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This floor box is designed to be mounted on 
a joist or subfloor. It can be installed on the 
top of the joist or from the bottom if the 
thickness of the joist is sufficient to allow 
installation of the box. If the unit is to be 
installed from the bottom of the joist, check 
prior to installation to ensure there is 
sufficient adjustment remaining as this type 
of installation is non-standard.

The unit can also be installed using the old 
work (small) bracket that is included. This 
bracket facilitates the installation of the box 
in areas where the larger new work bracket 
cannot be used. The old work bracket edge 
is hidden by the cover when installed. 
However, before cutting into the wood, you 
must ensure that the mounting screws will 
properly support the bracket/box installation.

For planning purposes please ensure that 
the maximum installed height to the bottom 
of the cover does not exceed 1-3/4” above 
the top of the mounting bracket.

The kit is listed as a floor box by 
Underwriters Laboratories. The kit also has a 
two (2) hour fire classification. Only covers 
manufactured for this box can be used with 
this assembly.

Floor box kit should be installed by a 
certified electrician.

Install clip over subfloor.

Screw in to adjust to height

of flooring or carpet. 

Beautiful flush fit every time!

WARRANTY:

 Thomas & Betts sells this product with the understanding that the user will perform all necessary 

tests to determine the suitability of this product for the user's intended application.  Thomas & Betts warrants that 
this product will be free from defects in materials and workmanship for a period of two (2) years following the 
date of purchase. Upon prompt notification of any warranted defect, Thomas & Betts will, at its option, repair or 
replace the defective product or refund the purchase price.  Proof of purchase is required. Misuse or unauthorized 
modification of the product voids all warranties.

Limitations and Exclusions:

  THE ABOVE WARRANTY IS THE SOLE WARRANTY CONCERNING THIS PRODUCT, 

AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY 
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE 
SPECIFICALLY DISCLAIMED. LIABILITY FOR BREACH OF THE ABOVE WARRANTY IS LIMITED TO COST OF 
REPAIR OR REPLACEMENT OF THE PRODUCT, AND UNDER NO CIRCUMSTANCES WILL THOMAS & BETTS BE 
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

INSTALLATION INSTRUCTIONS

WARNING

RISK OF SHOCK, DISCONNECT 

POWER BEFORE INSTALLATION.

Summary of Contents for Thomas&Betts Carlon B121BFBR

Page 1: ... need Adjustable Floor Box Kit with Ivory Cover Kit includes Nonmetallic Ivory Cover Adjustable 20 cu in Nonmetallic Floor Box Duplex Receptacle Molded Cable Clamps Mounting Bracket All Mounting Hardware Floor Box 655A THE FAST EASY WAY TO PUT A PLUG ANYWHERE YOU NEED IT Can be used for new and existing construction 0 3 4 4 8 1 1 4 9 1 4 9 F P O For Positioning Only ...

Page 2: ... installed by a certified electrician Install clip over subfloor Screw in to adjust to height of flooring or carpet Beautiful flush fit every time WARRANTY Thomas Betts sells this product with the understanding that the user will perform all necessary tests to determine the suitability of this product for the user s intended application Thomas Betts warrants that this product will be free from def...

Page 3: ...sh cover into the box until rib on bottom of cover engages with box 7 Insert the two 2 6 32x1 flat head machine screws in the holes in the cover ensuring that the screw is aligned with and captivates the receptacle DO NOT OVER TORQUE Tighten the screws to a maximum of 6 to 8 inch pounds Ensure bottom of cover flange is flush with top of box 8 Remove the plug on the cover that hides the adjusting s...

Page 4: ...Two 2 6 32x1 Flat Head Machine Screws Four 4 6x1 1 4 Flat Head Self tapping Screws Two 2 6 Square Drive Trim Head Screws One 1 Tube Dow Corning 4 Sealant Installation Instructions Thomas Betts Corporation Memphis TN 38125 2016 Thomas Betts All Rights Reserved www tnb com CAUTION The floor box has undergone a scrub water test as required by UL under criteria specified in 514C for this type of appli...

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