Motor and Air Conditioning calculations

Conductors for a single motor are sized no less than ___ of the motor flc rating.

125%

What is the FLC for a 5hp 230v three phase motor?

15.2 amps, 430.250

What size conductors are required for a 1hp, single phase, 115v motor, terminals rated at 60 degrees C?

16 amps x 125% = 20 amps, 12 awg. 430.248, 310.15(B)(16)

What size branch circuit conductors are required for a 7.5hp, three phase, 230v motor with a nameplate FLA of 20a, rated for five minute service, used for intermittent duty, terminals rated at 75 degrees C?

20amps x 85% (430.22 E)= 17amps. 14 awg conductors

The motor FLA from the motor nameplate is used with table ___ instead of the FLC from the code tables

430.22(E)

When a motor is used for other than continuous duty, the nameplate current rating percentages of table ____ are used for conductor sizing.

430.22(E)

What is the FLC for a 5hp 115V single phase motor?

56 amps, 430.248

Motor FLA ____ to be used to determine conductor ampacity or branch circuit short circuit and ground fault overcurrent protection.

is not permitted

Motor overload protection shall be based on the ___

motor nameplate rating