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DC Wire Sizing
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DC Wire Sizing Calculator
Wire gauge selection with voltage drop, power loss & ampacity checks
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📂 Import
🔌 Wire Sizing
🔋 Battery Busbars
⚡ Circuit Parameters
System Voltage
(V)
?
Maximum Current
(A)
?
One-Way Wire Length
(ft)
?
Max Voltage Drop
(%)
?
Wire Material
?
Copper
Aluminum
Insulation Temp Rating
?
60 °C (TW, UF)
75 °C (THW, THWN, USE)
90 °C (THWN-2, XHHW-2)
Reset
📊 Wire Sizing Results
🔋 Battery Bank Parameters
Cells in Series
?
Parallel Groups
?
Cell Nominal Voltage
(V)
?
Cell Capacity
(Ah)
?
Max Continuous Current
(A)
?
Connection Length
(in)
?
Max Drop per Connection
(mV)
?
Conductor Material
?
Copper
Aluminum
Reset
📊 Battery Busbar Results