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markemark
DRR S/Pro
posted Hide Post
quote:
Part number of the mechanical switch with the large posts??


Cole Hersee 75912-BX
 
Posts: 3177 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
183N
DRR Sportsman
posted Hide Post
quote:
Originally posted by Cashflow:
Part number of the mechanical switch with the large posts??


Cole Hersee 75910. Have one on both cars. Edit: it’s the 75912.

Moroso rebadges them as a 74108.

This message has been edited. Last edited by: 183N,
 
Posts: 794 | Location: Upstate NY | Registered: July 02, 2013Reply With QuoteReport This Post
FootbrakeJim
DRR Pro
Picture of FootbrakeJim
posted Hide Post
quote:
Originally posted by DragRaceResults:
For those of you using the Cole Hersee mechanical switch with the 2 small poles for the alternator shut off you need to do your research.

I've posted this many of times over the years, but these are not designed to run the alternator charge wire though as they only flow 20 amps. You may think it's working, but not properly and not charging the way you think it is.

They are designed to control a relay which is used for the disconnect.

Look at replacing or upgrading to the new LARGE 4 POST design and run the alternator though the 2nd set.

SL...

Thank you, Scott. And MarkeMark + 183N for sharing the correct CH P/N 75912 for the switch with 4 large terminals. I fired up my car to move it into the shop, popped the trunk lid to check the voltages at the battery and the master cut-off switch terminals, and the smaller switch terminal that the 10 Gauge Alternator charge wire goes to was actually very hot to the touch.
Ordering the 75912 today.


Dan "Jim" Moore
Much too young to feel this damn old!!
 
Posts: 1210 | Location: Farmersville, TX  | Registered: December 05, 2002Reply With QuoteReport This Post
markemark
DRR S/Pro
posted Hide Post
quote:
I fired up my car to move it into the shop, popped the trunk lid to check the voltages at the battery and the master cut-off switch terminals, and the smaller switch terminal that the 10 Gauge Alternator charge wire goes to was actually very hot to the touch.


Consider increasing the size of the alternator wire based on this chart.

 
Posts: 3177 | Location: 53056 | Registered: December 30, 2009Reply With QuoteReport This Post
Big Steve
DRR S/Pro
Picture of Big Steve
posted Hide Post
I use the large 4 post with #4 wire from the alternator thru the shut off to the battery
 
Posts: 2849 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
CURTIS REED
DRR S/Pro
Picture of CURTIS REED
posted Hide Post
quote:
Originally posted by markemark:
quote:
I fired up my car to move it into the shop, popped the trunk lid to check the voltages at the battery and the master cut-off switch terminals, and the smaller switch terminal that the 10 Gauge Alternator charge wire goes to was actually very hot to the touch.


Consider increasing the size of the alternator wire based on this chart.



The contacts on the small pole will still be the restriction no matter the size of the wire. Unless you are talking about changing the wire size after changing to a larger DPST main switch.
 
Posts: 3645 | Location: KIEFER, OK. | Registered: August 17, 2007Reply With QuoteReport This Post
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