ElectricalOM Software Free Version

Electrical Software for Design & Calculations

The Ideal Electrical Design Software

  • Fully compliant with BS 7671:2018 - 18th Edition
  • Harmonized with IEC 60364
  • Interactive & friendly user interface
  • Cable sizing calculations
  • Busbar trunking system sizing
  • Voltage drop calculations
  • Detailed and comprehensive calculation reports
  • Protective devices discrimination study
  • Automatically layout schematics
  • CAD-based drawing mode
  • Exports reports in pdf and schematics in Dxf/Dwg
  • Add-on CAD Plan Design module available
  • BIM compatibility with Autodesk Revit ®
  • Remote support and updates through the internet

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Trusted by Many


ElectricalOM is a Powerful, Fast & Accurate software tool for Domestic, Commercial and Industrial Low Voltage Electrical Design. Using ElectricalOM, the user can model the electrical installation quickly and easily by performing simple tasks while the software acts interactively performing automatic calculations, checks and creates automatically all schematic diagrams.

The calculations and checks performed by ElectricalOM are based on the latest regulations and publications by IET.

Some of the great features of ElectricalOM are listed below


ElectricalOM is a powerful electrical design software that performs all the necessary calculations and checks in accordance with BS7671 (Harmonized with IEC 60364 and HD 384).

Fast and Friendly

The electrical network is modelled as a tree structure giving to the user the ability to copy & paste, drag & drop circuits easily in the same or other projects.


Various calculation reports are available. Also a bill of quantities report can be created with a user defined pricelist of the materials to estimate the cost of the electrical installation modelled.

Extensive Database & Support

The electrical designer can choose from a large database of protective devices, cables and final circuits. Automatic updates through the internet and remote TeamViewer support are supported.


During designing, the distribution boards are automatically arranged for maximum productivity. The user can modify the position and the orientation of each distribution circuit by moving it or applying rotations.

Interactive Environment

During the electrical design ElectricalOM acts interactively and indicates to the user useful information and calculations.

Plan Design Add-on

Create electrical plan design drawings and collect from them information for the circuit calculations such as cable lengths and installation points per circuit.

Protective devices discrimination study

ElectricalOM checks all the protective devices in the electrical installation and warns the engineer about problems discovered during overcurrent and earth fault discrimination study. This is done using the devices Time-Current curves or manufacturer's specific data.