pic microcontroller discussion list <> wrote: > Input... > 100-120 VAC/5.0 A > 200-240 VAC/2.5 A Those will be the current drawn at full load, or peak inrush current. If the supply is 84% efficient at the current load ('I') you are drawing off it (it may not be, efficiency varies with load!), then you will be drawing (I/0.84)*24/120 Amps from the mains supply. > A. That means I can only plug in 2 of these into the wall? That depends absolutely on the load current you are drawing and, probably less important, the inrush current to the switching supply. As a first estimate, use the above formula to work out the current each will draw due to the load you are running on it, then add 50% to the total to give you some room for error! Nigel -- Nigel Orr, Design Engineer nigel@axoninstruments.co.uk Axon Instruments Ltd., Wardes Road,Inverurie,Aberdeenshire,UK,AB51 3TT Tel:+44 1467 622332 Fax:+44 1467 625235 http://www.axoninstruments.co.uk This e-mail and any files transmitted with it ("E-mail") is intended solely for the addressee(s) and may contain confidential and/or legally privileged information. If you are not the addressee(s), any disclosure, reproduction, copying, distribution or other use of the E-mail is prohibited. If you have received this E-mail in error, please delete it and notify the sender immediately via our switchboard or return e-mail. Neither the company nor any individual sending this E-mail accepts any liability in respect of the content (including errors and omissions) and timeliness of the E-mail which arise as a result of transmission. If verification is required, please request a hard copy version -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body