ELEK Cable Pro Web™
Compliant with BS 7671 Standards
Electrical Design and Cable Sizing Software
- Cable Sizing
- Protection Coordination
- Maximum Demand
- Arc Flash Analysis
- LV Network Design
- ChatGPT + Claude AI
*No credit card required - ongoing free plan.
Consulting companies use Cable Pro Web™
Construction companies use Cable Pro Web™
Electrical contracting companies use Cable Pro Web™
Mining companies use Cable Pro Web™
Education and industry associations use Cable Pro Web™
Power utilities use Cable Pro Web™
Manufacturers and suppliers use Cable Pro Web™
What is Cable Pro Web?
ELEK Cable Pro Web is cloud-based electrical design software for electricians, electrical engineers and contractors in the United Kingdom.
Design BS 7671 compliant LV electrical systems with tools for calculating cable sizing, maximum demand, voltage drop/rise, fault loop impedance, protection coordination, arc flash, cable pulling and standards-referenced reports.
Get your free account and run compliant electrical calculations from any device.
Key Features and Capabilities
Low Voltage Electrical Network Design
Automated low-voltage electrical network design from LV/HV supply, to multiple switchboards, loads and capacitor banks.
Outputs calculation reports, equipment schedules and network interactive single-line diagrams.
- Interactive Single-Line Diagrams: Build and visualise custom network diagrams with live editing and AutoCAD® export.
Supply Sizing & Multiple Switchboards: Transformer and generator sizing. Multiple switchboards and final sub-circuits or loads.
Network Voltage Drop and Fault Loop: Automatically sizes cables to meet the network voltage drop limit and calculates the total fault loop.
Fault Level & Maximum Demand Calculations: Performs fault level calculations and upstream maximum demand for switchboards.
Protective Device Coordination and Selection
Perform coordination studies, verify discrimination and choose the right protective devices with confidence.
Time-current curves: Plot time-current curves and check discrimination for cascaded circuit breakers and fuses to match your custom electrical installations.
Huge database of devices: Over 50,000 manufacturer devices. Time-current curves, settings, breaking capacities, part numbers and characteristics are available.
Coordination criteria and Sequence of operation: Coordination criteria ensure standards compliance for current and time-based discrimination.
Generate Commissioning-Ready Reports: Create detailed reports including time-current curves showing discrimination, device details for purchase and settings for commissioning.
Cable Sizing and Maximum Demand Calculations
Easily and instantly selects the minimum safe cable size in full compliance with BS 7671 Standard.
The maximum demand calculator automatically applies the rules for all installation types and balances the loads.
Automatic Cable & Earth Sizing: Automatically selects the minimum compliant active and earth cable sizes. Manually select cable sizes to verify compliance.
Accurate Voltage Drop: Calculate voltage drop and voltage rise for DC, single-phase and three-phase systems.
Automated Maximum Demand: Domestic or living units and non-domestic installations. Automatically applies rules and balances phases.
Fault Loop Impedance Verification: Protective device (MCB, MCCB, ACB or fuse) settings used for calculating earth fault loop impedance.
Compliance Reports and Project Documentation
Create client-ready reports, compliance documentation and cable schedules directly from your electrical design calculations.
Custom-Branded PDF Reports: Generate professional reports containing calculation inputs, results and compliance checks, complete with your company logo.
Standards-Based References: Include table numbers, column references and supporting data from BS 7671 to improve transparency and verification.
Voltage Rise Compliance Reports: Generate dedicated voltage rise reports for multiple cable runs to support installation requirements.
Cable Schedules for Project Delivery: Export cable schedules directly to Excel for procurement, construction documentation and project handover.
AI Electrical Calculations
Get standards-compliant cable sizing results through ChatGPT and Claude’s interfaces, backed by the proven Cable Pro Web engine.
- Natural Language Workflow: Describe your project requirements conversationally without entering parameters manually.
- Verified Calculations: Every calculation is produced by the Cable Pro Web engine, delivering results you can trust on real projects.
Standards-Compliant Results: Receive outputs aligned with the United Kingdom’s BS 7671 Standards, complete with documented calculation details.
- Submission-Ready Reports: Generate professional reports with applied parameters, referenced standards and traceable results.
Start For Free Today
Our Free Plan never expires and no credit card is required. With no software to install, you’re minutes away from easy and accurate calculations.
Explore the BS 7671 compliant features:
A Plan for Every Need
Select from a range of plans. Not ready to decide? Simply choose our Free plan – no credit card required.
Discounts are available for additional users and for annual payments. Prices shown are inclusive of VAT.
- Actual price may vary based on the exchange rate in place between AUD and at the time of payment processing or invoicing.
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Annual Plans (Save 45%)
Monthly Plans
Free
No credit card required
100 cable sizing calls per day
Main Features:
- Cable Sizing Calculator
- Basic Maximum Demand
- Use on any device
Online Documentation & Tutorials
No Commitment
Works on Desktop and Mobile
Essential
500 cable sizing calls per day
Main Features:
- Advanced Cable Sizing
- Basic Maximum Demand
- ChatGPT + Claude AI
- Use on any device
Cable Sizing Includes:
Auto-size or manual. 1ph, 3ph, DC, 2ph. Cu/flex, Al/flex conductors. Accurate voltage drop/rise. Fault loop impedance check. Correction factors. Protective devices. Conduit sizing. Short-circuit rating. Unbalanced voltage drop (Premium plan or above). Reports with references.
Live Chat with Engineering Support
No Contracts, Cancel Anytime
Works on Desktop and Mobile
Premium
50% discount on additional seats
1500 cable sizing calls per day
Main Features:
- Advanced Cable Sizing & Harmonics Analysis
- Auto Maximum Demand
- Cable Schedule Report & Cable Sizing App (Excel)
- Voltage Rise Report
- Protection Coordination & Manufacturer Devices
- Cable Pulling Calculator
- Arc Flash Calculator
- ChatGPT + Claude AI
- Use on any device
Maximum demand Includes:
Domestic or living units and non-domestic installations. Automatically applies rules and balances phases.
Live Chat with Engineering Support
No Contracts, Cancel Anytime
Works on Desktop and Mobile
Professional
50% discount on additional seats
5000 cable sizing calls per day
Main Features:
- Advanced Cable Sizing & Harmonics Analysis
- Auto Maximum Demand
- Cable Schedule Report & Cable Sizing App (Excel)
- Voltage Rise Report
- Protection Coordination & Manufacturer Devices
- Cable Pulling Calculator
- Arc Flash Calculator
- British Standards Access
- LV Network Calculator
- ChatGPT + Claude AI
- Use on any device
LV Network Calculator Includes:
Electrical network calculations with multiple switchboards, Interactive Single-Line Diagrams, Transformers and generators, Fault level calculations, Protection coordination, Arc flash, Power factor correction, AutoCAD design export.
Live Chat with Engineering Support
No Contracts, Cancel Anytime
Works on Desktop and Mobile
Start For Free Today
Our Free Plan never expires and no credit card is required. With no software to install, you’re minutes away from easy and accurate calculations.
Frequently Asked Questions
Yes, ELEK Cable Pro Web includes a dedicated version built specifically for the United Kingdom, and performs electrical design and cable sizing calculations in accordance with BS 7671 (IET Wiring Regulations).
ELEK Cable Pro Web supports several international standards in the same software, selected at login:
Australian and New Zealand Standard: AS/NZS 3008 and AS/NZS 3000.
British Standard: BS 7671.
International Standard: IEC 60364.
United States Standard: NEC (NFPA 70)
Yes, you can get started in two ways:
Free account: Requires no credit card and gives you immediate access to basic wire sizing calculations.
Free 14-day trial: For engineers and electricians who want to evaluate the full feature set of our paid plans: Essential, Premium and Professional.
You can access ELEK Cable Pro Web via any device (desktop, laptop, tablet, mobile) with access to the internet and a web browser. The app is optimised for running on Google Chrome and Microsoft Edge.
ELEK Cable Pro Web is fully-responsive and adapts to any device screen including desktop, tablet or mobile device. Simply login on any device from anywhere via your web browser.
Multiple users can share a login however only one user can be logged in at a time. If you’d like to share an account then you can create a generic username for example “YourCompanyName”. Contact us if you’d like assistance to do this.
You will be automatically logged out of your office computer so you can use the software right away on your mobile.
Yes, your calculations and projects are securely stored in the cloud and are linked to your private account. Storage limits depend on your subscription plan. Each plan includes a specific amount of cloud storage, and you can upgrade anytime to increase capacity. You can also archive your projects and calculations as needed.
ELEK Cable Pro Web is supported by a team of electrical engineers who understand the work you are doing. Support is available via live chat directly inside the application on paid plans, and by email for all users.
The ChatGPT and Claude AI interface doesn’t do the calculation; the ELEK Cable Pro Web engine does.
The AI handles the conversation; every number is generated by the same deterministic calculation engine that ELEK Cable Pro Web users rely on. Results in chat are identical to results in ELEK Cable Pro Web, verified field-by-field.
Yes, ELEK Cable Pro Web is suitable for residential electrical installations and automatically applies the maximum demand requirements of BS 7671 for dwelling units. Single-phase loads are automatically balanced across phases and included in all compliance calculations and reports, helping ensure accurate and compliant residential designs.
Yes, ELEK Cable Pro Web is suitable for commercial and industrial electrical installations and performs cable sizing calculations in accordance with BS 7671. The software supports complex electrical systems with multiple switchboards, large loads, and detailed compliance reporting, making it suitable for projects ranging from small commercial developments to large industrial facilities.
Expert Support and Resources
Our software is designed to be simple and intuitive, but if you need a helping hand, we have a support team and range of online resources to help get you get up to speed quickly.
First Class Support
Our technical team is on-hand to assist you with any questions you have about ELEK software.
Step-by-Step Tutorials
Dive into our library of tutorials to expand your skills and get more from Cable Pro Web.
Technical Resources
Broaden your knowledge with our range of videos and in-depth articles on a wide range of topics.
Start For Free Today
Our Free Plan never expires and no credit card is required. With no software to install, you’re minutes away from easy and accurate calculations.
About ELEK Software
We're Here For You
ELEK is an electrical software company founded in 2009.
We provide software solutions to the electrical design industry. Our vision is to provide the world’s best and most innovative electrical software for engineers and electrical contractors.
Our software is developed and supported by an experienced team from our head office.