Voltage Drop & Max Ampacity Charts
Maximum distance in feet of various guage two conductor copper wire from power source to load for 2% voltage drop in a 12 volt system. Do not exceed the 2% drop for wire between PV modules and batteries. A 4 to 5% loss is acceptable between batteries and lighting circuits in most cases. All wiring should only be performed by a quaulified electrician or NABCEP certified installer and abide by the National Electrical Code.
NEC allows rounding up cable ampacity to next
standard fuse or breaker. Other factors will need consideration for proper conductor sizing including local codes and conditions.
Always consult with and use a qualified electrician for any electrical work.
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Big Frog Mountain brings you ENERGY
ENERGY STAR qualified products use less energy than conventional products. And money isn't all you're saving by purchasing products that use less energy, you're also helping to save the environment. As an ENERGY STAR partner, Big Frog Mountain is proud to offer you products with the ENERGY STAR label. For more information, visit www.energystar.gov
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Big Frog Mountain Corporation
3821 Hixson Pike
Chattanooga, Tennessee 37415
(423) 265-0307 M-F 9-5 Eastern
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