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What else can I help you with?
What the breaker size require for kW?
The use of a breaker in a circuit is to protect the wire size used in the circuit from becoming overloaded. Using the wattage of the load does not help for breaker sizing because the breaker operates on amperage. Amperage can be found from wattage by using the following equation. I = W /E. Amps = Watts / Volts. As you can see the amperage can not be calculated because there is no voltage stated.
What is the maximum amperage rating of a 40 amp GFCI breaker and how does it differ from other amperage ratings?
The maximum amperage rating of a 40 amp GFCI breaker is 40 amps. This rating indicates the highest amount of current the breaker can safely handle before tripping. It differs from other amperage ratings in that it is specifically designed to protect circuits with a maximum load of 40 amps, providing safety against ground faults.
Can you use 2 20amp circuit breakers to protect to 40amp?
No, it is not safe to use two 20 amp circuit breakers to protect a 40 amp circuit. Circuit breakers are designed to protect the wiring in a circuit from overheating, and using a higher amperage circuit breaker than the wiring is rated for can lead to overheating and potential fire hazards. It is important to use the correct size circuit breaker for the amperage rating of the circuit.
What size circuit breaker should be used on 125 feet of 4 AWG power feed?
The circuit breaker is used to protect the conductor that is connected to it from an overload condition. On a motor load the breaker has to be sized 250% of the motors full load amperage. Some circuits can be only loaded to 80% capacity and this is governed by the sizing of the breaker. Without knowing what the load amperage is, this question can not be answered.
Can you replace a 20 amp circuit breaker with a 25 amp circuit breaker?
No. The breaker must protect the circuit components such as wiring, outlets and switches that are connected to the breaker. Therefore if you have a 30 amp circuit as dictated by its components you need to protect it with a 30 amp or less breaker.
How do you protect two power in one circuit?
If the question means "two loads in one circuit" then the load currents have to be added together. The breaker that protects the circuit is sized for the total loading of the circuit. These two loads of course will be in parallel with each other. Find the wattage of the two loads if the amperage is not available. The equation is W = A x V. Watts = Amps x Volts. Once the total amperage of the circuit is found select the correct wire size for that amperage. The breaker protects the wire size so then select the proper breaker for that wire size.
Why is it important that homes have circuit breakers?
Fuses and circuit breakers are meant to protect your home's wiring from the heat generated from fault-currents and over-currents. Over-currents happen when you exceed the amperage the fuse or breaker is rated for over a period of time (IE: drawing 20 amps on a 15 amp circuit breaker). When this occurs a fuse or circuit breaker will open the circuit so the wiring in your home will not be damaged. Over-currents happen when electricity finds a path, other than the one intended, to ground. When this happens there is very little resistance to slow the flow of electricity and the amperage through the circuit can exceed the fuse or circuit breakers rated capacity by several hundred times . These type of faults cause the fuse or circuit breaker to open the circuit very quickly.
Can you use 70amp breaker for 40amp device?
The purpose of a circuit breaker in a panel is to protect the wiring and devices like switches, outlets and other devices that are part of that circuit. It isn't unusual to plug in an appliance into a circuit whose amperage rating is less than the breaker protection. If such an appliance doesn't have its own over-current protection it may well "fry" in an over current situation. However, if your 40 Amp device is directly connect to the 70 A circuit and has no over-current protection on its own you are risking a serious problem. If your 40 A device is on this dedicated circuit you should protect it with a properly sized breaker.
What is the function of the fuse or circuit breaker in a circuit?
A circuit breaker/fuse is designed to protect the wiring from getting overloaded.
What happens if you put a 15 amp circuit breaker in a light circuit?
The circuit should be protected by a 15 A breaker.CLARIFICATION:If the wires and other components are capable of handling 15 amps (14 Ga wire or larger), you can safely protect the circuit with a 15 amp breaker. If the circuit is a non-standard lighting device for something other than typical residential application, you should contact an electrical engineer to help you determine the proper wiring and breakers.
Installing a 120volt appliance what breaker is needed at the electric box?
For a 120-volt appliance, a single-pole breaker with a rating suitable for the appliance's power requirements should be installed in the electric box. The amperage rating of the breaker should match the current draw of the appliance to ensure proper protection and operation. It is important to consult with a qualified electrician to determine the appropriate breaker size for your specific appliance.
What is a amperage relay?
An amperage relay is an electrical device used to activate or deactivate a circuit based on the current flowing through it. It is designed to protect the circuit from overload or short-circuit conditions by opening or closing the circuit when the preset amperage level is exceeded.
