kerry4951 wrote:
I recently purchased a 30 Amp Hughes Autoformer power booster, Mdl RV2130. Prior to this, I was using a Surge Guard Mdl 34730 unit for just surge and spike protection. I was wondering has anyone ever used both? I am thinking of plugging the Surge Guard first into the park power pedestal, and then plugging the Autoformer into the Surge Guard before any power enters the RV. I know the Autoformer does have some limited surge protection, but Im thinking by hooking up both of them I might have the best of both worlds. Does anyone use both working together?
Here's what
Surge Guard recommends for the 34730 when using it with their
voltage regulators . . .
The VRSG (Voltage Regulator by TRC) is not a protective device and the connected RV will not be protected from damage should an open neutral develop during the course of operation. The fault indicator panel is for indication only. Note: The VRSG is not a surge protector. To achieve the ultimate combination of line voltage and surge protection, use with Surge Guard models 44750 or 34730 which must be plugged in after (downstream) of the VRSG. In addition, to provide surge protection for the VRSG, use Surge Guard model 44260 which must be plugged in before (upstream) of the VRSG.The
Hughes Autoformer Manual says that the unit protects against "various spikes and surges" but "In certain instances, a surge or spike might actually damage your Autoformer while it’s protecting your RV."
Pretty vague.
I follow Surge Guard's (TRC) advice with my 50A setup which is . . . Power Pedestal ->
44270 fault indicator ->
50A TRC Voltage Regulator ->
50A Surge Guard Plus.
However, the 44270 is just a fault "indicator".
You plug it in first and pray that nothing bad happens after you connect it to the voltage regulator and surge guard. Because if an open neutral occurs, the voltage regulator would get fried.
