User`s guide

User’s Guide — 53
Finding Motor Branch-Circuit
Wire Size & Conduit Size —
Same Wire Type & Size
What size THHN copper wire & RMC
conduit are needed to connect a 10 HP
1Ø induction motor to a 115 volt source?
Steps Keystrokes Display
Reset calculator [Set] [x] [On/C] 0.
Set to 1-phase [Set] 1 1 PH
Enter volts 115 [Volts] 115. VOLT
Enter horsepower 10 [HPmotor] 10. HP IND
Enter cond. type 8 [Set] [CondSz] nonE
RMC
Display full load
amps [Amps] 100. FLC A
Find wire size [Set] [WireSz] 0 CU
AWG WIRE SIZE 125%
Find wire ampacity [WireSz] 0 125.0*
WIRE A125%
Find conduit size [CondSz] 1.25 in
RMC COND SIZE
Find total # wires [CondSz] 2. TTL WIRES
Find conduit fill % [CondSz] 24.3
FILL COND %
Find act. fill area [CondSz] 0.3710
FILL TTL WIRE AREA
Find rem. area [CondSz] 0.1021
REM WIRE AREA
NOTE: Display will also show wire size in upper
left when displaying maximum ampacity rating.
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