Autoformer test a "back yard" report
Hi all, The equipment: Sola Basic 4000 autoformer PF 0.98 Magnum hybrid 3012 inverter PF corrected 1200 watt water heater 325 watt absorption fridge 13500 BTU Dometic ducted roof air...
Forum Discussion
Hi redracer,
I was rereading this thread to share part of it on facebook. Voltage for the 1887 watts was 96.5. That yields an amperage draw of 19.55 amps or 24% over the 15 amp rating.
I was rereading this thread to share part of it on facebook. Voltage for the 1887 watts was 96.5. That yields an amperage draw of 19.55 amps or 24% over the 15 amp rating.
myredracer wrote:
I wouldn't say 1887 watts is running a 15 amp breaker hard (if at 120 volts). A breaker can run 100 percent of it's rating continuously without tripping since breakers have an inverse time-current characteristic as can be seen in the standard NEMA graph on this web page.. At 10 percent over a 15 amp breaker rating at 120 volts (1980 watts), it could hold for at least 10 min. before the thermal element trips it. (It's the brief momentary current on a motor startup that can cause the "instantaneous" magnetic element to trip.)
