User`s guide

Pocket RefeRence Guide — 21
MOTOR FUNCTIONS
The ElectriCalc Pro can calculate
the Full-Load Current (Amps) of a
motor, based on Phase, Voltage and
Motor (Synchronous, Induction, or
DC) Horsepower using NEC Tables
430.247, 430.248 and 430.250.
Finding Full-Load Current
A 2 HP Induction motor operates on
230 Volt, Single-Phase power. What is
the Full-Load Current for this motor?
KEYSTROKE DISPLAY
 0.
1. Set to 1-Phase:
 (1Ø) 1 Ø 1 PH
2. Enter Volts:
 VOLT 230.
3. Enter HP:
 IND* 2. HP
* Press  until IND is displayed in the
upper left area of the display.
4. Find Full-Load Current:
 FLC 12. A
Finding Motor Wire Size
Find the Wire Size required to connect
a continuous run, 3Ø, 10 HP Induction
motor into a 230V circuit.