Main Bonding Jumper Sizer
Bonding jumper size per NEC 250.28(D)(1) for service equipment. 1 input, 1 output.
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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.
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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.
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Grounding Electrode Conductor Sizer
GEC copper size from the service conductor per NEC Table 250.66. 1 input, 1 output.
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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.
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