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A breaker is sized by the conductor that is connected to it but also the load that is connected to the breaker. There are some cases such as motor loads where the breaker has to be 250% of the motors full nameplate amperage.
A #4 aluminium conductor with an insulation factor of 90 degrees C is rated for 75 amps.
What else can I help you with?
How big of breaker do you use for 115 volt?
Depends on the wire size used in the circuit. If you use AWG # 14 wire you must use a 15 amp breaker. If it is wired with AWG # 12 wire then you use a 20 amp breaker. If a AWG # 10 wire is used then a 30 amp breaker is required. The breaker protects the wiring from overheating so you must use the proper size breaker for the wire used.
What size amp circuit breaker should be used for a home entertainment system?
You use the correct size breaker depending on the size wire in the circuit. If the circuit is wired with AWG #12 wire use a 20 amp breaker. If it is wired with AWG #14 wire then use a 15 amp breaker.
What is the wire size for a 35 amp breaker to a ac unit?
You will need to use #8 wire.
What size wire and breaker do you need for a 5000 watt garage heater?
Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker
Can you have a 120v circuit on a 30 amp breaker?
No, electrical code typically requires that circuits be protected by a breaker that matches the wire size. A 30 amp breaker is typically used for circuits with larger wire sizes. For a 120V circuit, a 20 amp breaker is more suitable with appropriate wire size.
What is the recommended wire size for a 20 amp breaker?
The recommended wire size for a 20 amp breaker is typically 12-gauge wire.
What is the appropriate wire size for a 25 amp breaker?
The appropriate wire size for a 25 amp breaker is typically 10 gauge wire.
What is the appropriate wire size for a 30 amp breaker?
The appropriate wire size for a 30 amp breaker is typically 10 gauge wire.
What is the recommended wire size for a 25 amp breaker?
The recommended wire size for a 25 amp breaker is typically 10 gauge wire.
What is the recommended wire size for a 30 amp breaker?
The recommended wire size for a 30 amp breaker is typically 10 gauge wire.
What is the recommended wire size for a 50 amp breaker?
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.
What is the recommended wire size for a 60 amp breaker?
The recommended wire size for a 60 amp breaker is typically 6-gauge wire.
What size wire do I need for a 30 amp breaker?
For a 30 amp breaker, you will need a wire that is at least 10 gauge in size.
What is the recommended wire size for a 40 amp breaker?
The recommended wire size for a 40 amp breaker is typically 8 AWG (American Wire Gauge).
What is the appropriate wire size for a 40 amp breaker?
The appropriate wire size for a 40 amp breaker is typically 8 AWG (American Wire Gauge).
What is the recommended wire size for a 35 amp breaker?
The recommended wire size for a 35 amp breaker is typically 8 AWG (American Wire Gauge) for copper wire.
What is the recommended wire size for a 50amp breaker?
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.
