Can I load a 125 amp panel to 120 amps?

[dwellins]

Can I use a 125 amp rated main lug panel for a calculated load of 120 continous amp? I rememeber something about only being able to load a panel to 80% of its capacity? If this is correct, what article? Thank you

 

[jumper]

215.3 Overcurrent Protection. Feeders shall be protected
against overcurrent in accordance with the provisions of
Part I of Article 240. Where a feeder supplies continuous
loads or any combination of continuous and noncontinuous
loads, the rating of the overcurrent device shall not be less
than the noncontinuous load plus 125 percent of the continuous
load.
III. Panelboards
408.30 General. All panelboards shall have a rating not
less than the minimum feeder capacity required for the load
calculated in accordance with Part III, IV, or V of Article
220, as applicable.
Informational Note: See 110.22 for additional requirements.
408.36 Overcurrent Protection. In addition to the requirement
of 408.30, a panelboard shall be protected by an
overcurrent protective device having a rating not greater
than that of the panelboard. This overcurrent protective device
shall be located within or at any point on the supply
side of the panelboard.

 

[dwellins]

In regards to continous load on the circuit breaker...these are 3 pool heat pumps (RLA 37a ea max 50) do i need to add all the RLAs then add 125% (37x3x1.25=139a) or just 125% of one heat pump and add the remaining RLA (37x 1.25+37+37=120.25) such as feeder calaculations?

I was using art 430 for feeders and OCPD

 

[Dennis Alwon]

I believe it would be 125% of the largest unit then add all 3 units-- 37 * 2 + (125% * 37) or 37* 3 + (25% * 37)

 

[mbeatty]

I believe it would be 125% of the largest unit then add all 3 units-- 37 * 2 + (125% * 37) or 37* 3 + (25% * 37)

I go with Dennis on this.
Mark