The device claims to have no step-up transformer, so I am led to believe that it has two 120V input cords to combine (using relays for a shock-free experience) both into the 240V output.
Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: cwa...@proxim.com Private: http://www.cvandewater.info Skype: cor_van_de_water Tel: +1 408 383 7626 -----Original Message----- From: ev-boun...@lists.evdl.org [mailto:ev-boun...@lists.evdl.org] On Behalf Of Lawrence Rhodes Sent: Wednesday, March 27, 2013 9:25 PM To: ev@lists.evdl.org Subject: Re: [EVDL] Best J1772 deal, Re: chargers in parallel That device will not give you 30 amps. Maybe 7 amps at 240vac. You really need the two mains to get the amps. This is a simple voltage converter. Lawrence Rhodes..... From: Nathan Loofbourrow <njl...@gmail.com> To: Electric Vehicle Discussion List <ev@lists.evdl.org> Subject: Re: [EVDL] Best J1772 deal, Re: chargers in parallel Message-ID: <0c630a7f-aba4-43e2-8df5-0eb395a68...@gmail.com> Content-Type: text/plain; charset="us-ascii" Sounds like what this device does: http://www.quick220.com/220_volt.htm On Mar 27, 2013, at 19:45, "Cor van de Water" <cwa...@proxim.com> wrote: > That is *certainly* a way to create life-threatening situations! > A somewhat acceptable way to create a 240V circuit using two > independent 120V branches is to use single pole relays that pull > in after you plugged in the socket and an additional 240V relay > that drops out as soon as one of the two plugs is removed. > Each 120V relay is powered from one 120V plug and its NO contact > makes contact between incoming AC and one of the outgoing phases > but one of the outgoing wires is also interrupted by the NO > contact of a 240V relay that will drop out as soon as one of the > incoming 120V plugs is pulled, so the load does not continue to > hold one 120V relay with the 120V from the other leg. > NOTE that the 240V relay must have a lower current rating than > the min hold current of the 120V relays. > > No doubt there are other circuits to protect this kludge, but it > is best to simply use a 240V outlet! > _______________________________________________ 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)
