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480V Fault Calculator & Coordination Toolkit

$49.99Price

480V Selective Coordination Toolkit

Practical protection coordination for small and mid-size industrial facilities

The 480V Selective Coordination Toolkit is a professional Excel-based engineering workbook designed to help industrial facilities validate breaker coordination, estimate available fault current, and reduce nuisance tripping — without requiring a full $15,000–$40,000 coordination study.

This toolkit is ideal for facilities without an in-house protection engineer that still need practical, technically sound coordination validation.

🔹 What This Toolkit Does

  • Calculates 3-phase available fault current at a 480V main

  • Includes transformer-based short-circuit estimation

  • Models feeder impedance (R/X, length, parallel runs)

  • Includes cable size lookup dropdown (Cu & Al)

  • Validates upstream/downstream coordination margins

  • Checks interrupting rating vs available fault current

  • Provides structured coordination test points

  • Flags PASS / FAIL coordination gaps

🔹 Built-In Fault Current Estimator

If available fault current is unknown (common in small plants), the toolkit includes:

  • Transformer kVA input

  • Transformer impedance (%Z)

  • Secondary voltage

  • Optional feeder impedance modeling

  • Cable R/X lookup database

This allows realistic switchboard-level fault current estimation without requiring a full utility study.

🔹 Who This Is For

  • Maintenance Managers

  • Plant Engineers

  • Electrical Supervisors

  • Industrial Facility Owners

Especially valuable for:

  • Manufacturing plants

  • Concrete batch plants

  • Water / wastewater facilities

  • Agricultural processing facilities

🔹 What’s Included

  • 480V Selective Coordination Excel Workbook

  • Transformer-Based Fault Current Calculator

  • Feeder Impedance Modeling Tool

  • Cable R/X Lookup Database

  • Coordination Validation Logic

  • Step-by-Step User Guide (DOCX)

Digital download. No subscription required.

🔹 Important Disclaimer

This toolkit provides preliminary coordination analysis and engineering support. Final protective device settings must be reviewed and approved by a qualified licensed professional engineer.

This product does not replace a full short-circuit and coordination study where required by code or project specifications.

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