Calculated Industries 5065 - Manual (Page 55)

50 — ElectriCalc Pro
What overload protection device size is
required for a 460 Volt, 3-phase, 15 HP
induction motor with a nameplate current
rating of 19.2 Amps and a 1.0 service fac-
tor? What is the required overload rating
at 125% (for a 1.15 service factor)?
Steps Keystrokes Display
Clear calculator
o o
0.
Set to 3-phase
S 3
3 PH
Enter Volts
4 6 0 U VOLT 460.
Enter Horsepower
1 5 h
IND 15. HP
Enter nameplate
current
1 9 ¥ 2 A
AMPS 19.2
Find overload size
L
AMPS 22.08 ol
Display % used
L
%FLC 115.
Find 125% load
1 2 5 L AMPS 24. ol
Display % used
L
%FLC 125.
Reset overload
rating and clear
1 1 5 L o
0.
Overload Protection Size