Thomas & Betts 68-HP-FMK Installation Manual

68-HP-FMK

FLUSH MOUNTING KIT

Installation Instructions

IMPORTANT: Read all instructions before installing oor box, carpet plate or mounting kit.

WARNING

RISK OF SHOCK, DISCONNECT

POWER BEFORE INSTALLATION.

Catalog Number

68-HP
68-HP-C1

68-HP-FMK
and
68-HP-FC-XXX

SOLD SEPARATELY

68-HP-FC-XXX Cover

1.0 Floor Box Activation and Floor Preparation

2.0 Flush Mounting Kit Installation

3.0 Cover Installation

4.0 Removal of Cover and FMK Ring (Only when necessary)

5.0 68-HP Optional Available Parts

Floor Box should be installed by a qualied

electrician in accordance with national and local

Table of Contents

(4) Cover Screws

Devices not
included

CAUTION

electrical codes.

IMPORTANT: GFCI devices
and round twistlock devices
can be used only in the center
gang. All other standard
duplex or decora style power
or data devices can be used
in any gang.

SOLD SEPARATELY

Series Floor Box

FIGURE 1

68-HP-FC-FMK

Flush Mounting

Mounting Kit

68-HP

68-HP

68-HP-C1

THE FOLLOWING PARTS ARE
REQUIRED FOR COMPLETE
INSTALLATION:

• 68-HP Series Floor Box

• 68-HP-FC-FMK Flush Mounting Kit

• 68-HP-FC-XXX Cove

r

TA04582 B Page 1 of 4

1.0

Floor Box Activation & Floor Preparation

1.1 Floor box must already be set in concrete according
to instructions furnished with oor box.

1.2 Remove temporary cover from 68-HP or 68-HP-CI
oor box. Cut top of box ush with concrete oor.

CAUTION

Box must be cut square and parallel with

concrete oor surface (see Figure 2).

1.3 Install oor covering and trim hole around oor box
opening to 7” diameter (see Figure 3).

1.4 Measure depth of oor box from nished oor to
bottom of the box and cut voltage divider so that
when it is inserted in the oor box, the top of the
divider is 2-1/2” ±1/8” below the nished oor
surface (see Figures 4 and 5).

1.5 Place the voltage divider in box. The ribbed side of
the divider must face the power side. The letters
“HP” will be visible in bottom of the box when
divider is in c

orrect orientation (see Figures 5 and

6).

Finished Floor Concrete

Power Side Data Side

Ribbed side
of Voltage
Divider must
face Power
Side of box

Voltage
Divider

Bottom
of Floor
Box

2-1/2”

FIGURE 4

±1/8”

Measure
depth of
box from

nished
oor (see
Step 1.4)

FIGURE 2

Temporary
Box Cover

FIGURE 5

Power

Side

Voltage

Divider

Voltage
Divider

Keep this
side

CUT

For cut height,

See Step 1.4

Data
Side

TA04582 B Page 2 of 4

Trim hole in
Floor Covering
to 7” diameter
centered around
opening

When Divider is installed “HP”

FIGURE 6FIGURE 3

must be visible at bottom of box.

2.0 Flush Mounting Kit Installation

2.1 IMPORTANT: Before removing knock-outs, please note that
GFCI and round twistlock devices can only be used in the
center gang.

2.2 Ring bottom has a power data knock-out in each gang.
Determine if the center or side gangs will be used for power or
data. Trim power or data knock-out panels from ring bottom
as required for YOUR installation. THE THREE GANGS CAN
BE CONFIGURED FOR ANY COMBINATION OF POWER
AND/OR COMMUNICATIONS. In the Example Installation
below, 2-power knock-outs and 1-data knock-out have been
removed (see Figures 7 though 10 ).

2.3 A wire slot is provided in one of the side gang power knock­outs for the cover ground wire path. If this knock-out is
removed, the ground wire can pass through opening (see
Figures 7 and 8).

2.4 Align tab on mounting ring with notch in bottom and assemble
ring bottom to ring using (2) screws furnished (see Figure 8).

2.5 Select power and data devices to be installed and remove
all side mounting ears on devices. When required, trim data
mounting straps to 3/4” wide (see Figure 9).

2.6 Verify voltage divider is in oor box. Voltage divider must be
cut to correct height, see step 1.4. Ribbed side of voltage
divider must face power side of interior of oor box (see
Figures 4 and 10).

2.7 Pull power (electrical) conductors and ground wires up through
power side of oor box and through power knock-outs in FMK
ring. Install power devices and make connections to power
devices according to local and national electrical codes.
Power wires not used for devices can pass through box (see
Figure 10). IMPORTANT: Do not lower FMK ring into oor box
until cover is secure to ring.

2.8 Connect FMK ring ground wire to an electrical ground wire
from box according to local and national electrical codes (see
Figure 10).

2.9 Pull data cable up through data side of oor box (smooth side
of voltage divider) and through data knock-outs in FMK ring.
Make connections to data devices and mount to ring. Data
cable not used for devices can pass through box (see Figure

10). IMPORTANT: Do not lower FMK ring into oor box until
cover is secure to ring (see 3.0).

Example Installation

Wire slot
provided for
ground wire
(see Step 2.3)

Example Installation

Align Tab
and Notch

Ring Bottom

Screw

FIGURE 8

Example Installation

Duplex

GFCI can be
used only in
center gang
see step 2.1

FIGURE 9

Example Installation

Device screws

Duplex

Power

Ground

Data
through
box

SIDE

GANG

Mounting
Ring

FMK Ring

shown

assembled

Ground Wire passes
through wire-slot when
knock-out is not removed
(see Step 2.3)

CENTER

GANG

SIDE

GANG

Data

See Step

2.5

3

”

4

/

GFCI

Data Device

IMPORTANT:

Do not lower
FMK ring
into oor box
until cover is
installed to ring

Data

SIDE

GANG

CENTER

GANG

SIDE

GANG

The FMK ring bottom used in this figure is
configured for 2-power gangs and 1-data
gang. Remove one knock-out from each
gang depending on service.

FIGURE 7

Trim each
knock-out
panel with
utility knife

Power
through
box

FIGURE 10

TA04582 B Page 3 of 4

3.0 Cover Installation

3.1 Place duplex inserts over any duplex devices
(See Figure 11).

3.2 Place decora side and center plates over devices
(see Figure 11).

3.3 Use (4) screws furnished and secure cover to 68-HP-FMK
mounting ring.

3.4 Applying sealant to oor:

3.4.1 Concrete and Carpet: Concrete and carpet: Apply

moderate amount of sealant or caulk directly to
concrete oor fully around box opening. (about
1/8” from outside edge of box). Use enough
sealant to block water entry (see Figure 11).

3.4.2 Tile, Wood and Linoleum: Apply moderate amount

of sealant directly on nished oor. Fully surround
7” diameter opening in oor. Use enough sealant to
block water entry (see Figure 11).

3.5 Verify guide ribs on FMK ring are aligned with divider and
grooves in oor box. Power knock-outs in FMK ring must
be positioned over power compartment in box. Lower
FMK and cover assembly into oor box opening. Close
lid and push cover down fully to seat cover to oor (see
Figures 11 and 12). Clean excess sealant around cover
edge.

4.0 Removal of Cover and FMK Ring

(ONLY WHEN NECESSARY)

4.1 Remove the cover 68-HP-FC-XXX. Remove the (2)
screws holding the retainer clips (see gure 11). The FMK
ring can be lifted out of box when the retainer clips are
disengaged from the ring.

FIGURE 12

5.0 68-HP Optional Available Parts:

5.1 The 68-HP can be outtted with other power and data
plates to meet your oor box requirements. Shown below
are some of the plates Thomas & Betts offers. Consult
the catalog or website for further details (see Figure 13).

A. 68-HP-DPS-DEC Side Plate Kit (Decora or Duplex)

B. 68-HP-DPC-GFCI Center Plate Kit (GFCI, Decora or Duplex)

C. 68-HP-DPC-R Power Plate (1-9/16” Round)

D. 68-HP-DPS-2MAAP 2-Extron MAAP Plate-Side

E. 68-HP-DI Duplex Insert

F. 68-HP-BI Blank Insert

G. 68-HP-DPC-2MAAP 2-Extron MAAP Plate-Center

H. 68-HP-DPAV-EXT Extron, 3-AAP, 2-MAAP

(2) side decora
device plate and (1)
center decor device

E

A

plate furnished

Remove (2) screws
holding retainer
clips to remove
FMK Ring from
box. (see Step 4.1)

(3) Duplex
inserts
furnished

H

B

C

F

Align ribs on FMK

Power side

Apply sealant
to block
water entry
(see step 3.4)

Ring with divider
and grooves in box
(see step 2.0)

Data side

G

D

FIGURE 13FIGURE 11

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 ninety (90) days 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.

TA04582 B Page 4 of 4

Thomas & Betts Corporation

Memphis, Tennessee

www.tnb.com

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