User Manual

50 — ElectriCalc Pro
Fuse and Circuit Breaker Size
What is the computed dual element
and single element fuse size for a 230
volt, 3-phase, 50 HP induction motor?
What are the Instantaneous Trip and
Inverse Time Circuit Breaker require-
ments?
Steps Keystrokes Display
Reset calculator [On/C] 0.
Enter volts 230 [Volts] 230. VOLT
Enter hp 50 [HPmotor] 50. HP IND
Find full current [Amps] 130. FLC A
Find DE fuse size [DEFuse] 227.5
dE AMPS
Display % used [DEFuse] 175. %FLC
Find SE fuse size [Set] [DEFuse] 390.
SE AMPS
Display % used [DEFuse] 300. %FLC
Find inv. time brkr [InvTime] 325. b2 AMPS
Display % used [InvTime] 250. %FLC
Find ins. trip
breaker sz. [Set] [InvTime] 1,040.
b1 AMPS
Display % used [InvTime] 800. %FLC
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