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This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps, voltage, distance, and load. This website provides a wire size calculator, voltage drop calculator, wire ampacity charts and more.
- Calculators
Wire Size Calculator: Calculates wire size based on amps,...
- Tables
Online Calculators and Tables to Help You Determine Proper...
- Wire Size Chart
Wire Size Chart. Electrical current is measured in amps....
- Motor Data
For circuits with multiple motors, the ampacity rating of...
- 40 C
Online Calculators and Tables to Help You Determine Proper...
- Three-Phase Ac Motors
For example, if there are three 15-amp motors in the...
- Wire Ampacity Correction Factors
10-20: 50: 21-30: 45: 31-40: 40: 41+ 35: View wire size...
- Distance Between Conduit Supports
Source: NFPA 70, National Electrical Code, Table...
- Calculators
Generally, a 20-amp circuit requires a wire gauge of at least 12 AWG (American Wire Gauge) for copper wire, or 10 AWG for aluminum wire, to ensure that the wire can handle the load without overheating or causing a fire hazard.
Simplify complex wire ampacity calculations with Cerrowire’s convenient Online Ampacity Calculator. This intuitive calculator takes the guesswork out of electrical code compliance, ensuring you select the right conductor size for your specific application.
Wire Size Chart. Electrical current is measured in amps. Each wire size, or wire gauge (AWG), has a maximum current limit that a wire can handle before damage occurs. It is important to pick the correct size of wire so that the wire doesn't overheat.
20 Amps Wire Size: AWG Gauge, Breaker, Suggestion For 220V-240V Circuit. If you’re looking for wire size for a 20 amp circuit (this can be for a 20 amp 220-volt circuit, breaker, battery output), you will need an AWG with at least 20 amp rated ampacity at 75°C.
The Wire Size Calculator below will calculate the proper wire size for a circuit based on circuit amps, preferred (or available) wire insulation, conductor type and installation specifications. For more advanced considerations, use the Wire Size Calculator or the Advanced Wire Size Calculator.
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