what are these components?
Hi This is a picture of the progressive industries surge suppressor. Does anyone know what these items are?
Forum Discussion
SoundGuy wrote:
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.
westom wrote:
Sacrificial MOVs violate MOV manufacturer datasheets. A sacrificial protector did not do protection. That catastrophic failure is completely unacceptable - considered a human safety threat. Normal failure mode for MOVs is degradation. That means MOVs still operate; but at voltages at least 10% from its original design.
Considering the massive success Progressive Industries has enjoyed with their series of EMS units, particularly the EMS-PT30C and EMS-PT50C, company engineering staff would no doubt appreciate being enlightened by yourself on the errors of their ways in using MOVs for surge protection. :R
