Date: May 2006
Location: Nashville, TN
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I can't tell you a specific model, but it's going to have to be pretty big. Add up the current draw of all the devices connected to the fuse block and that will tell you what the contact rating needs to be though. My Blue Sea block is rated at 100 amps total for all branch circuits, so in that case the relay's contact rating needs to exceed that. Most common 12v relays have a contact rating of around 30 amps or so and they won't be large enough. I'm just going to wire the fuse block straight to the battery, and anything that needs to be switched will be switched individually.

If you go to Google and search for "relay 100 amps 12 volts" you'll get a bunch of hits of places that sell them.

BTW, to answer your question of last week, the Stebel horn draws 18 amps so anything larger than #16 wire (rated at 18 amps) would be suitable for them. I'll probably go with #14 on mine which is rated at 25 amps. Here's A Link to a wire ampacity table.

Scott Craig - Nashville, TN
Red '06 Suzuki DL650 - Red '07 Honda VFR800 - My Bike Page
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