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03-31-2016, 05:40 PM
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#2
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Guru
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,119
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I do not belive it will.
Looks like 2 sources and an off.
Have you been to their Web site?
Confusing but it helped me and when I emailed a local distributer...they were very responsive and helpful.
What are you trying to do?
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03-31-2016, 06:01 PM
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#3
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Guru
City: Sidney BC Canada
Vessel Name: RochePoint
Vessel Model: 1985 Cheer Men PT38 Sedan
Join Date: Apr 2009
Posts: 1,744
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Looks like only two source, when I needed a new one I finally talked direct with Kraus Naimer. They were great and got me the right switch at a good price right away.........happy customer.
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04-01-2016, 06:36 AM
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#4
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Guru
Join Date: Oct 2007
Posts: 22,553
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Simpler folks can use a 240V 50A plug ( the boat) and 3 sockets (the sources) , which solves the joined vs not joined ground and neutral wiring hassles.
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04-01-2016, 06:45 AM
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#5
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,869
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Quote:
Originally Posted by FF
Simpler folks can use a 240V 50A plug ( the boat) and 3 sockets (the sources) , which solves the joined vs not joined ground and neutral wiring hassles.
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While that would work fine for me but I doubt it would work for my wife and/or guests. It also takes more room.
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04-01-2016, 06:49 AM
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#6
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Veteran Member
City: Charleston, SC
Vessel Name: Inspiration
Join Date: Nov 2015
Posts: 66
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According to the Kraus and Naimer website this is a 2 pole switch, meaning 2 inputs. Be sure that any switch you get is a break before make type switch. Just my $.02.
__________________
Seadogmike
Coastal, SC
ABYC Certified Marine Electrician
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04-01-2016, 07:37 AM
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#7
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Guru
City: Sarasota/Ft. Lauderdale
Join Date: Apr 2014
Posts: 5,438
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There is a phone number just call them and ask.
But as others have said, it appears to be a two input switch and the amperage capacity at 240 v looks like it would be to low.
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04-01-2016, 07:39 AM
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#8
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Guru
City: Sarasota/Ft. Lauderdale
Join Date: Apr 2014
Posts: 5,438
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Quote:
Originally Posted by FF
Simpler folks can use a 240V 50A plug ( the boat) and 3 sockets (the sources) , which solves the joined vs not joined ground and neutral wiring hassles.
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You have a unique definition of "simpler".
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04-01-2016, 08:29 AM
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#9
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Veteran Member
City: Charleston
Vessel Name: LAZY LIBRA
Vessel Model: Marine Trader 44
Join Date: Dec 2015
Posts: 44
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Anyway as part of the restoration of Lazy Libra, I'm rewiring her 50 amp to support the new amp load and looking for a good marine rotary switch for gen set, shore and inverter. Already paying Blue sea plenty for new panels .......just looking for an alternative to their $450 rotary switch..........frugal I am! Thanks for the positive input everybody
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04-01-2016, 09:19 AM
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#10
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Moderator Emeritus
City: SEWARD ALASKA
Vessel Name: DOS PECES
Vessel Model: BAYLINER 4788
Join Date: Feb 2011
Posts: 6,263
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I'll pipe in here and question why you need a switch to go between genset, shore, and inverter to begin with.
since you indicated you are buying new panels anyway...
The traditional design is to have a selector to choose between two sources, IE the generator or shore power. This can be acomplished easily and cheaply using breaker lockouts or a two position rotary switch. This setup powers the main AC panel.
The inverter powers a separate sub panel, with Its AC feed from the main panel. If you want the inverter sub panel to be able to bypass the inverter completely another set of breaker lockouts, or a two position rotary selector switch would provide redundance in case the inverters ATS maldunctioned.
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04-01-2016, 09:32 AM
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#11
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Guru
City: North Charleston, SC
Join Date: Sep 2010
Posts: 4,869
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Quote:
Originally Posted by ksanders
I'll pipe in here and question why you need a switch to go between genset, shore, and inverter to begin with..........
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Yes, an inverter should not connect to the boat's main electrical panel because there's no way it could possibly support all the loads. AC, water heater, stove, etc.
A sub panel would be best. Another plan is what I did. I have a single circuit supplying all the 120 volt AC receptacles so I wired the inverter to this circuit. The inverter has an internal transfer switch so if the inverter is on and there's no AC power, it supplies power to the outlets.
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04-01-2016, 12:17 PM
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#12
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Guru
City: North Carolina for now
Join Date: Aug 2011
Posts: 6,348
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As others have said , you only need a three way switch if 1) your inverter does not have a built in transfer switch and 2) your inverter can handle all the loads (otherwise, you have the complication of turning off those loads it doesn't handle before switching)
Why not get one of these nice NewMar switches?
Newmar AC Ship Shore Switches-AC Newmar - Star Marine Depot
This reminds me of a year or two ago when I got some major internet flaming here for urging folks to have a separate inverter sub-panel. Ah well....
__________________
George
"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
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04-01-2016, 05:20 PM
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#13
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Veteran Member
City: Charleston
Vessel Name: LAZY LIBRA
Vessel Model: Marine Trader 44
Join Date: Dec 2015
Posts: 44
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Quote:
Originally Posted by caltexflanc
As others have said , you only need a three way switch if 1) your inverter does not have a built in transfer switch and 2) your inverter can handle all the loads (otherwise, you have the complication of turning off those loads it doesn't handle before switching)
Why not get one of these nice NewMar switches?
Newmar AC Ship Shore Switches-AC Newmar - Star Marine Depot
This reminds me of a year or two ago when I got some major internet flaming here for urging folks to have a separate inverter sub-panel. Ah well....
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Thanks....just what I was looking for!
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04-02-2016, 09:54 AM
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#14
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Guru
Join Date: Oct 2007
Posts: 22,553
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You have a unique definition of "simpler".
Indeed, How does the 3 way rotary handle the fact that the neutral and ground are combined at the source.
At the invereter, at a noisemaker , and at the dock power pole .
For a boat plug with 3 sockets its a no brainer , ez to understand and perhaps $50 for everything.
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