Mike, Only if you gang them mechanically together, so they always open together, will you gain from series connection of breakers. Do not worry about the higher voltage at charging - the 250A breaker will only be needed to protect your pack while you are drawing from it, i.e. driving, not while charging (unless you have regen). 50 LiFePO4 means 3.2V each, so 160V, charged up to 3.45V peak so 172V max? I don't think you should worry about the few volts higher, but if you do not like to push your luck then gang your two breakers together and that way ensure you can break up to 320V.
Success, Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water Tel: +1 408 383 7626 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mike Scott Sent: Monday, June 24, 2013 4:08 PM To: Electric Vehicle Discussion List Subject: [EVDL] Airpax ALM-250 safe on 160V system? I'd like to use this breaker I have, but now have 50 LiFePo calls instead of the 12 12V gels. Is it time to break out the spare breaker and wire them in series? The rating says "Max 160V", but charging will go above that. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130624/ae5b dcfd/attachment.htm> _______________________________________________ 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) _______________________________________________ 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)
