Cable Sizing & Voltage Drop Planner
Check current, selected cable ampacity, voltage drop, and minimum cable guidance.
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Electrical MEP Tools
Power, fire alarm, ELV, cable sizing, transformers, generators, CCTV, UPS, access control, loop/battery planning, and DIP switch addressing.
Electrical Power
Cable, load schedule, transformer, generator, and power factor tools.
Electrical Load Schedule Builder
Build connected load, demand load, kVA, spare capacity, and panel-size guidance.
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Transformer Sizing & Spare Capacity Calculator
Calculate required transformer kVA, standard size, loading percentage, and spare margin.
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Generator Sizing & Starting Load Planner
Estimate generator kVA using running load, starting load, diversity, and spare margin.
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Power Factor Correction & Payback Calculator
Calculate capacitor kVAR, current reduction, transformer relief, and simple payback.
Open ToolFire Alarm
Battery backup, loop-load, and DIP switch addressing tools for fire alarm systems.
Fire Alarm Battery Backup Calculator
Calculate standby Ah, alarm Ah, derating, spare margin, and recommended battery size.
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Fire Alarm Loop Load Calculator
Check device count, loop current, capacity usage, address usage, and spare margin.
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Fire Alarm DIP Switch Calculator
Convert fire alarm device addresses into DIP switch ON/OFF positions and binary value checks.
Open ToolELV
CCTV, UPS, rack power, and access control planning tools.
CCTV Storage Calculator
Calculate CCTV retention storage by camera count, bitrate, recording hours, RAID, and spare.
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Data Rack Power & UPS Calculator
Estimate rack load, UPS kVA, heat output, and battery energy requirement.
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Access Control Door Hardware Planner
Build controller, reader, lock, REX, contact, PSU, and battery quantities.
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Conduit Fill Calculator
Calculate conduit fill percentage for cable and raceway planning.
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Short Circuit Current Calculator
Estimate transformer secondary fault current for breaker duty checks.
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Lighting Lux Calculator
Estimate required lumens and luminaire count from lux target and area.
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Breaker Size Calculator
Estimate breaker rating from load current, voltage, phase, and safety margin.
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kVA to Amps Calculator
Convert kVA to amps for single-phase and three-phase electrical loads.
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Ampacity Derating Calculator
Estimate derated cable ampacity from temperature, grouping, and installation factors.
Open ToolElectrical planning notes
These tools are intended for planning, estimation support, technical checking, and preliminary decision-making. They do not replace authority-approved calculations, engineering judgement, manufacturer data, or project-specific specifications.