USA Power and Voltages.
What are the standard voltages for households in USA + Canada.
I've heard that it's either 110, 115 or 120 Volts Single Phase.
And using the "Dual Voltage System" heavier loads can be 220, 230 or 240 Volts.
220 -230 - 240 across 2 Legs ( Phases )
Centre Tapped Transformer gets
110 - 115 -120
But is it 110 or 120 ?
I have an Air Conditioning Unit, that comes in 4 Models
OK this states 120 Volts which would be 1 Leg, 2 Legs 240 Volts.
But it appears that they have used 208 Volts previously.
Is 208 Volts and 277 Volts part of the 3 Phase System. ?
Residual Current Devices,
Are they used in USA ?
Residual Current Devices with Overload Protection.
Are they used in the USA ?
Can you get a GFCI or CFP with Overload Protection
Ground Fault Circuit Interrupter
Ground Fault Protector
What's the difference between a Earth Leakage Circuit Breaker
and a GFCI or GFP