what are these components?
Hi This is a picture of the progressive industries surge suppressor. Does anyone know what these items are?
Forum Discussion
CJW8 wrote:
When it absorbs too much surge and fails, PD says to return it. The circuit board with the MOV's is probably then replaced as they are sacrificial.
Yes and No. ;) The OP is talking specifically about a hard wire Progressive Industries EMS-HW50C. Yes, the MOVs used for surge protection are considered sacrificial and can eventually fail if they sustain sufficient surges but in such a case all one needs to do is call Progressive and they will mail out by USPS a new MOV circuit board. The fact the hard wire version is field serviceable is one of several reasons I chose to buy a hard wire version rather than a portable EMS-PT30C which is sealed and must be returned to Progressive for repair.
FWIW, Progressive refers to these devices as "RV Power & Surge Protection", an important distinction as these EMS units do far more than a simple surge protector.
