0
The amperage rating of any wire or conductor is determined by its size or gauge. It has nothing to do with whether it is a two, three or four conductor wire. For example, in basic residential wiring, a 14 gauge wire is rated at 15 amps, a 12 gauge wire is rated at 20 amps, a # 10 is rated for 30A and so forth.
Still curious? Ask our experts.
Chat with our AI personalities
Ross
Fran
CoachA 3-wire circuit could have different amp ratings depending on the type of wire and the application. In residential settings, a common amp rating for a 3-wire circuit is 20 amps, which is typical for general-purpose lighting and outlet circuits. It's important to consult the local electrical code or a professional electrician to determine the appropriate amp rating for a specific 3-wire circuit.
Add your answer:
Earn +20 pts
What is the amp rating of NM wire?
The amp rating of NM (Non-Metallic) wire varies depending on the gauge of the wire. For example, a 14-gauge NM wire typically has an amp rating of 15 amps, while a 12-gauge NM wire has an amp rating of 20 amps. It is important to consult local building codes and regulations to determine the appropriate wire gauge and amp rating for specific applications.
What is amp rating for 16 gauge wire?
10
What is the 16 gauge amp rating?
A 16-gauge wire typically has an amp rating of around 10-15 amps, depending on the type of insulation and wire composition. It is important to consult the manufacturer's specifications or a professional electrician to ensure safe and proper usage.
Can you hook a 15 amp and 20 amp breaker to a breaker box using 20 amp wire?
No, you should use wire that matches the lowest amp rating of the breakers connected to it. In this case, you should use 15 amp wire since one of the breakers is a 15 amp breaker. Matching the wire gauge to the lowest amp rating ensures the wire is protected from overheating in case of a short circuit.
What size wire do you need for a 200 Amp 240 Volt 3 phase 4 wire service on a nonresidential building?
A 3/0 copper conductor with an insulation rating of 90 degrees C is rated at 225 amps.
