Replacing Flourescent Ballast

Discussion in 'Electrical Forum discussion & Blog' started by Malibu Jim, Dec 1, 2008.

  1. Malibu Jim

    Malibu Jim New Member

    Messages:
    18
    Location:
    California
    The prevous owner had some flourescent lights hard wired in the closets of our home. These light assemblies are about 42" long and contain 2 ea F13T5 bulbs, about 20" long. They are giving out and replacing the bulbs doesn't help, so it must be the ballasts! Tried to buy the ballasts locally, to no avail, so I ordered some off the internet. The orig ballasts have a p/n E2813NP on them, Electronic Ballast, for (2)F8T5 and/or F13T5 lamps. There are blk & wh power wires exiting the case, along with 4 red & 4 blue wires for the flour. lamps. The ballast I received is a solid state electronic ballast, for T5, T8 & 2x F21T5 lamps. The sales slip accompaning them says Fulham Workhorse long case ballast, WH2-120-L, operates (2) F13 T5 lamps. But, other than the B&W power wires, there are 2 red and 1 yellow wire exiting the case. While the old ballasts have a wiring diag on the case, the new ones don't, and I'm at a loss as to how to wire them.:mad:
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    The new ballast should come with a wiring diagram. You may need to reconfigure the wiring to the tombstones.


    Here are the instructions:
    Diagrams for T5 Linear with a bulb set 2xF13

    Diagram 1 for Workhorse 2 Diagram 1 for Workhorse 4 Diagram 1 for WHAM 2 Diagram 1 for Longhorse 2 Diagram 1 for Longhorse 4 [​IMG]
    Last edited: Dec 2, 2008
  3. Malibu Jim

    Malibu Jim New Member

    Messages:
    18
    Location:
    California
    Thanks. The ballasts came w/o any schematic, but I should've thought :)about checking the mfg web site.
    Thanks again
  4. jar546

    jar546 In the Trades

    Messages:
    432
    Location:
    USA
  5. Cass

    Cass Plumber

    Messages:
    5,980
    Location:
    Ohio
    Just curious if they are required on residential...
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,293
    Location:
    Cave Creek, Arizona
    code

    The specification states for non-residential use.
  7. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,529
    Location:
    North Carolina
    (G) Disconnecting Means.
    (1) General. In indoor locations other than dwellings and associated accessory structures, fluorescent luminaires that utilize double-ended lamps and contain ballast(s) that can be serviced in place shall have a disconnecting means either internal or external to each luminaire. The line side terminals of the disconnecting means shall be guarded.

    I don't think so
  8. jar546

    jar546 In the Trades

    Messages:
    432
    Location:
    USA
    This is true.....
  9. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,529
    Location:
    North Carolina

    But still a good idea in my opinion
  10. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Just curious....with respect to this disconnect plug, and the code, would all the following fall under the "residential" defintion:

    apartment building ( small ones. multistory ones.)
    hotel rooms
    office, lobby, or public spaces in hotel
    laundry room at a condo complex
    a house now permitted as a 6-person assisted living facility.


    Just want to have a feel about how broad the application of this code section is.
  11. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,529
    Location:
    North Carolina
    In NC these would be commercial buildings and the disconnect for lights with ballast would require a disconnect
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