DC power question

User avatar
ehsab
Member
 
Posts: 18
Joined: Wed Dec 09, 2015 1:39 pm
Location: Sweden
Has thanked: 0 time
Been thanked: 1 time

DC power question

Fri Jul 22, 2016 4:40 pm

Hi,
I'm not that familiar with DC power but i'm gonna do my first install.
I have done plenty of AC installations and like the WISP Switches.

Could the power from this unit supply a 250DC switch?

Image

User avatar
lligetfa
Associate
Associate
 
Posts: 1186
Joined: Sun Aug 03, 2014 12:12 pm
Location: Fort Frances Ont. Canada
Has thanked: 305 times
Been thanked: 381 times

Re: DC power question

Fri Jul 22, 2016 4:57 pm

Check the warning on #3 about + being grounded.

User avatar
sirhc
Employee
Employee
 
Posts: 7347
Joined: Tue Apr 08, 2014 3:48 pm
Location: Lancaster, PA
Has thanked: 1597 times
Been thanked: 1318 times

Re: DC power question

Fri Jul 22, 2016 5:20 pm

The whole idea of the WS-12-250-DC and WS-8-150-DC is that they are hooked DIRECTLY to a battery bank and that they can take a wide range of input voltages and keep everything running as your batteries discharge all the way to near dead if you want.

If you are going to use a regulated power supply such as this you should use the WS-12-DC not the smart WS-12-250-DC or WS-8-150-DC
Support is handled on the Forums not in Emails and PMs.
Before you ask a question use the Search function to see it has been answered before.
To do an Advanced Search click the magnifying glass in the Search Box.
To upload pictures click the Upload attachment link below the BLUE SUBMIT BUTTON.

User avatar
lligetfa
Associate
Associate
 
Posts: 1186
Joined: Sun Aug 03, 2014 12:12 pm
Location: Fort Frances Ont. Canada
Has thanked: 305 times
Been thanked: 381 times

Re: DC power question

Fri Jul 22, 2016 7:11 pm

sirhc wrote:If you are going to use a regulated power supply such as this you should use the WS-12-DC not the smart WS-12-250-DC or WS-8-150-DC

I understand about the regulated 48V aspect but WRT the DC+ being grounded on that power supply and the PoE kit potentially being grounded on DC- does not that pose a risk? I would think an isolated DC/DC supply would be needed.

User avatar
sirhc
Employee
Employee
 
Posts: 7347
Joined: Tue Apr 08, 2014 3:48 pm
Location: Lancaster, PA
Has thanked: 1597 times
Been thanked: 1318 times

Re: DC power question

Fri Jul 22, 2016 7:30 pm

Yea, that is be a problem, it is a negative 48V system with Earth Ground bonded to the Positive rail so yea that will not work.
Support is handled on the Forums not in Emails and PMs.
Before you ask a question use the Search function to see it has been answered before.
To do an Advanced Search click the magnifying glass in the Search Box.
To upload pictures click the Upload attachment link below the BLUE SUBMIT BUTTON.

Return to General Discussion

Who is online

Users browsing this forum: No registered users and 107 guests