Air Compressor
● The smaller the wire’s gauge number, the greater the capacity of the cord. For example, a 14-gauge
cord can carry a higher current than a 16-gauge cord. Minimum extension cord wire size is shown in the
following table:
Minimum Wire Size of Extension Cords
Nameplate AMPS Cord Length
25’ 50’ 100’ 150’
0-6 18 AWG 16 AWG 16 AWG 14 AWG
6-10 18 AWG 16 AWG 14 AWG 12 AWG
10-12 16 AWG 16 AWG 14 AWG 12 AWG
12-16 14 AWG 12 AWG NOT RECOMMENDED
● Maximum length of extension cord for this compressor should be 50 feet (15 meters). Minimum wire size
of extension cord should be 12 gauge.
● Use a heavy-gauge extension, since very thin or very long cord may cause voltage drop and result in
loss of power in the compressor and overheating. Select a properly grounded extension cord which will
mate directly with the power source receptacle and the air compressor power cord without the use of
adapters. Make certain that the extension cord is properly wired and in good electrical condition.
● When using more than one extension cord to make up the total length, make sure each cord contains at
least the minimum wire size required.
● If you are using one extension cord for more than one tool, add the nameplate amperes and use the sum
to determine the required minimum cord size.
● If you are using an extension cord outdoors, make sure it is marked with the suffix W-A (W in Canada) to
indicate it is acceptable for outdoor use.
● Make sure your extension cord is properly wired and in good electrical condition. Always replace a
damaged extension cord or have it repaired by a qualified electrician before using it.
● Protect your extension cords from sharp objects, excessive heat, and damp or wet areas.
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