Electrical Tools

Power, fire alarm, ELV, cable sizing, unit conversion, transformers, generators, CCTV, UPS, access control, and loop/battery planning.

Cable Sizing & Voltage Drop Planner

Check current, selected cable ampacity, voltage drop, and minimum cable guidance.

Electrical · Electrical Power

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Electrical Load Schedule Builder

Build connected load, demand load, kVA, spare capacity, and panel-size guidance.

Electrical · Electrical Power

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Transformer Sizing & Spare Capacity Calculator

Calculate required transformer kVA, standard size, loading percentage, and spare margin.

Electrical · Electrical Power

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Generator Sizing & Starting Load Planner

Estimate generator kVA using running load, starting load, diversity, and spare margin.

Electrical · Electrical Power

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Power Factor Correction & Payback Calculator

Calculate capacitor kVAR, current reduction, transformer relief, and simple payback.

Electrical · Electrical Power

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Fire Alarm Battery Backup Calculator

Calculate standby Ah, alarm Ah, derating, spare margin, and recommended battery size.

Electrical · Fire Alarm

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Fire Alarm Loop Load Calculator

Check device count, loop current, capacity usage, address usage, and spare margin.

Electrical · Fire Alarm

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Fire Alarm DIP Switch Calculator

Interactive DIP switch addressing for ZETA, Notifier, and Simplex-style fire alarm devices.

Electrical · Fire Alarm

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CCTV Storage Calculator

Calculate CCTV retention storage by camera count, bitrate, recording hours, RAID, and spare.

Electrical · ELV

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Data Rack Power & UPS Calculator

Estimate rack load, UPS kVA, heat output, and battery energy requirement.

Electrical · ELV

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Access Control Door Hardware Planner

Build controller, reader, lock, REX, contact, PSU, and battery quantities.

Electrical · ELV

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Conduit Fill Calculator

Calculate conduit fill percentage for cable and raceway planning.

Electrical · Electrical Power

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Short Circuit Current Calculator

Estimate transformer secondary fault current for breaker duty checks.

Electrical · Electrical Power

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Lighting Lux Calculator

Estimate required lumens and luminaire count from lux target and area.

Electrical · Electrical Power

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Breaker Size Calculator

Estimate breaker rating from load current, voltage, phase, and safety margin.

Electrical · Electrical Power

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kVA to Amps Calculator

Convert kVA to amps for single-phase and three-phase electrical loads.

Electrical · Electrical Power

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Ampacity Derating Calculator

Estimate derated cable ampacity from temperature, grouping, and installation factors.

Electrical · Electrical Power

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MEP Unit Converter

Convert common MEP units for airflow, water flow, pressure, power, cooling, and temperature.

Electrical · Electrical Power

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