The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Parking lot pole light swap....
by gfretwell
Yesterday at 11:04 PM
International Wire Colour Codes
by Tjia1981
Yesterday at 12:08 PM
Son of Sparky
by HotLine1
10/20/16 07:43 PM
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 7
ghost307 6
renosteinke 6
Potseal 4
Who's Online
0 registered (), 221 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#58177 - 11/01/05 03:10 PM Smallest 3 phase panel
maintenanceguy Offline

Registered: 12/02/01
Posts: 303
Loc: Southern NJ, USA
We're building alot of small computer server rooms in all fo the schools in our district.

Each of these is nearly identical and needs a specific number of 120 and 208V recepticles. We've only done a couple so far and pulled each circuit from nearby panels but some weren't all that nearby.

With more than a dozen to go, I got the brilliant idea of installing a small subpanel in each server room. this means pulling less wire and gives easy room to expand in the future.

I need a small three phase electrical panel. The ideal panel would be 60A with 6 breaker positions but something a little larger would work. I'm not so concerned about size (although in some of these closets it is a problem). I'm mostly concerned with capacity. I don't have an available 200A near some of these locations.

The smallest panel I've seen is a 100A 24 position - Much more than I need.

Anybody know of a smaller one?

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#58178 - 11/01/05 03:56 PM Re: Smallest 3 phase panel
Ron Offline

Registered: 03/13/02
Posts: 577
Loc: White Plains, NY
How about buying the 100A and replacing the main with a 60A that you buy separately?

#58179 - 11/01/05 04:58 PM Re: Smallest 3 phase panel
HotLine1 Offline


Registered: 04/03/02
Posts: 6792
Loc: Brick, NJ USA
Square d
QO403L60NS; 3 CIRC, 60 AMP, MLO
QO312L125G; 12 CIRC, 125 AMP, MLO

Both are main lug only panels.


#58180 - 11/01/05 09:03 PM Re: Smallest 3 phase panel
PCBelarge Offline

Registered: 06/08/03
Posts: 657
Loc: Dobbs Ferry, NY, USA
Why does he need a main. Use the 100 main lug panel and supply it with whatever size overcurrent device ahead of it, as long as the device is not more than 100 amps.
Pierre Belarge


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals