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Old 12-20-2019, 06:39 PM   #1
Preston & Terri
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Factory installed surge protector

Just bought a 2020 3931FB Legacy, it supposedly has a hardwired surge protector installed. Unfortunately, I can not find it.
Considering there is no remote display, I have to assume it's the local display model.
Has anyone found theirs?
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Old 12-20-2019, 06:57 PM   #2
Ahdmeyer
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take off the covers on the bulkhead wall, the curved one and the inside one where the command center panel is. as far as i know it is just a surge guard and it does not protect you from high, low voltage or an open neutral. i add a progressive 50 amp ems
https://www.amazon.com/Progressive-I...35719365&psc=1
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Old 12-21-2019, 03:00 AM   #3
RMcNeal
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Agree with AhdMeyer. I have a 20th anniversary edition 3791RD with the legacy package. It's only a surge guard, not an EMS. I still have an external EMS from Progressive Industries.
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Old 12-22-2019, 09:14 AM   #4
Alainle
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We asked the question to Keystone directly and they confirmed that the Legacy package includes Progressive Dynamics 50 AMP automatic transfer switch high voltage Surge Protection Model PD52DCSD with remote display.
They replied...’All of PDI’s transfer switch have an onboard management system or EMS. Fluctuations in voltages are a common problem in electrical devices and have to be protected from those fluctuations. Once those fluctuations move beyond the EMS standard threshold, be it too much voltage or not enough voltage buffering of the voltage takes place. This buffing also has a limit and beyond that limit is what the surge protection is for.
I hope this has been helpful.’
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Old 12-29-2019, 06:27 AM   #5
Preston & Terri
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Ok, found the transfer switch with integrated protection. I think I'll still use my portable Surge Guard at the pedestal. I prefer having the display for voltage/amps as well as the info on what the problem is.

https://www.progressivedyn.com/rv/au...specifications
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Old 09-27-2020, 10:35 AM   #6
mbjam359
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Where the hell is the digital readout? I am having issues and I suspect the surge guard unit.
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