On Sun, Nov 3, 2013 at 12:46 AM, Lee Hart <[email protected]> wrote: > A disconnect is typically an "oh, shit!" device; a way to stop the > excitement in case of an emergency. It *has* to work; but it only has to > work ONCE (because you have to fix it before you can try again).
Exactly. It's my emergency fallback if the contactor welds. No other purpose. > Arc quenching: Contactors built for DC motor control will have built-in > methods to deal with contact arcing. They have definite maximum voltage and > current levels that they can safely switch. Within these limits, they can > switch 100,000 times or more. Ah! The contactor I have is an Alltrax SOL-48V-400A; 48V coil and contacts. Rated for 10,000 cycles. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
