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esc amp ratings? 60a/120a/150a/etc

esc amp ratings? 60a/120a/150a/etc

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Old 07-30-2012, 02:17 PM
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Default esc amp ratings? 60a/120a/150a/etc

can anybody explain to me what these ratings mean?
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Old 07-30-2012, 02:25 PM
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Essentially they are measurements as to how many amperes an ESC can handle before letting the magic smoke out. Generally, higher is better but there is really no need to get a 150a if your motor only pulls 100a. Just make sure that you get an ESC that has a higher current rating that what your motor will pull.
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Old 07-30-2012, 02:46 PM
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Originally Posted by SolderGlob View Post
Essentially they are measurements as to how many amperes an ESC can handle before letting the magic smoke out. Generally, higher is better but there is really no need to get a 150a if your motor only pulls 100a. Just make sure that you get an ESC that has a higher current rating that what your motor will pull.
okay gotcha
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Old 07-30-2012, 03:05 PM
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It is a measure of how many amps a esc can sustain for an extended period of time. Some also rate it in burst (generally 2-4x the standard rate).

A quick rule of thumb that I use:

45 and under - 2wd stock buggy, light vehicles, or high turn on road (21.5 etc), 2s lipo ok
60 - 100 - generally ok for 2wd sct, 4wd buggy, stock and mod sedan, 17.5 to 7.5 motors, 2s-3s lipo ok.
120+ - hotter than 7.5 motors, 4wd sct, 1/8 scale, 2s-4s lipo ok

Things get a little washy when you go to 1s pan cars as the voltage needs to be boosted and that changes things.
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