Calculator
DC Voltage Drop Calculator
NEC Table 8 resistance drop for 24V DC control runs with gauge picker, material and limit verdict. 9 inputs, 5 outputs with grouped results.
Open calculatorCalculators
Wire & Voltage Drop calculators
Wire and voltage drop: DC, single and three-phase drop, max length solver, resistance and loss.
Calculator
Equipment Grounding Conductor Sizer
EGC size from the upstream OCPD per NEC Table 250.122, copper or aluminum. 3 inputs, 2 outputs with grouped results.
Open calculatorCalculator
Grounding Electrode Conductor Sizer
GEC copper size from the service conductor per NEC Table 250.66. 1 input, 1 output.
Open calculatorCalculator
Main Bonding Jumper Sizer
Bonding jumper size per NEC 250.28(D)(1) for service equipment. 1 input, 1 output.
Open calculatorCalculator
Max Wire Length Solver
Back-solve allowable one-way length from drop budget, with gauge picker and feet+meters results. 7 inputs, 3 outputs with grouped results.
Open calculatorCalculator
Separately Derived System Bonding Calculator
SDS bonding jumper per 250.30(A)(1) via Table 250.66. 1 input, 1 output.
Open calculatorCalculator
Single-Phase Voltage Drop Calculator
NEC Chapter 9 R+X drop with AWG picker, conduit reactance, parallel sets and 3% verdict. 9 inputs, 5 outputs with grouped results.
Open calculatorCalculator
Three-Phase Voltage Drop Calculator
NEC Chapter 9 three-phase drop with gauge picker, PF-aware reactance and limit verdict. 9 inputs, 5 outputs with grouped results.
Open calculatorCalculator
Wire Gauge Converter
AWG/kcmil to mm2 and cmil per Chapter 9 Table 8. 1 input, 2 outputs.
Open calculatorCalculator
Wire Resistance and Loss Calculator
Loop resistance from the AWG dataset, I2R loss, drop, efficiency and annual waste cost. 6 inputs, 5 outputs with grouped results.
Open calculator