User Manual

User’s Guide — 39
Wire Sizing Based on
Material Type
Find the wire size for a 75°C copper
wire carrying a 3Ø load of 265 amps.
What is the equivalent aluminum wire
size?
Steps Keystrokes Display
Reset calculator [Set] [x] [On/C] 0.
Set to 75°C [Set] [7] 3Ø 75 Cu 0.
Enter amps 265 [Amps] 265. AMPS
Find wire size [WireSz] 300 CU
AWG WIRE SIZE
Change to alum. [Set] [4] 400 AL
AWG WIRE SIZE
Sizing Parallel Conductors
What size 60°C insulated copper wire is
required for a single conductor carrying
a 500 amp load in a Free Air environ-
ment (30°C amb. temp.)? What size for
2 parallel conductors? For 3 conduc-
tors?
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