User Manual

User’s Guide — 35
Finding Single-Phase Full Load
Current
A 2 HP induction motor operates on 230
volt, single-phase power. What is the full
load current for this motor?
Steps Keystrokes Display
Reset calculator [On/C] 0.
Set to 1-phase [Set] [1] 1 PH
Enter volts 230 [Volts] 230. VOLT
Enter HPind 2 [HPmotor] 2. HP IND
Find full load amps [Amps] 12. FLC A
Finding Motor Wire Size and
Ampacity
Find the wire size required to connect a
continuous run, 3Ø, 3 HP induction
motor into a 230V circuit.
Steps Keystrokes Display
Reset calculator [Set] [x] [On/C] 0.
Enter volts 230 [Volts] 230. VOLT
Enter HPind 3 [HPmotor] 3. HP IND
Find load current [Amps] 9.6 FLC A
Find 125% A size [Set] [WireSz] 14 CU AWG
WIRE SIZE 125%
Find max ampacity [WireSz] 14 20.0
WIRE A125%
NOTE: Display will show wire size in the upper
left when displaying wire ampacity rating.
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