SB304- SB50 limits [RE-wrenches]

Tue Nov 13 14:48:22 PST 2001

Rick Cullen - RV Power Products wrote:

> I have had numerous conversations with individuals at Outback. 
> They  have designed their DC disconnect box to accept 4 or 5
> SB3048/50's using standard straight 1" feed throughs. I believe
> however that the units do not attach to the back wall but are held
> in place by the feed throughs.

Just wanted to clarify Rick's statement.  The OutBack PSDC will allow 
direct mounting of two SB50s on the top panel with 1" nipples.  The left 
one overhangs the side slightly.  Three more can be mounted off to the 
right of the PSDC on the wall with a short conduit connection between 
the PSDC and the SB50.  Not ideal but fairly clean looking and 
acceptable in my eye.  We are looking at making a support bracket for 
the two RVPP SB50s on the top to eliminate the need to block them to the 
wall.  I don't think mounting the controller only by the conduit 
connection is acceptable to the NEC - can you give us a ruling Bill?  

Top mounting of the SB50s on the PSDC is not ideal however,  as the 
equalize button is up on top and hard to access.  Also, the SB50s LED is 
hard to see if you are not a basketball player.  

The OutBack PSDC will accomindate six Trace C40 controllers - three on 
the side using the OutBack CCB bracket and three on top.  We don't 
advise mounting the SB50s inside the PSDC,  but other small controllers 
can be - such as the morningstar brand which does not have an enclosure. 

The RVPP SB50's and the Trace C40/C60's knoclout locations are only 
slightly different - but it is these little differences that make a big 
difference when you try and design a box that works with both - or try 
to install them in the real world!    

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas at outbackpower.com  www.outbackpower.com
Tel 360 435 6030  Arlington WA USA

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