12 Volt Wire Selection Calculator

Many B-K Lighting fixtures operate on 12 volts. Taking advantage of these energy-saving fixtures requires appropriate care in planning the electrical wiring system. To maintain expected lamp performance we recommend the following procedures in sizing your low-voltage wiring system.

These calculations are estimates based upon a 5% maximum voltage drop. These approximations do not consider real-world factors like temperature or other stresses. Please note that this calculator represents data specifically for use with B-K Lighting 12V products. AWG smaller than 12 gauge or larger than 6 gauge will not be displayed or recommended.

Begin by determining your "Center of Load" by entering your data for step 1 and step 2 (you may use Enter/Tab keys while mobile users may use Next/Go); the form will automatically generate the calculations. Enter the total wattage for the proposed low voltage run for step 3. Finally, re-enter your Center of Load for the recommended wire gauge. Our Low Voltage Guide PDF is also available for download.



START HERE ▼

Distance from 1st to Last Fixture
Ft

Distance from Transformer to 1st Fixture
Ft

Center of Load
Ft

     

STEP TWO

Total wattage =
W

Re-enter Center of Load =
Ft

  Estimated AWG
Ga

Calculated Details:

Est. Current =

   Amps

Est. Allowable Resistance =

   Ohms

Est. Ohms per 1000 Feet =

   Ohms/1000 feet