Auto Cable Sizing Pro

Auto Cable Sizing Pro is a professional engineering design-assist app for LV cable sizing, voltage-drop assessment, protection coordination, PE conductor guidance and practical cable selection.

Built for engineers, consultants, contractors, technicians, students and asset owners, it combines Quick Design with a comprehensive Detailed Design workflow.

QUICK DESIGN

Enter the essential project inputs and obtain a preliminary cable recommendation with controlled assumptions, warnings and engineering checks.

Includes:

• Design-current calculation

• Copper and aluminium cable selection

• Ampacity and voltage-drop checks

• Installation-method selection

• Protection recommendation

• PE conductor guidance

• Parallel cable-set recommendations

• Alternative passing candidates

• Calculation details and warnings

• Find Recommended Fixes

• PDF and JPEG export

DETAILED DESIGN

Review load, route, cable, correction factors, voltage drop, fault duty, protection, PE sizing, technical data, alternatives, warnings and compliance requirements in a structured feeder-sizing workflow.

PRACTICAL PARALLEL CABLE RECOMMENDATIONS

For high-current feeders, the app can evaluate additional parallel cable sets instead of relying only on an unusually large conductor that passes mathematically.

It can help identify a more practical combination of cable size and number of parallel sets while retaining mandatory engineering checks. Equal current sharing, grouping, routing, installation conditions and actual cable availability must still be verified.

FIND RECOMMENDED FIXES

When a design fails or requires review, the app can suggest actions such as:

• Increase cable size

• Increase parallel cable sets

• Review protection coordination

• Review installation or correction factors

• Review cable availability

• Resolve incompatible or incomplete inputs

Recommended fixes are shown for review before being applied. The app does not automatically weaken engineering limits merely to obtain a PASS.

CABLE LOOKUP

Search the controlled cable database by material, family, core arrangement, fire performance, brand, installation method, engineering data quality and approval/listing status.

Review available technical data including current-carrying capacity, resistance, reactance and voltage-drop information.

DAILY CABLE TOOLS

Use dedicated tools for:

• Existing cable assessment

• Maximum permissible load

• Maximum cable length

• Breaker compatibility

• Copper/aluminium comparison

• Short-circuit withstand

PROTECTION ADVISOR

Review preliminary protection requirements and coordination considerations with clear verification boundaries.

TRANSPARENT CALCULATIONS

Calculation traces can show inputs, assumptions, equations, units, substitutions, intermediate results, checks, warnings and the final recommendation.

ENGINEERING STATUS

Results use PASS, FAIL, VERIFY, PRELIMINARY, INCOMPLETE and INVALID so users can distinguish programmed results from items requiring further verification.

MALAYSIA & INTERNATIONAL USE

The app supports Malaysia and International — IEC profiles. Malaysia workflows can assist with local practice while retaining verification requirements for applicable ST, TNB, SIRIM, Malaysian Standards and project conditions. International users can use the IEC-oriented workflow and verify applicable national, utility and manufacturer requirements.

IMPORTANT ENGINEERING NOTICE

Auto Cable Sizing Pro is an engineering design-assist tool. Results are not a substitute for final professional engineering design, statutory compliance, manufacturer verification, project-specific studies or authority approval.

Before construction or procurement, verify project conditions, cable data, protective-device characteristics, installation method, grouping and derating factors, fault levels, clearing times, earthing requirements, utility requirements and applicable standards.

Auto Cable Sizing Pro — practical cable sizing with transparent engineering calculations.