4 Bulb Fluorescent Light Fixture Wiring Diagram
Sep 03, · Assortment of fluorescent ballast wiring diagram. A wiring diagram is a streamlined standard pictorial representation of an electric circuit. It reveals the components of the circuit as streamlined forms, and the power and also signal links in between the gadgets. Rapid start ballasts can only be wired in series according to the diagram on the ballast. Instant start ballasts can only be wired in parallel according to the diagram on the ballast. Changing the wiring on a fluorescent light fixture from rapid start to instant start, involves changing the wiring from series to .
Last Updated: July 2, References. To create this article, 35 people, some anonymous, worked to edit and improve it over time.
This article has been viewed 1, times. What can i take to pass a drug test more All fluorescent light fixtures consist of at least lamp slamp holders, ballast and internal wiring. Some older types have "starters", too. The ballast is used to create the voltage and current necessary to start and illuminate the fluorescent lamp. In time, the ballast may need to be replaced. Read on to learn how to baloast out the old with an approved replacement ballast of the same technology.
Please read the entire article and warnings before attempting. To safely replace the ballast in your fluorescent light, turn off the lamp, remove it, and check the voltage of the feed wires with a voltmeter.
Then, use a nut driver to unscrew the nut holding the ballast in place and install the replacement ballast. Insert the red, blue, black and white wires in their corresponding holes, screw the nut back in place and replace the lamp. For advice on additional safety tips, as well as a method using wire cutting, read on! Did this summary help you? Yes No. Log in Social login does not work in incognito and private browsers.
Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article Steps. Tips and Warnings. Related Articles. Article Summary. Before you go to the trouble of replacing the ballast, you should determine if a bad baklast is indeed the likely cause of the problem.
First, replace the tubes with new tubes balast with tubes that you know are good. Balladt, if the lamps have turned black at one or both ends, they are bad, but the only way to know how to set up an rca universal remote sure is to replace them with good ones.
Note, however, that fluorescent lamps generally burn out gradually over time, not suddenly. If all of the tubes in a fixture stop working abruptly at the same time, it's likely that the problem is not the tubes. If replacing the tubes does not fix the problem and if the light fixture has one or more "starters" found only in older fixturesreplace the starters. There will be one starter per lamp tube. It is difficult to determine if starters are functional merely by inspecting them visually.
Swap with a new or known "good" starter to check. What were the southern colonies known for changing the tubes and starters does not correct the problem, fluoresecnt most likely culprit is the ballast.
Ballasr the light off at the switch, as well as at the circuit breaker. If you are not sure which breaker operates the light, shut off the whole house breaker to be safe. Turn the metal tabs near the center of the fixture perpendicular to its length. It will fall away from the fixture. Pull it toward you and store it in a convenient place. Do the same with the other side. Before you cut any wires, it is recommended that you check both the hot and neutral feed wires for voltage with respect to ground.
And see the alternative to cutting in step 11 before doing any cutting. The voltage can be checked with a simple voltmeter or voltage sensor. Locate the ballast and follow the wires until you find the wire nuts caps that connect wires of the same color red to red, etc. If there are no wire nuts, you fof have to cut the wires about 12 inches 30 cm mm from the center of the fixture on each side. Complete this until all wires are cut or all wire nuts are removed. Unscrew the nut holding the ballast to the fixture while holding it in place with your other hand.
This is best done with a nut driver or socket wrench. Remove the ballast by lowering the side held by the nut, and sliding it in that direction. Take the ballast with you to your local home center or hardware fluorescenf and purchase a like replacement. Note the number of tubes in your fixture and their wattage, length, type T8, T12, T5, etc. Note also there may be two ballasts in a four-tube fixture, each ballast running two of the tubes.
Install the replacement ballast by reversing the instructions in step 5. Be sure the red and blue wire face the end with red and blue wires, and the black and white wires face the other end. If you opt for the cutting method, cut the wires so they overlap the fixture wires by about 6 inches 15 cm mm. Use a wire nut to connect the blue wire to the blue wire, the red to the red, the eire to the white, and the black ballst the black.
As a quick and easy alternative to cutting and wiring, simply rotate and pull the wires out of the lamp connectors.
A little back and forth rotation in the manner of a screwdriver suffices, but is necessary otherwise the wires won't come out.
Make a note of the wire colors when you pull them out. To connect the new ballast, simply push the wire into the hole from which you pulled the old wire out and give the wire a tug to make sure it's seated firmly, the same method as used at the factory. Reverse step 3. Make sure the tabs are in the holes at the end of the fixture.
The old ballast has three wires, red, black, and white. The new ballast has 5 wires, red, black, white, and folder corrupted how to recover blue. How do I wire in the new ballast? Most likely that is a different generation of ballast.
Cap the two blue wires and install the red, black, and white as usual. It should work fine. Not Helpful 3 Helpful My fluorescent light fixture sometimes turns on and then sometimes won't. How do I fix that? If it has a starter a small aluminum-looking cylinder that screws in below the bulbreplace that. If not, replace the ballast.
Not Helpful 5 Helpful Probably not. If the fixture is a 2 tube fixture, it is how to rotate a picture on openoffice a single bad tube. If both the tubes are old, you might consider replacing both of them with newer, slightly lower wattage ones to save electricity.
For example, if they are 40 watt, try some 32 watt tubes. Not Helpful 10 Helpful 8. Yes, but not the other way around. A watt ballast will not power a watt lamp. Not Helpful 1 Helpful 2. How to euthanize a chicken humanely you are referring to "quick connect" terminal blocks on each end of a wjre, the answer is yes.
Make sure you follow the color pattern on the ballast i. Just follow the wiring diagram on the electronic ballast. Depending on the number of lamps in the fixture, you may have to tie some together. Not Helpful 1 Helpful 5. Include your email address to get a message when this question is answered.
By using this service, some information may be shared with YouTube. This is a good time to clean the fixture. Helpful 37 Not Helpful Helpful 22 Not Helpful If you bought one of the new electronic ballasts, you will have two blue wires and two red wires.
But your single bulb fixture may have only gallast blue wire coming from the bulb connector.
Call our sales team on 0113 887 6270
Oct 09, · Cut the Old Ballast Wiring Snip the old fluorescent ballast wiring several inches from the end of the fluorescent ballast with side-cutting pliers Cut all the wires connected to the fluorescent light ballast. Note: There will be four to eight wires coming out of the Note: There will be four to Estimated Reading Time: 1 min. Sep 28, · How To Replace the Ballast of your Fluorescent Light Fixture,Replace a T8 fluorescent light fixture ballast. It is important to follow the wiring diagram on. Jan 24, · Learn How to Replace a Fluorescent Light Ballast. It's not difficult. Includes a cameo appearance from Baxter. ;-) See my channel here: lovemeen.come.
Electrical Fluorescent tubes require a ballast to operate. A fluorescent tube circuit includes a ballast, wires, lampholders, and the tubes. Electricians usually refer to a light bulb as a lamp. On this page, we will refer to a fluorescent light bulb as a lamp or tube. Individual ballast wires each connect to a lampholder on one side of each tube.
The common wire s connect to all of the lampholders on the other side of the tubes. Wire colors for individual and common connections on fluorescent ballasts will vary depending on ballast type, brand, and the number of lamps they support.
Ballasts have certain colors for individual wires to lampholders, and other colors for common wires to holders. Older magnetic fluorescent ballasts are usually rapid start and wired in series.
Newer electronic ballasts are instant start wired in parallel , rapid start wired in series , programmed start wired in series- parallel, dimmable and CFL ballasts. When a rapid start ballast wired in series operates multiple lamps and one lamp fails, the circuit is opened and the other lamps will not light.
When an instant start ballast wired in parallel operates multiple lamps in a circuit, the lamps operate independently of each other.
If one lamp fails, the others can keep operating as the circuit between them and the ballast remains unbroken. With some 3 and 4- lamp programmed start ballasts wired in series- parallel , if a single lamp in one branch fails, the lamp s in the parallel branch will continue to operate. Grounding a ballast is very important. Grounding is usually automatic if the light fixture is grounded properly.
A ground wire from the power source should be connected to a light fixture. A metal ballast mounted to the metal light fixture will automatically ground the ballast. If a ballast has a ground terminal on it, a ground wire should be connected to it. Rapid Start Wiring 1 to 3 Lamps.
Rapid Start Wiring 4 Lamps. Fluorescent Lampholder Wiring. Instant Start Lampholder Wiring. Rapid Start Lampholder Wiring 2 and 4 Lamps. Rapid Start Lampholder Wiring 3 Lamps. Swap Terminals on Non- Shunted Lampholders. Question or Comment? Bulb vs Lamp Electricians usually refer to a light bulb as a lamp. Individual vs Common Ballast Wires Individual ballast wires each connect to a lampholder on one side of each tube.
Ballast Wiring. Ballast Wire Colors Wire colors for individual and common connections on fluorescent ballasts will vary depending on ballast type, brand, and the number of lamps they support. Magnetic vs Electronic Ballasts Older magnetic fluorescent ballasts are usually rapid start and wired in series. Rapid Start vs Instant Start Ballasts When a rapid start ballast wired in series operates multiple lamps and one lamp fails, the circuit is opened and the other lamps will not light.
Rapid start ballasts can only be wired in series according to the diagram on the ballast. Instant start ballasts can only be wired in parallel according to the diagram on the ballast. Changing the wiring on a fluorescent light fixture from rapid start to instant start, involves changing the wiring from series to parallel. Wired in series. Wired in parallel.
Grounding a Ballast Grounding a ballast is very important.