Small AC motors and Inverters
Disappointed that my ancient Mod Sine Wave inverter (140W cont, 200W surge) shuts down with a 120W coffee grinder. Works ok with the 400W (cont) MSW inverter built-into the truck, though a little ...
Forum Discussion
In addition to the whiz-bang Circuit Wizard, Blue Sea has published two charts and general info for choosing wire gauge and fuse size in DC circuits. They can be found here:
Wire Size
Fuse Size
These pages have been useful to me and seem generally inline with the advice received here.
And so, after sleeping on it, I've decided to go the simple and cheap route. It's only a coffee grinder and a 220Ah battery bank. The 1000W PSW inverter is overkill for that and only purchased because it was so cheap and readily available.
I already have 10' of 6ga wire, MRBF 60A fuses and holder, and lugs. The 60A fuse will protect the 6ga wire and should be good for ~700W before blowing, enough for the coffee grinder and other low watt stuff. It will also protect the 1000W inverter which I think BFL claims is really only good for 900W continuous. Unlike BFL, I don't intend to find out. :)
We do plan to upgrade the battery bank but that will require a new truck and/or AGMs (tongue weight issues :(), so it won't be this year. Whenever that happens we may upgrade the Inverter to something that can run the Microwave or a coffee maker. When/if that happens ALL the wiring and fusing will get bigger.
Thanks for all the good advice.
Wire Size
Fuse Size
These pages have been useful to me and seem generally inline with the advice received here.
And so, after sleeping on it, I've decided to go the simple and cheap route. It's only a coffee grinder and a 220Ah battery bank. The 1000W PSW inverter is overkill for that and only purchased because it was so cheap and readily available.
I already have 10' of 6ga wire, MRBF 60A fuses and holder, and lugs. The 60A fuse will protect the 6ga wire and should be good for ~700W before blowing, enough for the coffee grinder and other low watt stuff. It will also protect the 1000W inverter which I think BFL claims is really only good for 900W continuous. Unlike BFL, I don't intend to find out. :)
We do plan to upgrade the battery bank but that will require a new truck and/or AGMs (tongue weight issues :(), so it won't be this year. Whenever that happens we may upgrade the Inverter to something that can run the Microwave or a coffee maker. When/if that happens ALL the wiring and fusing will get bigger.
Thanks for all the good advice.
