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ESC: 120A vs 120A

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Old 12-18-2013 | 07:55 PM
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Default ESC: 120A vs 120A

My question is what's the difference in 4S compatible 120A ESC's marketed for 1/8 scale versus those marketed for SCs versus those marketed for 1/10 scale non-SC? In my naive mind, 120 is 120. Shed knowledge please.

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Old 12-18-2013 | 08:14 PM
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Originally Posted by metoo
My question is what's the difference in 4S compatible 120A ESC's marketed for 1/8 scale versus those marketed for SCs versus those marketed for 1/10 scale? In my naive mind, 120 is 120. Shed knowledge please.
possibly weight and footprint. But they would do the same work.

And FWIW, 1:8 ESCs are pretty common players in 1:10 SC
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Old 12-19-2013 | 05:23 AM
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Originally Posted by metoo
My question is what's the difference in 4S compatible 120A ESC's marketed for 1/8 scale versus those marketed for SCs versus those marketed for 1/10 scale non-SC? In my naive mind, 120 is 120. Shed knowledge please.
voltage rating is where the difference comes in.
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Old 12-19-2013 | 05:25 AM
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Yes. 120A is way different when you double the voltage.
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Old 12-19-2013 | 09:08 AM
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The 1/8 scale ESC is capable of handling motors that produce double the wattage of their 1/10 scale counterparts. 1/10 scale ESCs normally have an input voltage rating of 2S (7.4 volts), whereas the 1/8 scale ESCs are nominally rated at 14.8 volts. Double the voltage at the same amperage rating = double the power handling capability...
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Old 12-19-2013 | 01:55 PM
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Originally Posted by oeoeo327
The 1/8 scale ESC is capable of handling motors that produce double the wattage of their 1/10 scale counterparts. 1/10 scale ESCs normally have an input voltage rating of 2S (7.4 volts), whereas the 1/8 scale ESCs are nominally rated at 14.8 volts. Double the voltage at the same amperage rating = double the power handling capability...
yep, not quite as simple as 120 is 120.
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