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Evolution™ Series Four/Five Gang Floor Box

EFB45S Wiremold
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The Evolution™ Series Four/Five Gang Floor Box has been designed to be installed in concrete, raised, and wood floor applications. The box has a fully finished interior to assist plugging and unplugging of devices. Designed to work with standard size wall plates for four gangs of capacity, or proprietary plates for a full five gangs of capacity. It comes complete with all components needed for initial installation. The floor box is compatible with Walkerflex Modular Wiring System. Custom options are available upon request.
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  • One box many applications. Evolution Series Floor Boxes are designed to work in concrete, raised and wood floor applications and are fully adjustable both pre- and post-concrete pour. A single box can be specified for multiple floor types without having to order additional components or accessories. *If used in concrete, concrete leveling legs need to be purchased separately for all non-OG boxes.
  • Configurable with removable modules. In addition to having removable dividers and a tunnel feature that allows all compartments to be connected, the modules are removable through the top or back of the floor box. This allows for easier installations and facilitates moves, adds and changes without having to disconnect services, saving time and money.
  • Audio/Video Design. Evolution Series Floor Boxes have been developed specifically with the A/V industry in mind. With 3 1/2'' - 3 7/8'' [89mm x 98mm] of wiring capacity behind each device plate, these boxes will accept devices from leading A/V manufacturers including Extron® Electronics and Crestron®.
  • Durable 180° articulating hinge. Hinge design enables covers to open a full 180° and lie flat on the floor surface with the durability to support a large cover. Provides easy access to all interior modules and activations while reducing tripping hazards.
  • Auto-close egress doors. Cable egress doors lock in position when open, and automatically closes around wires to protect cabling and reduce trip hazards.
  • Die cast aluminium cover assemblies. Evolution Series Floor Box Covers have been designed to work on multiple floor surfaces and are manufactured from die cast aluminium to provide strength and style. Decorative powder coat colors (black, brass, bronze, gray, nickel, and aluminium) will complement any room décor.
  • Finished interior. Fully finished interior removes the unfinished industrial look while increasing visibility, making it easier to see where to plug in devices.


General Info
Product Line Wiremold
Color White
UPC Number 786564086253
Country Of Origin Mexico
Construction Assembled
Application Sector Commercial
Standard cULus Listed Metallic Outlet Boxes: File E2961 Guide QCIT Meets Article 314.27(C) of NEC.
Type Floor Box
Product Width US 9.0 in
Product Weight US 13.5 lb
Product Volume US 702.0 cu in
Product Depth US 13.0 in
Product Height US 6.0 in
Cubic Capacity 27.5 in3
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 Environmental Profile Yes
Listing Agencies / 3rd Party Agencies
cULus ListingNumber  E2961
cULus Listed  Yes
Buy American Act Compliance
Technical Information
Cable Entry Knockouts
Number of Outlets 0


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Questions & Answers

Does this box come with the cover? If not what is the part number for the covers?

Asked by: Electric
Hello, The EFB45S does not come with a cover. There are different styles of EFB45BT / EFB45CT covers depending on the floor covering and color. Here is a link to the cutsheet with all the options: https://legrand.webdamdb.com/directdownload.php?ti=90824674&tok=TptdRxGR4EEHF3jn2vyKuQRR Thank you
Answered by: Wiremold Tech Support
Date published: 2024-06-18

Can this box be installed in a existing building on a like 3rd floor by just cutting the concrete or does it need to be installed during the pouring of colncrete?

Asked by: AV Room remodel
Hello, This box can be installed into an existing floor by saw cutting that slab, setting the box, then re-pouring concrete to cast the box into place. One thing I would confirm first is if the floor is fire rated. If it's a rated floor this box may not be suitable for the application as it doesn't carry any fire ratings. If it's not a rated floor then you can saw cut and cast the box into place. If you would like to discuss the application in greater detail you can give us a call directly at 1-844-957-3783, option 2 for Wiremold, followed by option 2 again for tech support. You can also email us directly at technical.support@legrand.us. Thank you.
Answered by: Wiremold Tech Support
Date published: 2022-06-08

I need to install this boxes in finish polish concrete and in carpet (after concrete). Is the protective cover that comes with this boxes what I need to cover my boxes before the concrete is pour? Or do I need to get the concrete/terrazzo ring (EFB45-CTR)

Asked by: Hugo
Hello Hugo, The protective cover should be installed on the box to prevent concrete from entering the floor box during the concrete pour. For finished concrete/terrazzo floors the EFB45-CTR trim ring is required. Please reference the link below for instructions further detailing at what point the EFB45-CTR needs to be installed on the box. https://legrand.webdamdb.com/directdownload.php?ti=55659318&tok=r2FN1j4azNUAgfW4N5rx5gRR For concrete floors that will be covered with carpet, the EFB45-CTR would not be required and the cover options would be EFB45BTC (solid blank cover) or EFB45CTC (carpet cutout insert option). A link to the cutsheet for the parts mentioned above is also attached below. https://legrand.webdamdb.com/directdownload.php?ti=55649624&tok=47JnibXzycxdgn51ur4HkgRR
Answered by: Wiremold Tech Support
Date published: 2021-09-17
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