Inverter Disconnect with Pre-Charge
- Thread starter TAS CPA
- Start date
I don't have a separate disconnect for my inverter, but I use a pre-charge circuit on my primary DC disconnect between the batteries and the bus bar. When reconnecting power, I just press the button long enough to see the led's on all my DC stuff start blinking (a few seconds), so I know the invertor capacitors are charged at that point. For this approach, you just want to make sure you don't have any significant loads on the DC side turned on when pre-charging. The pre-charge button and resister are mounted in the little black box under the main switch.
Like the idea of looking for the LED's as confirmation that the pre charging is actively occurring. Toyed with the push button option, but already have the switches in hand so that is where I'll start.
What is your backer material that the equipment is mounted to?
It's a 1/2" resin coated plywood.
Penn Elcom - Film Faced Panels
www.penn-elcom.com
It's really good to work with and has a nice looking finish. I thought it was a little pricey when I bought it back in march, but I think it was cheaper than what standard plywood is running now. I had to drive to houston to get it, couldn't find any in austin area.
Everything except the batteries and invertor are just screwed into the plywood. For the batteries, I fabricated a steel support structure behind the plywood and the inverter bracket uses some rivnuts into the van wall frame. The invertor probably would have been fine just through bolted to the plywood, but the batteries are about 250lbs total and needed structural support.
Is that resin coating heat/fire rated in any way, or just for looks? Sure looks nice! Can't see any discussion on that site of whether it will handle the heat from the components.It's a 1/2" resin coated plywood.
Penn Elcom - Film Faced Panels
It's really good to work with and has a nice looking finish. I thought it was a little pricey when I bought it back in march, but I think it was cheaper than what standard plywood is running now. I had to drive to houston to get it, couldn't find any in austin area.
Everything except the batteries and invertor are just screwed into the plywood. For the batteries, I fabricated a steel support structure behind the plywood and the inverter bracket uses some rivnuts into the van wall frame. The invertor probably would have been fine just through bolted to the plywood, but the batteries are about 250lbs total and needed structural support.
I don't think I've ever seen a rating on it, but the coating is a phenolic resin, which is generally good with the heat. Almost certainly rated higher than the wood behind it.
Phenolic Resin - The Chemical Company
Phenolic resins are a group of the most versatile polymers yet invented. Although they came into existence at the very start of the age of polymers, they continued to be developed into more and more applications. Phenolic resins are a type of synthetic thermosetting resin invented by Dr. Leo...
thechemco.com
Just ordered a sheet. Even if I don't use it for the battery install, will find somewhere to try it out!I don't think I've ever seen a rating on it, but the coating is a phenolic resin, which is generally good with the heat. Almost certainly rated higher than the wood behind it.
Phenolic Resin - The Chemical Company
Phenolic resins are a group of the most versatile polymers yet invented. Although they came into existence at the very start of the age of polymers, they continued to be developed into more and more applications. Phenolic resins are a type of synthetic thermosetting resin invented by Dr. Leo...
Thanks much
charlesrg
New Member
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- Nov 3, 2020
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Thought it was your idea, you just reposted what should be a link for a resource. FilterGuy is the one that deservers the credit.
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