[Amps] MOVs on HV PS

Jim Brown jim at audiosystemsgroup.com
Mon Mar 5 17:49:51 EST 2007


On Mon, 05 Mar 2007 15:43:56 -0700, Larry Benko wrote:

>I have several surge/RF filter devices made by Tripp-Lite and they have 
>3 MOVS in them.  They also have UL/CSA rated caps across all 3 wires but 
>the caps to the neutral line have smaller capacitance so as to no trip 
>GFI devices.  Everything in the unit is on the downstream side of a 
>circuit breaker which is in the hot lead.  No fault can cause continuous 
>neutral currents that way.  I see no problem with this design and should 
>the surge/RF filter be placed a long way from the service entrance, 

There is a MAJOR problem with this design. See the tutorial referenced 
earlier in this thread. The UL sticker says nothing more than that the 
components won't burn your house down if they are used properly. It doesn't 
say that it will protect you from surges. 

73,

Jim Brown K9YC




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