Fuse and Circuit Breaker Size. Calculated Industries ElectriCalc Pro 5060, ElectriCalc Pro

Below you will find brief information for ElectriCalc Pro 5060. The ElectriCalc Pro 5060 makes quick work of complicated electrical calculations, helping you meet NEC requirements and complete your projects safely and efficiently. It features a user-friendly interface with easy-to-understand labels, and it’s pre-programmed with the 2002 National Electrical Code. It also includes the ability to update for future NEC revisions, giving you a tool designed to keep up with the times.

5060-UG-B-Composite 4/4/03 12:37 PM Page 52

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 requirements?

Steps Keystrokes Display

Reset calculator [On/C]

Enter volts 230 [Volts]

Enter hp 50 [HPmotor] 50. HP IND

Find full current [Amps] 130. FLC A

Find DE fuse size [DEFuse]

230. VOLT

Display % used [DEFuse]

Find SE fuse size [Set] [DEFuse]

227.5

dE AMPS

175. %FLC

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]

Display % used [InvTime]

1,040.

b1 AMPS

800. %FLC

50 — ElectriCalc Pro

Key Features

NEC-Updateable
Solves for volts, amps, VA, watts, kVA, kW, PF%, EFF%, and DC resistance
Determines copper or aluminum wire sizes
Calculates parallel and derated wire sizes
Calculates voltage drop wire sizes, % and actual voltage drops
Finds grounding conductors sizes
Calculates motor full-load amps
Calculates overload protection sizes
Calculates NEMA starter sizes
Calculates conduit sizes

Frequently Answers and Questions

How do I install the NEC update chip?

1) Purchase the NEC Update from CI 2) Once you receive the NEC Update chip, you need to install it in your ElectriCalc Pro: a) Turn calculator off. b) Remove the battery. c) Using a screwdriver, pop out the square tab located in the middle section on the back of your calculator. d) Replace it with the new Update tab by inserting it into the slot. e) Replace the battery door. f) Turn calculator on. Your calculator is now updated and ready to use.

How do I set the ambient temperature?

Press [Set] [2] and then enter the desired temperature using the number keys. The units can be displayed in Celsius (°C) or Fahrenheit (°F) by using the preference function ([Set][÷]).

How do I calculate the voltage drop?

Enter the phase, volts, amps, wire material, voltage drop wire size and length of run. The calculator determines resistance and then the voltage reduction. Voltage drop can be displayed as volts dropped, or as a percent reduction of potential load.