Fuse And Circuit Breaker Size - Calculated Industries ElectriCalc Pro 5060 User Manual

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
Reset calculator
Enter volts
Enter hp
Find full current
Find DE fuse size
Display % used
Find SE fuse size
Display % used
Find inv. time brkr [InvTime]
Display % used
Find ins. trip
breaker sz.
Display % used
50 — ElectriCalc Pro
Keystrokes
[On/C]
230 [Volts]
50 [HPmotor]
[Amps]
[DEFuse]
[DEFuse]
[Set] [DEFuse]
[DEFuse]
[InvTime]
[Set] [InvTime]
[InvTime]
Display
230. VOLT
50. HP IND
130. FLC A
227.5
dE AMPS
175. %FLC
SE AMPS
300. %FLC
325. b2 AMPS
250. %FLC
1,040.
b1 AMPS
800. %FLC
0.
390.