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RFBA 4-Gang Floor Box - On Grade

RFBA4R30OG Wiremold
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Your go-to floor box just got better. Resource RFB Series Floor Boxes are designed for maximum efficiency throughout an entire building, bringing versatile recessed activations for power and data services to open space areas or directly to workstations. No matter what size you choose, components and accessories work across the entire line interchangeably. Simply mix-and-match as needed for your project. Improved wire and cable routing makes wire pulling much easier in adjacent compartments and around corners. Available in 2-, 4-, 6- and 10-gang models with a variety of covers, colors and profiles.* Installs in tile, stone, carpet, terrazzo, wood and polished concrete. Perfect for many applications, including schools, financial institutions, commercial office buildings, hospitality and residential.

Grade On Grade
Number of Gangs 4 Gang
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  • One consistent design: Mix-and-match Resource RFBA Series Floor Boxes of any size with interchangeable components. Makes every project installation quick and efficient.
  • Universal sized conduit feed: Meets all requirements for each box. 2- and 4-gang shallow boxes accept a 1”” conduit feed, while all standard boxes accept a 2”” conduit feed.
  • Improved wire and cable routing: Allows for easier wire pulling in adjacent compartments and around corners, reducing the overall cost for most cabling requirements.
  • Two finishes: Every box configuration is available in either a standard zinc-plated construction or a lightweight ““slab-on-grade”” finish with fusion-bonded epoxy corrosion resistant paint.
  • Removable dividers post-pour: Fully adjustable before and after the concrete pour.
  • Adapts to most power and communication needs: Common mounting plates can be used for any of the Resource RFB Series Floor Boxes. Reduces overall life cycle cost.


General Info
Product Line Wiremold
UPC Number 786564105428
Country Of Origin Mexico
Installation Location On Grade
Number of Knockouts 20
Application Sector Commercial
Standard UL514
Product Width US 11.937 in
Product Depth US 3.0 in
Knockout Size 2 in
Additional Information
RoHS Conformant Yes This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863.
Product Has Potential to Contribute to LEED Yes This product contributes to earning credits in the LEED rating system. Visit our LEED with Legrand webpage for more information.
Product Environmental Profile Yes
Listing Agencies / 3rd Party Agencies
cULus ListingNumber  QCIT
cULus Listed  Yes
Buy American Act Compliance
Technical Information
Floor Type Concrete
Number of Gangs 4
Number of Compartments 4
Plenum No
Indoor/Outdoor Indoor


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Questions & Answers

What weight can these boxes withstand? We are installing in a commercial shopping mall with tile, and the owner is worried about scissors lifts or heavy equipment crushing the boxes.

Asked by: Brandon LVMJ
Hello. Our FloorPort covers have static load ratings of 750 or 1000 lbs (see attached chart). Please note that they are not tested for rolling loads. Thanks!
Answered by: Wiremold Tech Support
Date published: 2024-07-16

Where can I buy the trim plates for my outlets inside the 4 gang floor box, also I have data inside aswell

Asked by: Nacho89
Hello, Device plates are available from the same store the floor box was purchased. Please call us direct at 1-844-957-3783 for a listing of locations near you. Thank you
Answered by: Wiremold Tech Support
Date published: 2024-03-22

Do you have a part number for the piece labeled as “shell” in the installation instructions.

Asked by: Brandon BRE
Hello, The shell is provided with the box rather than separately, so we don't have a part number for the shell only. Thank you
Answered by: Wiremold Tech Support
Date published: 2023-12-27

Is the RFBA series floor boxes and covers certified to the UL514A Standard, and if so, how do you go about getting a copy of this certification?

Asked by: Anonymous
Hello, Yes, the UL standard for metallic outlet boxes is UL 514A which applies to the RFBA series. Please send an email to technical.support@legrand.us for a UL pdf. Thank you
Answered by: Wiremold Tech Support
Date published: 2023-10-27

I have a RFBA 2 box. Is there a gasket kit for devices that are installed in the box? I have a GFCI and a duplex that are installed in the box. Or is it just a gasket that comes with the floor cover?

Asked by: Matt Huskey
Hello Matt, The only gasket is the one that's included with the finished Floorport cover and flange assembly. Thank you
Answered by: Wiremold Tech Support
Date published: 2023-09-12

Hello, Are there CAD downloads available for the round activation floor boxes?

Asked by: Nicolette Gordon
Hello Nicolette, Please email us a list of floor box parts you'd like CAD drawing's for. Our direct email address is technical.support@legrand.us. If you prefer calling us we can be reached at 1-844-957-3783. Thank you,
Answered by: Wiremold Tech Support
Date published: 2023-08-08

Please explain the differences between the RFB and RFBA series of floor boxes? Is the RFBA the newer/upgraded version of the RFB series?

Asked by: Ryan
Hello, The RFBA series is the newer redesigned version of the box. The boxes have improved wire and cable pass-through capabilities and device plates that work with all the boxes in the series. The RFB style has been discontinued. Thank you,
Answered by: Wiremold Tech Support
Date published: 2023-07-26

What Color Options are these available in? I don't see where this information is available on the site or in the resources provided.

Asked by: Anonymous
Hello, The FPL covers for the RFBA6R30 floor box are available in black, gray, bronze, brass, nickel and aluminum. The link to the cutsheet is below for reference. https://legrand.webdamdb.com/directdownload.php?ti=131948498&tok=NQKHPY9/Azncx4Bv58SFqgRR Thank you,
Answered by: Wiremold Tech Support
Date published: 2024-02-20
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