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This floor box is furnished with a Nickel Silver cover & 15A Receptacle, and a Very heavy duty cast iron box. Can be used for both Wood and Concrete floors. Additional covers that work with these boxes are the AP-TCP Series at 5-3/4 inch round in brass and aluminum, or our AP-PFC series heavy plastic covers. Also the AP-812-MKM double hole saw is a convenient method for cutting the wood floor, as it's almost mistake proof!
(Size: 4" x 3-1/8" 14.5 cu. in. interior)
Available 4" covers for this box above. Solid Brass, Aluminum, and some Nickel Silver
1. For wood floors
a. Using a 4” hole saw, make a cut in the flooring to a depth equal to the thickness of the cast
flange and cover assembly being used on the floor box.
b. Center a 3.5” hole saw in the 4” opening and cut through all remaining layers of flooring.
This will create a lip for the flange of the box to rest on.
c. Remove cover assembly and wiring device from floor box.
d. Drop box body into the opening and secure using #6 wood screws (not provided) through
the countersunk slots in the cast flange and into the underlying wood.
e. After wiring and installing electrical or communication devices to the floor box and ground
screw (if applicable), replace the cover plate assembly using #8/32 x ½” screws provided.
f. If an uneven cut was made into the flooring, goof rings (TCP-GR1) can be used in conjunction
with the original cover assembly or oversized covers (TCP series) can be used in place of the
original cover assembly.
g. For carpeted areas, use SCF-1 placing on top of floor box (cover assembly removed first),
then inserting cover assembly into carpet flange. Use 1.25” longer screws provided through
the cover assembly and that will affix to the floor box.
h. For tile applications, order part #812 (box body only) and a TCP style cover. Follow steps a-d
above. After wiring in step e, install mounting plate and gasket, then place TCP style plate
on top of floor and use #8/32 X ¾” screws provided.
2. For concrete floors
a. Not recommended for new construction as no concrete cap is provided and this is a nonadjustable box.
b. Core out 4 ¼” into concrete as deep as needed to accommodate height of box and ability to
affix conduit from underneath.
c. Backfill concrete if necessary to close gaps in floor.
d. Follow steps c-h above.