Try Anderson power products... The SBS50 is about 3" long as an assembled
pair and are rated at 50A continuously and during mating. The copper mating
surface is about 5x the area of a deans plug and burst mode they are good
for 250+A total weight is about 2 oz and most of that is copper. The
termination pins accept either 6mm or 16mm cable depending on which one you
go for... I know they are bigger than deans but they are well up to the job
. The power pole 30A (PP30) are used for racing cars and are ok to about
100A peak they are about equivalent to the deans plugs but a bit bigger they
could be parallel connected as they stack...


Steve 

-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of
Zik Saleeba
Sent: 17 June 2008 00:36
To: Microcontroller discussion list - Public.
Subject: [EE] Connector for high current

I'm designing a small VTOL UAV which runs on brushless DC motors. The
maximum current draw at the LiPo battery is 210A (at 22.2V). Normally R/C
applications like this use Deans Ultra plugs but they're not rated for this
kind of current (info is scarces but some sites claim they're rated at 60A).

http://www.wsdeans.com/products/plugs/ultra_plug.html

I was wondering if anyone had a suggestion of a good polarised 200+ amp
power connector which is light in weight and reasonably easily attached and
detached. Any ideas?

Thanks,
Zik
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http://mailman.mit.edu/mailman/listinfo/piclist