# How do I determine a Square D Electrical Panel Age **URL:** \ **Category:** Electrical Inspections\ **Created:** [May 27, 2011, 1:26am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646 "2011-05-27T01:26:00Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![rbassett](https://avatars.discourse-cdn.com/v4/letter/r/ea5d25/32.png) [@rbassett](https://forum.nachi.org/u/rbassett)\ **Post date:** [May 27, 2011, 1:26am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/1 "2011-05-27T01:26:00Z")
Tomorrow, I need to let a client’s insurance company know the approximate year his electrical panel was replaced or he will be dropped. His home was built in 1959 and he is sure his panel was replaced about 20 years ago and that appears to be so because of the condition of the breakers and panel. It’s currently a Square D Panel with no replacement permit on file. SQUARE D QO LOAD CENTER MFR. NO. NBA3036SKB1 SERIAL NO. L892514361 STYLE NO. BEB36A BOX CAT NO. QON24M125 Series G1 ![Number Tag1.JPG](https://global.discourse-cdn.com/internachi/original/3X/d/0/d0b960b05b2e2952a7b103bb8bd318182ae73166.jpeg) ![Number Tag1.JPG](https://global.discourse-cdn.com/internachi/original/3X/d/0/d0b960b05b2e2952a7b103bb8bd318182ae73166.jpeg) ![Number Tag1.JPG](https://global.discourse-cdn.com/internachi/original/3X/d/0/d0b960b05b2e2952a7b103bb8bd318182ae73166.jpeg) ![Panel.JPG](https://global.discourse-cdn.com/internachi/original/3X/f/5/f566c51588acb05a95551c20465c9f5c78f0ec14.jpeg) ![Number Tag2.JPG](https://global.discourse-cdn.com/internachi/original/3X/4/4/44f63926125096c1fb1e82cd38f2378d169a7200.jpeg) ---
**Author:** ![bking](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/bking/32/624_2.png) [@bking](https://forum.nachi.org/u/bking)\ **Post date:** [May 27, 2011, 2:18am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/2 "2011-05-27T02:18:22Z")
The breakers might have some date codes on them. That panel looks to be less than 30 yrs to me and 20 is probably close. Why do you have a picture of a fan coil data plate on here? ---
**Author:** ![jpope](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/jpope/32/59425_2.png) [@jpope](https://forum.nachi.org/u/jpope)\ **Post date:** [May 27, 2011, 2:22am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/3 "2011-05-27T02:22:48Z")
Call the manufacturer… ---
**Author:** ![rbassett](https://avatars.discourse-cdn.com/v4/letter/r/ea5d25/32.png) [@rbassett](https://forum.nachi.org/u/rbassett)\ **Post date:** [May 27, 2011, 2:46am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/4 "2011-05-27T02:46:57Z")
I called Square D yesterday and they got several people involved. They said the floating deadfront on the cover was released for production in 1981 so the panel has to be 1981 or newer. I have to redo his 4-point inspection and I’m afraid the 1981 date will still be too old for him to continue insurance with Citizens. I was hoping there would be a simple way like with serial numbers on A/C unites where the L8925xxxx in the serial number would mean something like the 25th week of 1989. ---
**Author:** ![bking](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/bking/32/624_2.png) [@bking](https://forum.nachi.org/u/bking)\ **Post date:** [May 27, 2011, 2:50am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/5 "2011-05-27T02:50:31Z")
What is the deal with Citizens? I don’t think its all about a 20-30 year old panel but rather the age of the house itself. Tell them to ask the insurance company if they would be ok with all new breakers. ---
**Author:** ![rbassett](https://avatars.discourse-cdn.com/v4/letter/r/ea5d25/32.png) [@rbassett](https://forum.nachi.org/u/rbassett)\ **Post date:** [May 27, 2011, 2:56am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/6 "2011-05-27T02:56:29Z")
I did the inspection a month of so ago and while going back though my photos I wasn’t paying enough attention and thought the fan coil photo was part of the panel photos. Thanks, checking the breakers for a date is a good idea. The home is a good distance from here so I may see if the client can get someone to check for a dated on the breakers in the morning. ---
**Author:** ![rbassett](https://avatars.discourse-cdn.com/v4/letter/r/ea5d25/32.png) [@rbassett](https://forum.nachi.org/u/rbassett)\ **Post date:** [May 27, 2011, 1:10pm UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/7 "2011-05-27T13:10:58Z")
Thanks to all for you comments. They were very helpful. This is a great message board. ---
**Author:** ![rmeier2](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rmeier2/32/59909_2.png) [@rmeier2](https://forum.nachi.org/u/rmeier2)\ **Post date:** [May 27, 2011, 1:29pm UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/8 "2011-05-27T13:29:42Z")
The panel certainly doesn’t appear to be from 1959. It has Sq D Visi-Trip® breakers. Not sure when they came into the marketplace but it wasn’t 50+years ago. ---
**Author:** ![lkage](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/lkage/32/347658_2.png) [@lkage](https://forum.nachi.org/u/lkage)\ **Post date:** [May 31, 2011, 1:41am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/9 "2011-05-31T01:41:27Z")
> [@Robert\_Meier](#): > > The panel certainly doesn’t appear to be from 1959. It has Sq D Visi-Trip® breakers. Not sure when they came into the marketplace but it wasn’t 50+years ago. From first post: > [@](#): > > His home was built in 1959 and he is sure his panel was replaced about 20 years ago… ---
**Author:** ![wsiegel](https://avatars.discourse-cdn.com/v4/letter/w/3d9bf3/32.png) [@wsiegel](https://forum.nachi.org/u/wsiegel)\ **Post date:** [May 31, 2011, 1:45am UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/10 "2011-05-31T01:45:47Z")
Did you check with the local building department for a permit history? ---
**Author:** ![evandeven](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/evandeven/32/373798_2.png) [@evandeven](https://forum.nachi.org/u/evandeven)\ **Post date:** [May 31, 2011, 12:10pm UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/11 "2011-05-31T12:10:21Z")
> [@wsiegel](#): > > Did you check with the local building department for a permit history? That would make it too easy…and legal.:mrgreen: I would go with 11 1989. (L 89 in the serial number). [http://static.schneider-electric.us/docs/Electrical%20Distribution/Combination%20Service%20Entrance%20Devices/0110PD9201.pdf](http://static.schneider-electric.us/docs/Electrical%20Distribution/Combination%20Service%20Entrance%20Devices/0110PD9201.pdf) ---
**Author:** ![rmeier2](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/rmeier2/32/59909_2.png) [@rmeier2](https://forum.nachi.org/u/rmeier2)\ **Post date:** [May 31, 2011, 12:24pm UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/12 "2011-05-31T12:24:22Z")
> [@evandeven](#): > > That would make it too easy…and legal.:mrgreen: > > I would go with 11 1989. (L 89 in the serial number). > > [http://static.schneider-electric.us/docs/Electrical%20Distribution/Combination%20Service%20Entrance%20Devices/0110PD9201.pdf](http://static.schneider-electric.us/docs/Electrical%20Distribution/Combination%20Service%20Entrance%20Devices/0110PD9201.pdf) Nice reference. I just checked my Sq D panel and it seems accurate. 🆒 ---
**Author:** ![ccurrins](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/ccurrins/32/225758_2.png) [@ccurrins](https://forum.nachi.org/u/ccurrins)\ **Post date:** [May 31, 2011, 4:44pm UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/13 "2011-05-31T16:44:16Z")
> [@wsiegel](#): > > Did you check with the local building department for a permit history? Original post. > [@](#): > > It’s currently a Square D Panel with no replacement permit on file. ---
**Author:** ![malonso2](https://sea2.discourse-cdn.com/internachi/user_avatar/forum.nachi.org/malonso2/32/376541_2.png) [@malonso2](https://forum.nachi.org/u/malonso2)\ **Post date:** [December 21, 2023, 7:54pm UTC](https://forum.nachi.org/t/how-do-i-determine-a-square-d-electrical-panel-age/59646/14 "2023-12-21T19:54:40Z")
**The interior, box and trim will have individual date codes.** **It will be a 5 digit number located on the blue deadfront label under the Square D logo** … Digits 1-2 = Year. Digits 2-3 = Week.