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An undersized cord will cause a drop in line voltage resulting in loss of power and overheating.
The table below shows the correct size to use according to cord length and nameplate amp.
rating. If in doubt, use the next heavier gauge. The smaller the gauge number the heavier the
cord.
Be sure your extension cord is properly wired and in good condition. Always replace a
damaged extension cord or have it repaired by a qualified electrician before using it. Protect
your extension cord from sharp objects, excessive heat and damp or wet areas.
Use a separate electrical circuit for your power tools. This circuit must not be less than 14
gauge wire and should be protected with either a 15 A time delayed fuse or circuit breaker.
Before connecting the power tool to the power source, make sure the switch is in the OFF
position and the power source is the same as indicated on the nameplate. Running at lower
voltage will damage the motor.
MINIMUM GAUGE (AWG) EXTENSION CORDS
(120 V use only)
Ampere Rating Total length in feet
More than Not more than 25’ 50’ 100’ 150’
0 6 18 16 16 14
6 10 18161412
10 12 16 16 14 12
12 16 14 12 Not applicable
WARNING: Keep the extension cord clear of the working area. Position the cord so
it will not get caught on the workpiece, tools or any other obstructions while you are
working with the power tool.
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