ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 255 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 2 1 2
Joined: Jun 2004
Posts: 1,273
T
Member
With such items as instant hot water heaters booming in the market place the industry needs to produce a reasonably priced disconnecting means.

I'd favor some wild variant of the A/C disconnect. You know... The one that is as simple as can be -- a variant of a fuse holder.


Tesla
Stay up to Code with the Latest NEC:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

Joined: Feb 2002
Posts: 2,233
H
Member
I think I posted a question about this problem before. I came across those instant hot water heaters that Tesla is talking about. In my case there was a sub panel right next to the heater and there was three 2 pole breakers for the unit. The EC marked the panel and the heater very clearly stating that there is more than 1 feed to the piece of equipment. Also the sub panel was in reach of the heater and all breaker were also marked.

Joined: Jul 2004
Posts: 9,923
Likes: 32
G
Member
If you have a local sub panel, why not just get one with a main breaker and label it as the disconnect?


Greg Fretwell
Joined: Feb 2002
Posts: 2,233
H
Member
That is because the EC will have to buy a service panel with main breaker and the homeowner wants the job done for less! Or else the other EC will bid only a sub panel with 3 breakers instead of main panel and 4 breakers. smile



Joined: Jul 2004
Posts: 9,923
Likes: 32
G
Member
I was thinking more like an 8 slot panel with a back fed main.
They are not that expensive and we still need to have a code complying installation, no matter what.


Greg Fretwell
Page 2 of 2 1 2

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5