[RE-wrenches] DC disconnects

[Joel Davidson]

Culver City, California Building & Planning also require a separate disconnect in addition to the disco on the SMA inverter.
Joel Davidson
  ----- Original Message ----- 
  From: Rebecca Lundberg 
  To: re-wrenches at lists.re-wrenches.org 
  Sent: Monday, January 11, 2010 3:54 PM
  Subject: Re: [RE-wrenches] DC disconnects


  In response to this: "Luckily the latest inverters from most manufacturers take care of this need with their included/integrated but seperated fused DC disconnects....." 

  I actually wish the integrated disconnects for the new inverters were an option when purchasing, i.e. when I order the inverter it comes with it automatically, and is therefore reflected in the price. Where I live the AHJ and utlities are requiring the handled-lockable-'regular' AC and DC disconnects regardless of whether or not there is a UL-listed integrated disconnect with the inverter. Alas, for me it is redundancy and extra cost for materials and electrical work either way. I can either have the electrician wire it up and pay their cost, or I can leave the integrated inverter out (when it is listed as optional in the installation manual) but now I have a non-returnable part sitting around, which is wasteful too. Alas, the best solution is more solar so everyone becomes more familiar with it!

  Keep Shining!
  Rebecca Lundberg
  Powerfully Green, Minnesota



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