Single Phase Sub Panel From 3 Phase Power Supply - Electrical - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Display Modes
Old 10-30-2011, 03:48 AM   #1
Join Date: Oct 2011
Posts: 1
Rewards Points: 10

Single Phase Sub Panel from 3 Phase Power supply

I need to know if a Single Phase Sub Panel can be run from a 3 Phase Power supply? And can a Stiebel Eltron electric water heater be installed based on the power specifications below:
I want to install a Stiebel Eltron Tankless Electric water heater purchased in the U.S & install in a villa in Phuket Thailand (whole house tankless electric water heaters are not available in Thailand, they only sell point of use electric water heaters).
My villa electricity meter has the following rating:
3 Phase/4 wire (3x220/380V) 50hz 15(45)A.
Electrical specifications of the Stiebel Eltron electric water heater:
3xSingle Phase, 208/240V, 21.6/28.8Watts, 3x35/40A, Min circuit breaker size 3x50A, wire size 3x8.

The Quan


The Quan is offline   Reply With Quote
Old 10-30-2011, 07:50 AM   #2
Electrical Contractor
kbsparky's Avatar
Join Date: Sep 2008
Location: Delmarva
Posts: 3,368
Rewards Points: 2,000

Single Phase Sub Panel from 3 Phase Power supply

It would work provided you ran a neutral for each circuit HOWEVER, you do not appear to have enough capacity in your main panel to operate such a device.



Life is uncertain -- eat dessert first!!
kbsparky 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
hELP! Amperage needed for 220V motors 1488rob Electrical 36 01-28-2014 05:44 PM
new sub panel BlueBSH Electrical 11 01-22-2012 09:28 AM
Multiple Panel Question theatretch85 Electrical 5 12-12-2009 06:26 AM
How to power a 120/240 volt 3 phase oven in a building with 120/240 volt single phase wantsomegetsome Electrical 9 05-04-2009 11:49 AM
Single to 3 phase invertors/converters bantanic Electrical 6 02-09-2007 10:20 AM

Top of Page | View New Posts