Legrand RFB User Manual

Legrand/Wiremold electrical systems conform to and should be properly
grounded in compliance with requirements of the current National
Electrical Code or codes administered by local authorities.

All electrical products may present a possible shock or fire
hazard if improperly installed or used. Legrand/Wiremold electrical
products may bear the mark as UL Listed and/or Classified and
should be installed in conformance with current local and/or the
National Electrical Code.

RFB Series Floor Boxes

I N S T A L L A T I O N I N S T R U C T I O N S

nstallation Instruction No.: 1 007 256R2 – Updated January 2012

I

PRODUCTS: Floor Box Cat. Nos.: RFB4E, RFB4E-OG, RFB6, RFB6-OG, RFB6E, RFB6E-OG

Device Plate Cat. Nos.: RFB6B, RFB6DP, RFB6GFI, RFB6S1, RFB6S2, RFB6RT, RFB6EXT,
RFB62A, RFB6-AAP

Furniture Feed Kit Cat. Nos.: RFB4KIT, RFB6KIT
Bare Concrete & Terrazzo Ring Cat. Nos.: RFB4E-CTR, RFB6E-CTR

RFB Series Floor Boxes and Activations are UL Listed for use with tile, terrazzo and carpet covered concrete floors.
RFB6 and RFB6-OG Floor Boxes and Activations are also UL Listed for use with floors of wood construction.

BEFORE CONCRETE POUR:

Step 1. Determine box location and conduit layout.

Step 2. Take off box top by removing two (2) #8-32 screws

Step 3. Remove necessary knockouts. Attach conduit and

attaching cover to base.

fittings (not supplied by Wiremold) to steel base.

IMPORTANT: Please read all instructions

before beginning.

(2) #8-32 Screws

Remove KOs & attach
Fittings and Conduit

Step 4. Configure adjacent compartments.

RFB4E – Remove and discard
Barrier for pass through

Replace #8 Screw after
removing Barrier

RFB4E Series Boxes are configured with solid removable
partitions that can be discarded for wire pass through.
Replace #8 screw back into base after barrier removal.

Step 5. Re-attach box cover to base with two (2) #8-32 screws

removed during Step 2.

RFB6 & RFB6E – Remove Plug and replace
with Bushing as required for pass through

RFB6 and RFB6E Series Boxes are configured with
non-removable partitions containing pre-installed
plugs. Depending on wiring configuration, plugs may
be replaced with included bushings for wire pass
through. This may be done pre- or post-pour.

CONCRETE POUR:

Step 6. Level box, adjust to required height, and secure in place.

/16"

1
2mm]

[

1/4"

3
83mm]

[

RFB6 Series – Insert the rectangular mudcap in plastic
collar. Pour concrete 1/16” above top edge of plastic collar.

WARNING: Pours of 1/4” (6 mm) or more over box housing will

ake it difficult to break out the mud cap and cause

m
excessive concrete spalling.

djust RFB6 1/16" [2mm]

A

elow screed line

b

(RFB4E & RFB6E Series) Pour concrete flush with top of
steel cover plate.

Step 7. RFB4E & RFB6E Series with Finished Concrete Floor

Attach Terrazzo / Bare Concrete Kit Cat. No.
RFB4E-CTR or RFB6E-CTR to floor box prior
to concrete pour. Remove and discard steel
cover plate. Attach round edge barrier to
plastic collar on box using four (4) #8 flat head
screws. Insert round plastic cover plate into
edge barrier and attach with remaining two (2)
#8 flat head screws. Screed concrete level
with top of edge barrier.
The edge barrier will remain in place and the
round plastic cover plate will be discarded
during cover installation.

NOTE: Cat. No. RFB4E-CTR, Terrazzo/Bare

Concrete Kit. is intended for use with cover
Cat. No. 6CT. This kit will not work with
Furniture Feed Cover, Cat. No. 6CFFTC.

Cat. No. RFB6E-CTR, Terrazzo/Bare
Concrete Kit is intended for use with Cat.
No. 8CT.

Plastic Cover Plate

traight Through Hole – align with

S
isolated hole on plastic collar

ountersink hole – align with

C
hole adjacent to collar ear

Edge Barrier

Plastic Collar

Screw hole adjacent to
plastic collar ear

Align four (4) countersink holes in edge barrier with four
(4) holes adjacent to plastic collar ears and mount with
four (4) #8 screws.

AFTER CONCRETE POUR:

Step 8. RFB4E & RFB6E Series with Terrazzo over Concrete Floor (If needed)

Remove the flat steel plate and replace with the
Terrazzo / Bare Concrete Kit Cat. No. RFB4E
CTR or RFB6E-CTR as shown in Step 7. Pour
terrazzo flush with top of the edge barrier.

2

Terrazzo over-pour

Edge Barrier

Concrete