Electrical Software

Electrical Software

Electrical Software

Software for electricians and electrical contractors.
New electrical software from Pro Certs Software for PC, MAC, Mobile and Tablets.

A user friendly electrical software for Electrical Contractors & Engineers. Cable size pro calculator, volt drop calculators and electrical calculations. Produce electrical circuit cable size calculations in seconds, select and calculate cable sizes, calculate volt drop, kVA, earthing, bonding and cpc sizes and max Zs values. Easily select and set protective devices and options from the dropdown lists. Also includes a list of handy reference charts.

Cable Calculator

Calculate cable sizes for swa, twin & earth and singles up to 400mm with this handy cable size calculator. The cable calculator calculates the cable size taking in to account of volt drop, load, protective device, installation method, ambient temperature and max Zs value. Select from the pre set options for a quick and easy cable calc with the pro cable calc.

Volt Drop Calculator

Calculate volt drop for swa, twin & earth and single insulated cables. Selected your cable type drop the drop down list, choose your cable size and input the load, voltage and length of cable to calculate the volt drop. A volt drop calculator for A.C. radial circuits.

Adiabatic Equation

An easy to use adiabatic equation calculator for calculating the minimum cpc earth size. Select from the options in the drop down lists, auto sets the selected cable k value, it couldn’t be easier.

Main Earth Size Calculator

Calculate the main earth size by selecting the earthing system, type of earthing conductor, installation method and hit calculate! Job Done.

Electrical Calculators

This electrical software also includes many useful electrical calculators such as:

  • kVA Calculator
  • Watts Amps Volts Calculator
  • Max Zs Value Calculator
  • Volt Drop Calculator
  • Cable Size Calculator
  • Earthing & Bonding Sizing Calculator
  • Adiabatic Equation
  • R1+R2 Zs Calculator
  • Convert ring circuits end to end r1+r2 reading to R1+R2 (figure of four calculator)


Electrical Charts

The current version of this software ( V.29/03/2014) includes many electrical reference charts for easy look up of installation methods, bathroom zones, swa cleat size chart, swa gland size chart, EICR Electrical Installation Condition Report example observations and codes, EICR frequency of inspections chart, SPD surge protection, RCD trip times and much more….

System Requirements

This electrical software will be available as a free update to our current electrical app “Electrical Tools & Reference” which is available on iPhone, iPad, Android, Tablets, Mobile, Windows Phone, Amazon Apps and Google Chrome Apps. The PC version of this electrical software will currently works in any web browser including Windows PC & MAC.

Electrical Software Download

You can demo our current free electrical software version of this software for PC, MAC & Mobile here: www.electrician-apps.com/apps/Project1
For mobile apps click on the app store buttons on the right hand side for our selection of electrical software for mobile or tablet.

Electrical Software Demo

For further information on this electrical software visit http://www.procertssoftware.com/electrical-software


App of the Month by Voltimum

App of the Month by Voltimum

We are delighted to announce that our app Max Zs Values App for Android, iPhone and Windows Phone made it to the app of the month for May 2012 at voltimum.

Max Zs Values

Max Zs Values for iPhone, iPad, Android and Windows Phone 7

May’s App of the Month – Max Zs Values by Pro Certs Software

This App allows you to calculate maximum permitted Zs values (earth loop impedance) as per BS7671, and it also includes temperature adjusted values.

Price: £0.70 – £1.99

Platform: iPhone / Android / Windows Phone

Link to download the App:

Click here to download Max Zs Values for iPhone / iPad

Click here to download Max Zs Values for Android

Click here to download Max Zs Values for Windows Phone


Using the picker wheel select the protective device (fuse’s, MCB’s, RCBO’s) and device rating to calculate the maximum permitted Zs value for your selected device.

Results calculate:

  • BS7671 Amendment 1 2011 values
  • BS EN device’s
  • Fuse’s
  • MCB’s
  • RCBO’s
  • 100% values
  • 80% values
  • 0.4 second disconnection times
  • 0.2 second disconnection times
  • 5 second disconnection times

http://electrician-apps.com/app/max-zs-values  for iPhone, iPad, Android & Windows Phone 7

17th Edition Zs Values

Max Zs Values App for Android

Max Zs Values App for Android

Max Zs Values for AndroidView in Android Market

Calculates maximum permitted Zs values to BS7671 for BS EN protective devices MCB’s, MCCB’s, RCBO’s, Fuses, manufacturer specific values, RCD values in TT earthing systems, REC Ze values with 100% and 80% temperature adjusted values.


    • 100% values
    • 80% temperature adjusted values
    • MCB’s
    • RCBO’s
    • RCD’s
    • Fuses
    • Manufacturer specific values
    • REC Ze values
    • Uo 55V values
    • Uo 63.2V values
    • RCD values in TT earthing systems

Follow us on twitter (ProCerts) or facebook (Electrical Apps by Pro Certs Software) to keep up to date with our latest app developments, news and special offers.


Max Zs Values for Windows Phone 7

Max Zs Values for Windows Phone 7

Zs Values - Earth Loop Impedance ValuesMax Zs Values

Max Zs Values

Calculate maximum zs values / earth loop impedance values with the click of a button.


  • 100% values
  • 80% values
  • 0.2 seconds disconnection times
  • 0.4 seconds disconnection times
  • 5 seconds disconnection times
  • Hints displayed when certian devices are selected
  • Help page
  • Info page
  • Email us directly from the info page of the app
  • Share


28th November 2011