today i was working in a print shop adding a couple of circuits for them. while looking around to find the best place to pull power from i found a 125A MDP 120/208 panel (fed from a meter) that seemed odd to me. the accumulated loads, (100A heat press, 40A flash table, and 2- 30A compressors) sometime run simultaneously. i didn't look at the name plates on the various machines, but even if all the breakers were loaded at 70% there would be a 140A load on a 125A panel. the main has never tripped in 18 months. is this installation ok? i wouldn't be as concerned if the loads were not sometime continous?
max current for 125A panel?
- Thread starter lat1
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Buck Parrish
Senior Member
- Location
- NC & IN
Well obviously every place is different. Esspecially with the 100 amp press. Perhaps the name plate was considering the most it would pull. But...
I wired a dentist office on a 100 amp 3 phase panel.
3 phase has a better load capacity then single phase.
125 is even better as 100 amp 3 phase seems to be common in small retail stores.
I wired a dentist office on a 100 amp 3 phase panel.
3 phase has a better load capacity then single phase.
125 is even better as 100 amp 3 phase seems to be common in small retail stores.
Last edited:
kwired
Electron manager
- Location
- NE Nebraska
was the loads you mentioned single or three phase
if single phase there may be no problem with the install.
if single phase there may be no problem with the install.
- Location
- Wisconsin
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- PE (Retired) - Power Systems
You must look at the loads themselves, not the breakers feeding them.
Until that is done you have no hope of determing if the installation is correct.
- Location
- Massachusetts
I agree with Jim 100%.
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