sub panel

[derrick]

I have a 120/240v 200amp main panel. I need to add a 120/240v 100 amp sub panel from the main. I want to used one the spaces for the breaker in the main as my disconnect for the sub panel.

 

[charlie b]

May I ask what you mean by showing "electo-mechanical" in your profile? Also, is this a project you are planning to perform at your own home, or is it a paid assignment for a client?

 

[wbalsam1]

I have a 120/240v 200amp main panel. I need to add a 120/240v 100 amp sub panel from the main. I want to used one the spaces for the breaker in the main as my disconnect for the sub panel.

Welcome to the forum. Please elaborate a bit more on what it is you're trying to do.

 

[derrick]

We need to add a sub panel for a new computer room. The existing design of the room will trip the breakers. As it stands right now the servers are rated at 10 amp, and there are 5 of them and a stand alone a/c unit rated at 12 amp. We also have to add the isolated grounds for the new room. What a mean by electro-mechanic I wear several hats here at the plant.

 

[infinity]

Short answer is you can use a MLO (main lug only) panel for a subpanel if the main panel and the subpanel are within the same building.
Are you using a 120/240 volt system for a computer room?

Welcome to the forum.

 

[derrick]

yes both panels are in the same building. yes the it 120/240 for the computer room.

 

[danickstr]

for safety, you can also put a 100 amp breaker at either end. Side feed, like a regular type.