EcoRenovator  

Go Back   EcoRenovator > Improvements > Appliances & Gadgets
Advanced Search
 


Blog 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 09-14-16, 09:30 PM   #1
philb
Apprentice EcoRenovator
 
Join Date: Nov 2010
Location: Oklahoma City
Posts: 155
Thanks: 58
Thanked 17 Times in 14 Posts
Default Jelly Jar surge protector

Several posts lately have mentioned using mov's for surge and lightning protection on mains voltage.
I thought I'd post my version that's been in use for a while.
The jelly jar is used because it's cheap, it has excellent insulation properties and mov's can have meltdowns when subjected to high amps and voltages.

I put the mov's on half of a 50 cent 5x7 mm board from ebay. The board will hold 2 rows of four mov's.
The wires are 10 awg because I had some short pieces of USE-2 wire after rewiring my solar panels for a lower voltage. 12 AWG THHN wire is my usual choice. The mov legs are wrapped around the 10 awg wire and then soldered. The manufacturer suggest using a heat sink between the mov and the soldering. Apparently excessive heat will destroy them. Imagine that!

The photos show one side of both rows soldered together to a common green taped ground wire. The other two wires can go to a hot wire and neutral for 120 volt circuits. For 240 volt split phase, the wires both go to hot.

The metal lid is drilled and fitted with a 1/2 inch emt screw connection. Then I fill it with silicon. The metal ring and lid
are painted for outdoor use.
I like to use 150 volt RMS version on mains voltage and 84 volts DC version for my 65 volt solar panels.

Keep in mind this device is not UL listed. Insurance companies might frown on them. I don't know. I'd rather explain this to them than explain how one of my building burned.

philb is offline   Reply With Quote
 


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:46 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design