I am wiring a 100 amp panel in my unattached garage approximately 30
What Size Wire For 100 Amp Subpanel. We’ll discuss these issues below. If you consult the wire gauge chart, you see that the #0 wire can handle 150 amps.
From nec 250.122 this requires an #8 cu or #6 al ground wire as a minimum (or 6cu and 4 al if you are really running a 110amp feeder). Web a 100 amp sub panel wiring size requirement is #4 for copper wires and #2 for aluminum wires. Now, you may question what you should use for your wiring installation and what are the advantages and disadvantages of one wire type from another. We’ll discuss these issues below. Web a 100a breaker would require a #8 cu or a #6 al. Main panel at 200 amp. If you are calculating full load then the grounding conductor must take voltage drop into account and rise a full two sizes more just like the current carrying conductors or a #4 cu or #2 al. Want to have a direct burial line 24 inches deep. Load will be lights, fan hot wtervheater on demand for one sink electric wall heater. A lower gauge is generally safer than higher gauges.
This adjusts based on the above factors and environmental changes. Main panel at 200 amp. Want to have a direct burial line 24 inches deep. Load will be lights, fan hot wtervheater on demand for one sink electric wall heater. We’ll discuss these issues below. Your 1awg al is good for a 100 amp feeder (actually 110). If you are calculating full load then the grounding conductor must take voltage drop into account and rise a full two sizes more just like the current carrying conductors or a #4 cu or #2 al. Web sub panel in put building will be 100 amp. So once again take some time and think about what you need. From nec 250.122 this requires an #8 cu or #6 al ground wire as a minimum (or 6cu and 4 al if you are really running a 110amp feeder). No more than 60 amps at one time with all running.
