Oops, missed the second part of your question. Yes, most of them do on the input side, some have them on the output as well.
BTW, the flaming UPS was probably a problem with Windows or the software; the log showed that the line voltage was high, but the software was telling it to boost the voltage like it was low. Also that was quite awhile back. -- graywolf http://www.graywolfphoto.com http://webpages.charter.net/graywolf "Idiot Proof" <==> "Expert Proof" ----------------------------------- Feroze wrote: > Thanks, didn't know that...how do you test if a surge protector is > working other than the obvious way... > > Do UPS's also have mov's? > > Feroze > > J. C. O'Connell wrote: >> mov's get "used up" (not quite same thing as going bad, since this is >> inherent ) due to a number of >> small surges or one big one, leaving you with NO mov in effect. >> jco >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of >> graywolf >> Sent: Friday, June 15, 2007 7:19 PM >> To: Pentax-Discuss Mail List >> Subject: Re: Lightning proof? >> >> >> Sometimes a surge partially gets past the first MOV. Also sometimes >> MOV's go bad. Just extra insurance in other words. >> >> MOV is short for Metal Oxide Varistor and is is the semiconductor inside >> the unit that actually deals with the surge. >> >> > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
