A 4 mm diameter copper wire with an insulation factor of 75 or 90 degrees C is rated at 65 amps.
It is ok for 200 amps. For a continuous load it should be used up to 70 amps, and for 6 hours per day, 140 amps.
A #8 wire with an insulation rating of 75 or 90 degrees C is rated at 45amps respectively.
I am assuming that this is a one and a half HP motor. To wire a 120V 20A motor the electrical code states that the conductor has to be 125% of the motor's full load amps. This equals 25 amps. There is no wire rated at 25 amps so the next size up is 30 amps. A #10 copper wire with an insulation factor of 60, 75 and 90 degrees C is rated at 30 amps. To carry this to a conclusion This #10 wire should be protected by either 60 amp non time delay fuses or 35 amp time delay fuses or a two pole 50 amp breaker.
The ampacity of a # 10 copper wire with an insulation factor of 90 degrees C is 30 amps. All wire voltage ratings usually drop into two categories 300 volts and 600 volts. Home wiring drops into the 300 volt range and commercial, industrial, drops into the 600 volt range.
12.57
The 4.5 amp version would provide around 35% more strimming power.
A #8 wire with an insulation rating of 75 or 90 degrees C is rated at 45amps respectively.
A 35 sq mm copper wire with an insulation factor of 75 or 90 degrees C is rated at 115 and 120 amps respectively.
#6 awg copper
I am assuming that this is a one and a half HP motor. To wire a 120V 20A motor the electrical code states that the conductor has to be 125% of the motor's full load amps. This equals 25 amps. There is no wire rated at 25 amps so the next size up is 30 amps. A #10 copper wire with an insulation factor of 60, 75 and 90 degrees C is rated at 30 amps. To carry this to a conclusion This #10 wire should be protected by either 60 amp non time delay fuses or 35 amp time delay fuses or a two pole 50 amp breaker.
A #12 copper conductor with a insulation factor of 90 degrees C is rated at 20 amps. For 110 degrees C 35 amps, 125 degrees C 40 amps and for 200 degrees C 40 amps.
The nearest AWG wire size to 50 sq. mm is 1/0. A 1/0 aluminium conductor with an insulation factor of 75 or 90 degrees C is rated at 180 and 205 amps respectively.
The ampacity of a # 10 copper wire with an insulation factor of 90 degrees C is 30 amps. All wire voltage ratings usually drop into two categories 300 volts and 600 volts. Home wiring drops into the 300 volt range and commercial, industrial, drops into the 600 volt range.
Isn't it 35, according to the NEC 310.15(B)(16) Table.
12.57
35% of your gross earnings
20-35 grams per day
35 ampRefrigeratorRun a hot wire to the positive wire on the radiator fan