0
Why do two circuit breakers control the same circuit 120 volts on all devices in circuit?
Wiki User
∙ 11y ago
Circuit breakers are like fuses that you can reset. There is no need for two though because they do the same job as one, which is to open the circuit as soon as the voltage that is being called for by all the devices becomes greater than the 120v you mentioned.
<<>>
It sounds to me like you are talking about a three wire split receptacle On kitchen counter plugs and sometimes other locations the electrical code requires that split receptacles be installed. This request came about by people trying to plug too many appliances into one 15 amp circuit. The circuit not being able to carry the load and constantly tripping the breaker. On a split receptacle the tie bar is removed on the hot side (brass) of the receptacle but not on the neutral (silver) side. The red wire is connected to the top brass screw, the black wire is connected to the bottom brass screw and the white (neutral) wire is connected to the other side of the receptacle The rating of the breaker in the panel will be, 2 pole 15 amp. What this gives you is 2 separate 120 volt 15 amp circuits on one receptacle If the voltage was measured between the two hot slots on the right side of the receptacle top and bottom you would measure 240 volts. This voltage would only be 240 if the breaker feeding the receptacle was full size 2 pole and not mini breakers.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How do you explain the difference in 440V 460V and 480V?
In the United States, 480 Volts (AC) is a nominal system voltage before it is distributed to the device being powered. Line losses (measured in volts) occur throughout the distribution system due to current passing through wires and devices which have a resistance. Manufacturers of end use devices, such as motors, take this into account and list their devices as 460 volt devices. So, what this means is that you will see transformers and circuit breakers with nameplates at 480 Volts (AC), and motor nameplates at 460 Volts (AC). Older 3-phase motors may actually have nameplates for 440 Volts, but all new motors in this voltage range would be listed as 460 Volt motors.
What size breakers are needed for two 500 watt baseboards?
Each baseboard heater will draw a little over 4 amps at 120 volts or 2 Amps at 240 volts. The total number of baseboards on a circuit will draw the sum of these amps. Keep the load under 80% of the amperage rating of the breaker.
A circuit has an applied voltage of 100 volts and a resistance of 1000 ohms What is the current flow in the circuit?
A circuit has an applied voltage of 100 volts and a resistance of 1000 ohms. The current flow in the circuit is 100v/1000ohms which would equal .1.
What is the resistance of the circuit if the voltage is 230 volts and the current flowing is 5 amps?
The resistance of the circuit will be 46 ohms
What is the basic operation of 220 volts flashing lamp?
Basically the circuit to the lamp opens and closes in a specific amount of times per minute. In some models this can be varied with a control circuit that allows the operator to set how many times the lamp is to flash per minute.
Do you have a circuit breaker which operates for one millon volts?
Circuit breakers operate on current not voltage.
How do you explain the difference in 440V 460V and 480V?
In the United States, 480 Volts (AC) is a nominal system voltage before it is distributed to the device being powered. Line losses (measured in volts) occur throughout the distribution system due to current passing through wires and devices which have a resistance. Manufacturers of end use devices, such as motors, take this into account and list their devices as 460 volt devices. So, what this means is that you will see transformers and circuit breakers with nameplates at 480 Volts (AC), and motor nameplates at 460 Volts (AC). Older 3-phase motors may actually have nameplates for 440 Volts, but all new motors in this voltage range would be listed as 460 Volt motors.
How volts comes from a 20amps breaker?
On most residential circuit breaker boxes in North America, each individual breaker represents one 120-volt circuit. Two breakers ganged together represent a 240-volt circuit.
How do you prevent damage to equipments when 215 volts becomes 440 volts?
and breakers that can only hold up to 250 volts
Can you use a single pole circuit breaker rated for 120 volts with 60 hertz made for North American power in Europe on a 220 volt 50 hertz single phase circuit?
These are two completelydifferent systems and are incompatible with each other. Right from the manufacturer's specifications of the breakers down to the physical size of the electrical panels the breakers fit into.
What is the typical number of amps per circuit and what is the typical number of volts that enter your home and what is the typical number of volts for each circuit and what is a gfi?
15 amps per circuit 240 Volts total 120 Volts each circuit GFCI=Ground Fault Circuit Interrupter
Why is 5 volts DC used as a voltage in a power supply?
The circuit designer typically picks a family of devices to implement the functionality of the circuit. The devices will fall into a range of voltages. Many integrated circuits operate at 5VDC, so it is an obvious choice for many applications.
What is an electric shared neutral?
An electric shared neutral is the white or negative wire that is shared between two electrical circuits on a basic single phase system. Most electrical devices use 120 volts and require a "hot" wire and a neutral wire to operate. Some larger devices use 240 volts and require two "hot" wires to operate. Two circuit breakers in an electrical panel can share one neutral wire as long as the breakers are not on the same "leg" of power. When looking at an electrical panel there are usually two "legs" of power feeding all the breakers, each leg has 120 Volts to ground, if the "legs" are combined you will have 240 Volts. A neutral wire can be shared by two circuits as long as the breakers are on separate "legs". If someone needed to add two circuits in their home, the could run what is called a 3-wire romex, It has a black wire, a red wire, a white wire and a ground wire. The white wire is the neutral for both the black and red 120 volt circuits, and the breakers for the new circuits would need to be on separate "legs" in the panel.
What is the rating of the main circuit breaker of the 105kw power distribution panel?
To answer this question a voltage must be stated. Main breakers are rated in amps. This is the formula for amperage. I = W/E. Amps = Watts/Volts. As you can see a
What does trouble code p0138 on 2001 dodge 1500 mean?
Downstream O2 sensor circuit volts high.Downstream O2 sensor circuit volts high.
How many watts per outlet?
No way of telling unless you know the current of all devices that use the circuit. The maximum wattage for the circuit, assuming a resistive load (no motors) would be: Watts = Volts x Current.
How do you check the volts?
by attatching a voltmeter into the circuit you are trying to measure the volts of.
