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Old Sep 30, 2012, 08:47 AM
Aj Creations
India, KA, Bangalore
Joined Dec 2011
109 Posts
Discussion
Motor-ESC connectors?

what sort of connectors, can I use for hooking up my motor to the ESC, besides the usual bullet connectors?
My motor draws about 30amps on a 7x6 prop, so the connectors must be capable of handling atleast 30A.
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Old Sep 30, 2012, 09:17 AM
muncheyboy
Joined May 2011
57 Posts
conectors

i just got back from wallmart with a new soldering iron. i sat down & was just about to look around & ask. i forgot to look for diffrent conectors, if i see any thing ill let you know, . larry...
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Last edited by muncheyboy; Sep 30, 2012 at 09:21 AM. Reason: forgot
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Old Sep 30, 2012, 09:48 AM
Wake up, feel pulse, be happy!
C₄H₁₀'s Avatar
United States, AK, Fairbanks
Joined Aug 2009
12,265 Posts
3.5mm bullet connectors are pretty standard in that current range. They can be found pretty much anywhere that sells motors and ESCs. Males go on the motor, females on the ESC. Solder 'em on, cover with heatshrink. Done.
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Old Sep 30, 2012, 09:51 AM
Jack
USA, ME, Ellsworth
Joined May 2008
16,323 Posts
There are many choices, here is just one listing:

http://www.headsuprc.com/servlet/the...ORS/Categories

For a 30A rated motor I would use 3.5mm bullets on the ESC (sockets) to motor (bullets) connections. I like the 3.5mm bullets as a good all around size for motors bigger than 40 grams or so up to over 100 grams. That way I can mix and match my ESCs and motors as much as I want or need to.

For the battery I am a Dean's Ultra person. Or the T-plug cones. On the clones I like the ones with the "X" pattern molded into them as they are easier to get a grip on.

Others will prefer XT60, EC3, APP, or whatever they got started with on batteries. It makes sense to have the same connector on most of your batteries. And the socket or female should be on the battery and the male on the ESC so that you do not have exposed contacts with voltage on them.

Jack
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Old Sep 30, 2012, 10:01 AM
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peterangus's Avatar
Blackpool, Great Britain (UK)
Joined Dec 2003
1,342 Posts
Three small blobs of solder per motor is all that is required.

Lighter, neater, quicker, universal, more reliable.
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Old Sep 30, 2012, 09:04 PM
muncheyboy
Joined May 2011
57 Posts
conectors

thanks for the in put, i never knew about heads up. iam in myrtle beach, thats just down the road from me = 2-3 day delevery !
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Last edited by muncheyboy; Sep 30, 2012 at 09:05 PM. Reason: spelling
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Old Oct 01, 2012, 08:02 AM
Jack
USA, ME, Ellsworth
Joined May 2008
16,323 Posts
Great people to deal with, Jeff is a flyer and understands our needs.

Jack
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Old Oct 11, 2012, 06:05 AM
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LawnDartMike's Avatar
United States, OR, Salem
Joined Jan 2012
286 Posts
What would be the amp limit on the 3.5mm connector? I have a 60 amp esc with 4mm on it but will only be running around 45 amps through it. I hate to buy the 4mm when I have a bunch of 3.5mm laying around.
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Old Oct 11, 2012, 06:17 AM
Jack
USA, ME, Ellsworth
Joined May 2008
16,323 Posts
Quote:
Originally Posted by LawnDartMike View Post
What would be the amp limit on the 3.5mm connector? I have a 60 amp esc with 4mm on it but will only be running around 45 amps through it. I hate to buy the 4mm when I have a bunch of 3.5mm laying around.
The 60A rating is the max amount of current the motor will be allowed draw safely, on the motor leads that would be divided into three equal smaller and intermittent loads.

I would not hesitate to try the 3.5mm connectors even if I were going to hit the 60A peak momentarily and occasionally. I'd give a five to ten second full throttle static test run and feel the connectors by hand. And unless they were hot I'd consider it to be fine.

Jack
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