Switching on the inverter which is powering a 600W heating element means that the relay contacts will want to be rated for at least 50 amps (600W/12V = 50A). Maybe something like this Stancor: It'll handle 100A. The coil needs 3/4 amp to pull in. Next we need a clock to power the relay coil. Something like this: It'll handle up to 8A, so it'll power the relay's coil handily. I leave wiring the two bits up to others. I can say that the relay makes a mighty "clack" when it pulls in, so don't expect to be gently awakened by the gentle gurgle of the coffee maker and the aroma of fresh coffee, unless you're a heavy sleeper. -- Mike "Rocket J Squirrel" Elliott 84 Westfalia: Mellow Yellow ("The Electrical Banana") 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano Bend, OR KG6RCR
On 4/9/2009 2:09 PM John Carpenter wrote: > Still, I have Dreams...... > While Sleeping in my bus, > > That I am awoken by the > Smell of Freshly Brewed Coffee !!! > > I don't have to get up, reach up > Or in anyway > feel the chill of a cold Forest morning !!! > > My Mr. Coffee is > Powered by my Inverter > which in turn is activated > by a 12v Timer. > > I have shortened the heating element > in said Mr. Coffee. > And, although it takes a little longer to percolate > the water through the filter dish, > > It Also only takes 600 watts to operate. > Easily running on my 800 watt Inverter. > > Ahh yes, the misses does call me > Dreamin man > Sez I just don't understand > I guess that's my problem ! :o) > > PS: There also is those smaller commercial > brewers that can be found in the better hotels. > Not sure how many watts or who's they are? > Now about the 12v timer to 120v Inverter? > Any EE's out there? :o) |
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