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03-07-2023, 07:56 AM
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#1
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Seasoned Camper
Join Date: Feb 2019
Location: Oroville
Posts: 66
M.O.C. #23396
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Phase transfer switch
What is everybody using for their inverter to feed 30 amps into the 50 amp panel?
I hear the AM solar SPS smart phase selector is not being sold.
Any help would be appreciated.
Thanks Charlie
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03-07-2023, 09:00 AM
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#2
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,233
M.O.C. #30417
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Don't understand the question. The newer RV's have a 50 amp TS. If equipped with an inverter, the inverter has a built in TS that passes shore or gen power when present. If not present it starts to invert. It has a built in 20 amp breaker and directly feeds designated outlets. No connection to the panel. The TS switches between the gen and shore power. Progressive Dynamics is popular but there are several to choose from.
__________________
Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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03-07-2023, 03:44 PM
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#3
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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Your question is not clear.
Are you talking about an inverter to convert 12 vdc battery power to 120 vac? (That would take over 300 amps of 12 vdc to create 30 amps of 120 vac).
Or are you talking about an inverter generator to supply 30 amps of 120 vac?
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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03-12-2023, 01:19 PM
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#4
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Montana Master
Join Date: Jan 2016
Location: STAYTON
Posts: 1,118
M.O.C. #18157
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I think there's a 'terminology' issue.
RV power is Single Phase.
Your choices are 30A single phase or 50A single phase (2 legs 110V same circuit.) Your RV decides what to do from there.
__________________
“Hard times create strong men, strong men create good times, good times create weak men, and weak men create hard times.”
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03-12-2023, 01:34 PM
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#5
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Seasoned Camper
Join Date: Sep 2018
Location: Conklin
Posts: 78
M.O.C. #22648
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I think I understand, Charlie. You want to feed both 50a legs of your coach when on a 30a connection. I actually have the Smart Phase Selector - I wasn’t aware they quit selling it. It works great for me. Victron now makes an inverter with a built in 50a transfer switch, so maybe that’s an option?
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