Reply
 
Thread Tools Display Modes
 
Old 03-31-2016, 06:18 PM   #1
Veteran Member
 
wonderfulwade's Avatar
 
City: Charleston
Country: USA
Vessel Name: LAZY LIBRA
Vessel Model: Marine Trader 44
Join Date: Dec 2015
Posts: 41
AC rotary selector switch

Is there an expert here who can confirm this switch will take three 50 amp 120V sources to include an off position?

Kraus Naimer C32 A211 601 Shore Power Rotary Selector Inverter Boat Switch | eBay
__________________
Advertisement

wonderfulwade is offline   Reply With Quote
Old 03-31-2016, 06:40 PM   #2
Guru
 
psneeld's Avatar
 
City: Avalon, NJ
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 15,887
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?
__________________

psneeld is offline   Reply With Quote
Old 03-31-2016, 07:01 PM   #3
Guru
 
rochepoint's Avatar
 
City: Sidney BC
Country: Canada
Vessel Name: Rochepoint
Vessel Model: 1985 Cheer Men PT38 Sedan
Join Date: Apr 2009
Posts: 1,191
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.
__________________
Cheers Mike Barge
MV Rochepoint
Sidney, British Columbia.
"Yes, I have the right anchor"
rochepoint is offline   Reply With Quote
Old 04-01-2016, 07:36 AM   #4
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,524
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.
FF is offline   Reply With Quote
Old 04-01-2016, 07:45 AM   #5
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Quote:
Originally Posted by FF View Post
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.
While that would work fine for me but I doubt it would work for my wife and/or guests. It also takes more room.
rwidman is offline   Reply With Quote
Old 04-01-2016, 07:49 AM   #6
Veteran Member
 
seadogmike's Avatar
 
City: Charleston, SC
Country: USA
Vessel Name: Inspiration
Join Date: Nov 2015
Posts: 66
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
seadogmike is offline   Reply With Quote
Old 04-01-2016, 08:37 AM   #7
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
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.
Capt.Bill11 is offline   Reply With Quote
Old 04-01-2016, 08:39 AM   #8
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Quote:
Originally Posted by FF View Post
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.
You have a unique definition of "simpler".
Capt.Bill11 is offline   Reply With Quote
Old 04-01-2016, 09:29 AM   #9
Veteran Member
 
wonderfulwade's Avatar
 
City: Charleston
Country: USA
Vessel Name: LAZY LIBRA
Vessel Model: Marine Trader 44
Join Date: Dec 2015
Posts: 41
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
wonderfulwade is offline   Reply With Quote
Old 04-01-2016, 10:19 AM   #10
TF Site Team
 
ksanders's Avatar
 
City: SEWARD ALASKA
Country: USA
Vessel Name: LISAS WAY
Vessel Model: BAYLINER 4788
Join Date: Feb 2011
Posts: 3,954
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.
__________________
Kevin Sanders
Bayliner 4788
Seward, Alaska
www.mvlisasway.com
ksanders is offline   Reply With Quote
Old 04-01-2016, 10:32 AM   #11
Guru
 
City: North Charleston, SC
Country: USA
Join Date: Sep 2010
Posts: 4,390
Quote:
Originally Posted by ksanders View Post
I'll pipe in here and question why you need a switch to go between genset, shore, and inverter to begin with..........
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.
rwidman is offline   Reply With Quote
Old 04-01-2016, 01:17 PM   #12
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Country: USA
Vessel Name: Small Incentive
Vessel Model: Boston Whaler 130 Sport
Join Date: Aug 2011
Posts: 3,792
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"
caltexflanc is offline   Reply With Quote
Old 04-01-2016, 06:20 PM   #13
Veteran Member
 
wonderfulwade's Avatar
 
City: Charleston
Country: USA
Vessel Name: LAZY LIBRA
Vessel Model: Marine Trader 44
Join Date: Dec 2015
Posts: 41
Quote:
Originally Posted by caltexflanc View Post
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....

Thanks....just what I was looking for!
wonderfulwade is offline   Reply With Quote
Old 04-02-2016, 10:54 AM   #14
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,524
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.
__________________

FF is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 03:28 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012