DC side switching and overload protection

hemmjo

I am planning an off grid system. Many of you have helped to this point with the choice of inverter. I decided to gamble and try an KISAE SW1210 1000W Pure Sine Wave Power Inverter. I will test it well before I take it to the Dominican Republic to set it up. The specifications compare well with the Xantrex PROwatt 1000.

Now moving on to DC circuit protecting. The specs call for 150A fuse and a disconnect switch on the DC side. I ordered a 150 amp fuse and block but in searching for a switch I discovered a Disconnect/Circuit Breaker that is available up to 150 amp.(http://www.solar-electric.com/mr60ampdccib.html).

What kind of disconnects and fuses are do some of you use?

Thanks,

John
http://villagemountainmission.org/

tons001

Re: DC side switching and overload protection

Attachment not found.I am using one of these. http://www.solar-electric.com/mndc175.html

I also use a couple Blue Sea dual post terminal fuses at the battery. One post feeds the inverter and the other feeds the items remaining 12vdc. http://www.bluesea.com/products/2151/Dual_MRBF_Terminal_Fuse_Block_-_30_to_300A

westbranch

Re: DC side switching and overload protection

I use an E-panel, lots of CB sizes to use in them.

here is the link for the export model

http://www.midnitesolar.com/products.php?menuItem=products&productCat_ID=7&productCatName=E-Panel%20-%20Export

here is one for Outback

http://www.midnitesolar.com/products.php?menuItem=products&productCat_ID=1&productCatName=E-Panel%20-%20Outback

see the list of all E-panels on the left of those links

hth

2manytoyz

Re: DC side switching and overload protection

I'm using the Blue Sea P/N 6006 switches with my system.

Continuous Rating 300A
Intermittent Rating 500A (5 min)
Cranking Rating 10 sec 1500A
Cranking Rating 1 min 775A

http://www.bluesea.com/products/6006



I'm using one switch to disconnect the DC distribution block (lower Amp items), and one of each of the two 1800W inverters.

Each inverter feeds from bus bars via 4/0 wire. Each inverter has its own Class-T fuse: