Electrical Cable | Sizes

Used primarily in North America, this system uses a numbering scale where a smaller number represents a thicker wire . For instance, a 10 AWG wire is thicker than a 14 AWG wire. Common Household Cable Sizes

thinner the wire (e.g., 14 AWG is thinner than 10 AWG). Metric (mm²): Used in most of the world, including the UK and Europe. It measures the cross-sectional area of the conductor; the higher the number, the thicker the wire. Elliott Electric Supply +2 Common Cable Sizes and Their Uses In residential wiring, specific gauges are matched to the amperage (amp) capacity of a circuit breaker to prevent overloading: Schneider Electric +1 Wire Size (AWG) Metric Approx (mm²) Max Amperage Common Household Uses 18 AWG 0.75 mm² ~5–7 Amps Low-voltage lighting, doorbells, thermostats 14 AWG 1.5 mm² 15 Amps Standard lighting circuits and bedroom outlets 12 AWG 2.5 mm² 20 Amps Kitchen and bathroom outlets, air conditioners 10 AWG 4.0–6.0 mm² 30 Amps Electric dryers, water heaters, small ovens 8 AWG 10 mm² 40 Amps Large electric ranges, central air conditioning 6 AWG 16 mm² 55–60 Amps EV chargers, heavy-duty cooktops Key Factors for Sizing When determining the size needed for a project, professional electricians consider several variables beyond just the device's power draw: 12 sites Choosing the Right Cable Size for Electrical Installations Aug 25, 2023 — electrical cable sizes

Used in most of the world, including Europe and Australia, this system measures the cross-sectional area of the copper conductor in square millimeters. Used primarily in North America, this system uses