Author Topic: MOVs and Thermistors now avail. for 230V machines  (Read 2733 times)

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Marty Machine

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Re: MOVs and Thermistors now avail. for 230V machines
« on: June 17, 2014, 09:04:41 PM »
Mike, aren't these somewhat low in voltage rating? 230v?? they would short at switch-on with regular 240v present.....
Do you have deeper specs on their idle voltage versus spike voltage to indicate what voltage fluctuations these will handle?

I only ask this, because i've had to repair endless industrial equipment that some tech before me fitted out with 220v-240v MOVs, only to find all the machines blew fuses at powerup.
In that particular case i had to replace all the MOVs with the original versions being 300v rated according to the manual/tech guidlines.

Most pinny sites/mods i've seen have used the 275v versions for Aus.

Also to note, for anyone powering on a USA 110v pinny on 240, the MOV will short and blow the fuse...if there's any "sparks" it's just the mov+fuse exploding, NOT your pinny/boards ;-)

MM