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01-12-2011, 10:39 AM | #21 |
Gone Wild
Join Date: May 2008
Posts: 772
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Re: forward/reverse switch change to toggle switch
Regardless of all that, it looks like the contactors Chevy is looking at are suitable. The higher current draws are very brief, only on the inrush. This is why, like you stated we see carts pulling loads like this with #4 and #2 cables everyday.
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01-12-2011, 10:41 AM | #22 | |
Gone Wild
Join Date: May 2008
Posts: 772
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Re: forward/reverse switch change to toggle switch
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01-12-2011, 11:01 AM | #23 |
Maybe This Weekend :)
Join Date: May 2009
Location: Lake Norman, NC
Posts: 6,411
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Re: forward/reverse switch change to toggle switch
You guys have to much knowledge
So could I just use this? http://www.tecknowledgey.com/catalog...2cf72fdcdf4a20 If so what else do I need besides cables and a rocker switch? Thanks guys |
01-12-2011, 11:03 AM | #24 |
Gone Wild
Join Date: Aug 2010
Location: Pocono Mountains, PA
Posts: 162
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Re: forward/reverse switch change to toggle switch
I have a little experience running battery banks with high amp draws in that 400-500 amp range for powering communications radio amplifiers. It has been my experience that bigger is better when it comes to cable and contacts. If you run properly sized cable and contacts they should not get beyond just a little bit warm after running for a while.
If your cables (or lugs/connectors or solenoid or switch) are getting warm (or downright hot) then you are losing power and need to upsize. Heat=power loss If it was me running something that draws 400-500 amps even on a short term basis I sure as hell wouldn't use anything smaller than 2/0..but that's just me. Just because folks do it doesn't mean it makes any sense. |
01-12-2011, 11:18 AM | #25 |
Maybe This Weekend :)
Join Date: May 2009
Location: Lake Norman, NC
Posts: 6,411
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Re: forward/reverse switch change to toggle switch
ill be switching over to 2/0 when I drop 72 volts in
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01-12-2011, 11:19 AM | #26 |
Gone Wild
Join Date: Mar 2009
Location: South Texas
Posts: 2,391
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Re: forward/reverse switch change to toggle switch
CHEVYRACING75 NOTE while looking at Allbright SW822 reverse contactor you show it has ( 12 volt coil ) and NO Bracket? Is this what you really want??
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01-12-2011, 11:22 AM | #27 | |
Gone Wild
Join Date: May 2008
Posts: 772
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Re: forward/reverse switch change to toggle switch
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01-12-2011, 11:26 AM | #28 | ||
Maybe This Weekend :)
Join Date: May 2009
Location: Lake Norman, NC
Posts: 6,411
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Re: forward/reverse switch change to toggle switch
Quote:
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01-12-2011, 11:37 AM | #29 |
Gone Wild
Join Date: May 2008
Posts: 772
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Re: forward/reverse switch change to toggle switch
Chevy just looked at that again, only 100-125 amp rating. I wouldn't recommend it. Albright's comparable contactor to the first one you linked cost about 360.
If you use the kilovac main contactor you will need a separate 12volt power supply anyways. I personally would go with the first two you linked and run a small 12v for control and accessories... My .02 |
01-12-2011, 11:52 AM | #30 |
Maybe This Weekend :)
Join Date: May 2009
Location: Lake Norman, NC
Posts: 6,411
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Re: forward/reverse switch change to toggle switch
So these 2?- =101-ZJWH400A-2T http://www.evsource.com/tls_nanfeng.php $208.88
and a 101-LEV200H4ANA http://www.evsource.com/tls_kilovac.php $104.88 Will I ne able to hook this up with 48v and 72v or will I have to wait until I get the batteries for 72v? |
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