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How many 250-watt 240 VAC HPS fixtures can be installedon a house with a twenty-amp breaker?
Wiki User
∙ 12y ago
15, but I wonder if your information is correct. The breaker size doesn't seem to be right and a 240v circuit in a house uses a 2 pole breaker.
Wiki User
∙ 12y ago
Assuming each 250-watt fixture draws about 2.1 amps, you could install up to 9 fixtures on a twenty-amp breaker. This calculation is based on the formula for determining amperage (Watts / Volts = Amps) and the maximum continuous load of an electrical circuit being 80% of the circuit's rated capacity.
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Why would a breaker trip after 30 sec with nothing plugged in to the circuit except the tv that is turned off?
There could be a short circuit in the wiring, a faulty breaker, or an overload issue causing the breaker to trip. It's advisable to have an electrician inspect the circuit to identify and resolve the underlying cause.
Why power circuits and lighting circuits require a separate circuit breaker?
Utility outlets and lighting outlets should be separate so that when a utilization device plugged into an outlet trips the breaker or blows the fuse, you won't be left trying to find your way to safety in the dark. Light fixtures are much less likely to trip a breaker in ordinary use, but there are places you also want more than one lighting circuit for illumination.
A GFCI device in a breaker is intended to?
A GFCI device in a breaker is intended to trip the breaker open when a ground fault is sensed in the circuit that the breaker is protecting.
How many flood lights on a 15 amp breaker?
It depends on the wattage of each bulb. Typically you only want to load your circuit to 80% of its rated capacity. Hence a 15 A circuit would be .8 x 15 Amps. Now if you had all 60 Watt bulbs and the supply voltage as 120 V then you could support 24 such bulbs. The key formulas are Voltage = Current x Resistance and Watts = Voltage x Current in your lighting example. However, if the lighting fixtures are rated for a higher value and you just choose to use 60 watts, you should size to the rated capacity of the fixtures on the circuit since someone else may later put in the maximum rated bulb.
When installing a circuit breaker do you size the breaker to correct wire size or the device its controlling?
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
How many 250 watt 240vachigh pressure sodium fixtures can you install on a house service with a twenty amp breaker?
My calculation shows 15 such fixtures on that circuit.
New shop 20 amp circuit 32 amp fixture how many fixtures can be put on circuit?
A 32 amp fixture can not be fed from a 20 amp breaker as the breaker will trip every time.
How do you covert 277 light fixtures to 110 light fixtures?
You need to rewire to a lower voltage at panel or get a transformer that steps down 277 to 110 volts. Make sure wire is sized for new load as well as breaker.
Why would a breaker trip after 30 sec with nothing plugged in to the circuit except the tv that is turned off?
There could be a short circuit in the wiring, a faulty breaker, or an overload issue causing the breaker to trip. It's advisable to have an electrician inspect the circuit to identify and resolve the underlying cause.
Can you put two fixture on a single pole 15 amp breaker?
Yes, as long as your fixtures don't require more than 1650-watts in an 110-volt supply.ACTUALLY:You should never exceed 80% of the capacity of a breaker. If you actually used the 1650 Watts the breaker would trip because it would have reached the maximum capacity. Make certain that the maximum current draw on any circuit does not exceed that 80% limit.
Why power circuits and lighting circuits require a separate circuit breaker?
Utility outlets and lighting outlets should be separate so that when a utilization device plugged into an outlet trips the breaker or blows the fuse, you won't be left trying to find your way to safety in the dark. Light fixtures are much less likely to trip a breaker in ordinary use, but there are places you also want more than one lighting circuit for illumination.
Why would the two light fixtures and one overhead fan in your bathroom all go dead at once and remain dead even though the breaker has not tripped?
Proably due to a GFCI breaker located in an outlet either in the bathroom or on the same circuit, possibly in another room like the kitchen or other bathroom. You will see the button on the outlet....
What is electricians trim out means?
When the electrician finishes his work by installing light fixtures, trimming out the breaker panel, installing electrical outlets and switches, cover plates, and connecting appliances like the water heater, garbage disposal, and dishwasher.
How many outlets and lights on a 60 amp breaker?
It is recommended to have a maximum of 8 to 10 outlets and lights combined on a 60 amp breaker depending on the power draw of the devices connected. It is important not to overload the circuit to prevent potential hazards such as electrical fires. It is advisable to consult with a qualified electrician to ensure the load on the circuit is within a safe limit.
Why circuit breakers do not trip even though there is a fault?
1. Maybe you are using more than you think. Hair dryers really suck a lot of juice. 2. You may have a low-amp breaker with a lot of outlets wired to it. 3. It really depends on how many amps are being pulled vs how many amps the breaker can handle. What you need to do is identify every light and outlet that is wired to that breaker. Next time the breaker trips, leave it off and start figuring this out. Identify every light that is no longer working. Then carry a lamp (better yet, a night-light) around your house and try it in every outlet, identifying the ones that don't work. Before you flip the breaker switch, look at the switch. It should tell you how many amps it can handle before it trips. Overhead light fixture generally suck about 2-3 amps. A celing fan another 2-3 (a combination ceiling fan with light kit, around 5). Add up all the fixtures you identified as being on that circuit, and that's how many amps you are pulling, even when nothing is plugged into an outlet on that circuit. Now, a general rule in electrical wiring is that you're not supposed to have fixtures and outlets on the same circuit. I don't think there's any real danger in doing that, but it just kind of makes it easier to keep everything organized. So it may or may not be true in your house. So you may not have any fixtures at all on the circuit. If you don't, then ignore the lights and ceiling fans. Your load on that circuit is whatever appliances you have plugged in and running at the time. If you DO have fixtures on the circuit, then you can add the amps from those fixtures. Growing up, I lived in a house where the kitchen, bathroom, and laundry room were all on the same circuit. That circuit must have been a huge number of amps to support all that. But nevertheless, if you turned on the hair dryer while the clothes dryer and bathroom vent were both on, it tripped the breaker every time. And the lights went out in all three rooms. Solutions? Well, if turning on your hair dryer is what causes the breaker to trip, you can try drying your hair when other things on that circuit are not operating. Or just plug your hair dryer in to an outlet that is not on that breaker. That's the easiest thing to do. You might also think about putting a bigger (more amps) breaker on that circuit in your breaker box (I suggest you don't do this yourself - hire an electrician). Another option is to change some of the outlets and/or fixtures to another circuit, one that doesnt have as much load on it. This will require some re-wiring, which, with a little bit of knowledge, you can do yourself. But if you are not comfortable with that, then again, hire an electrician. Overhead fixtures aren't so bad because the wiring is usually up in your attic. You just need to identify which wires are on which circuits and divert another circuit to include your fixtures. Also, you need to make sure that the old circuit is still continuous (if there was a fixture in between the breaker and an outlet, or between two outlets, and you took that fixture off the circuit, then you have to complete the circuit between the breaker and outlet, or between the two outlets, directly - make sense?). The thing that you have to keep in mind is that, while you are decreasing the load on one circuit, you are increasing the load on the other circuit, and you don't want to put so much on the other circuit that it starts to trip. Oh one warning. Anything that draw a LOT of amps, like a hair dryer or clothes dryer or chop saw, should never be plugged into any outlet that is on the same circuit with electronic devices (TVs, stereos, computers, DVD players). Even if it doesn't trip the breaker (a potential disaster for some electronics), the current change created by turning the high-amp appliance on and off can damage the sensitive components of such electronics. So-called "surge protectors" are not sufficient for protecting your electronic equipment from this - they only protect against minor fluctuations caused by slight changes in the current coming into your house.
What is the major works of Gustave Courbet?
the stone breaker
How do you replace a 15 amp breaker in the circuit box?
To replace a 15 amp breaker, first shut off the main power to the circuit box. Then, remove the cover of the circuit box and unscrew the old breaker. Disconnect the wires attached to the old breaker, connect them to the new 15 amp breaker, and securely screw it in place. Finally, turn the main power back on to restore electricity.
