seems like overkill to me, its only 1700 watts peak. Plus it says use a fuse. what are yall using? I had it for couple weeks now, dying to install it. TIA mike

 

Yup - you need 1guage - plus the fuse.

 

The fuse must be close to the batteries for best protection. If the cable should chaf, it'll heat up and could burn down the truck. Is this a company truck? Better let the shop install it.

 

ok thanks, yes its a company truck we are alowed to have them. It will never get done if I ask the shop to do it. They dont even want to do their jobs, much less something extra. they're sorry. So i'll be doing it. Plus they want you to pay them.

 

I would still let the shop do it. If anything goes wrong and you installed it.The company will nail you for it. Better to be safe than sorry.

 

YES YOU NEED THE CORRECT WIRE SIZE!

If the electrical code calls for X size, you need X. You are asking for a fire if you try and cut corners here.

Only 1700 watts is 141amps @ 12 volts or 71amps @ 24volts. That is at 100% conversion efficiency, some of the cheapie inverters are as low at 80%. Plus if you have an inverter that puts out a ugly "mayan temple" wave form versus a true sinewave the amp draw will increase with certain loads.

As you decrease voltage you need much larger wires for a given power rating.

Have your shop or a reputable shop install it.

 

Also, the longer the wire, the thicker it needs to be. Did you buy the wiring kit yet? They ain't cheap.

 

no Im gonna go to a welding shop and buy the wire buy the foot. It can be no longer than 6 feet.

 

You're gonna need more then just 1ga cable

 

The gage of the cable is determined by the length of the run X 2. This is determined by the amperage load at maximum draw. There is a rule for this but since I can't remember it....I won't try it.

If you live near a West Marine or BOAT/US store, go there and tell them you need to install an inverter...in a boat. Tell them the wattage of the inverter and the distance from the batteries to the inverter. If the inverter will be 6 feet from the batteries, then the run is 12 feet. They can sell you the correct cable. It will be marine grade and stand up to abuse. You want to use marine grade because it contains "fine" strands and will not be subject to vibration shearing. Also, use heat shrink connectors. They can sell you the heavy duty fuse/fuse link as well. Don't use just any cable....it will lead to problems later.

Or call their 800# that is on the page at this link and speak with a product advisor: http://www.westmarine.com/webapp/wcs...atalogId=10001