Tables and Calculators What Type and Gauge of Wire Should I use?
Type NM-B (Indoor Applications) | ||||||||||||
14/2 with ground | Lighted Medicine Cabinet | Lighting Fixtures |
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12/2 with ground | Workshop Power Tools Wall Light Switches Combination Swtich and Receptacle Diposals (Must have toggle switch at the unit) | Exhaust Fan Grounded Receptacles Lighting Fixtures with Outlets Dishwashers | Room A/C Electric Wall Heater (up to 1650 Watts at 120v) Food Freezer (On separate circuit) | |||||||||
12/3 with ground | 3-way Light Switches | |||||||||||
10/3 with ground | Apartment size Range - up to 30 amps Built-in Single Ovens - up to 30 amps | Large A/C - over 20 amps Other Major Appliances | Electric Dryer - up to 30 amps | |||||||||
10/2 with ground | Electric Wall Heater (Over 1650 Watts at 120v) | |||||||||||
8/3 with ground | Double Oven Range - up to 45 amps | |||||||||||
6/3 with ground | Built-in Double Ovens - up to 50 amps | Double Oven Range - up to 60 amps |
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Type UF-B (Outdoor Applications) | ||||||||||||
14/2 with ground | Outdoor Post Lights | |||||||||||
12/2 with ground | Switches and Ground Receptacles Patio Spot Lights | Swimming Pool Filters/Pumps Dusk to Dawn Lights | Patio-Pool W.P. Receptacles | |||||||||
Size and AMP Ratings
| NM, TW & UF WIRE | SER CABLE |
14 AWG - 15 AMPS | 8 AWG - 50 AMPS |
12 AWG - 20 AMPS | 6 AWG - 65 AMPS |
10 AWG - 30 AMPS | 4 AWG - 100 AMPS |
8 AWG - 40 AMPS | 2 AWG - 125 AMPS |
6 AWG - 55 AMPS | 1 AWG - 150 AMPS |