StingGrayRhino
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So this 240 Amp alternator has 4 switches. To my understanding there are 2 X 45Amp and there are 2 X 15. That only adds to 120Amp.
Wheres the other 120?
Wheres the other 120?
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vavaroutsos
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The aux switches have nothing to do with the alternator. They are on the dash and control relays that you can wire to lights. etc. The amperage ratings you mention are those of the four relay circuits controlled by the switches.
krucam
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240 Amps (@ 12V) is available for the truck by the Alternator. 'IF' you used all 4 switches to rated capacity, yes 120 Amps are spoken for. The remaining current has to be used for fire the engine, charge batteries, head lights, stereo, and most importantly, seat warmers...
Rumblefish
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Also the larger alternator is to push more power to the trailer via the 7 pin connector.
RocketScientist
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"Rated" does not mean used. Same with the AUX switches - "rated" at 40 Amps/15 amps
Like your house, you have 15, 20, 30, 40 amp circuits. Your panel is usually 100, 150, 200 amps. You may have circuits that add up to 3 or 400 amps on a 200 amp panel. The breakers on those circuits like the fuses on the Jeep are there for protection. They don't reflect the current draw. Most devices have a startup draw, and a steady-state draw. Like an AC unit, on startup will draw more current than when running in steady state. Why does this work? Uh... not everything is running or starting all the time... And in the odd event it were, circuits are rated accordingly.
Add up all the fuses in the JL. Bet it is way more than 240 amps.
Like your house, you have 15, 20, 30, 40 amp circuits. Your panel is usually 100, 150, 200 amps. You may have circuits that add up to 3 or 400 amps on a 200 amp panel. The breakers on those circuits like the fuses on the Jeep are there for protection. They don't reflect the current draw. Most devices have a startup draw, and a steady-state draw. Like an AC unit, on startup will draw more current than when running in steady state. Why does this work? Uh... not everything is running or starting all the time... And in the odd event it were, circuits are rated accordingly.
Add up all the fuses in the JL. Bet it is way more than 240 amps.
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