Legrand 881 User Manual

Ratchet-Pro PVC Floor Box

INSTALLATION INSTRUCTIONS

Installation Instruction No.: 1 003 709 R1 – Updated July 2004

Walker® 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. Walker 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.

Products Covered: 881 Floor Box

CONCRETE PREPARATION:

1. Cement conduit closure plugs to unused ports or use
conduit reducers if reduction from 1" trade size is
required. Knockout must be removed from closure
plug for use with 3/4" trade size conduit.

For use in 3" [76.2mm] minimum concrete pours.

3. Cut the conduit to length and cement to ports or reducers.
Install concrete cap and pour concrete to desired depth using
the graduated markings on the box exterior as a guide.

2. Position box and secure to prevent floating during the

concrete pour (Orientation of the receptacle is aligned
with the conduit). For above grade, screw or nail the box
to the concrete form. For on-grade applications, drive rebar
next to the box and secure with wire.

Concrete

Depth

CAUTION: Make sure the rebar is below the screed

level of the concrete.

IMPORTANT: Please read all instructions

before beginning.

© Copyright 2004 The Wiremold Company All Rights Reserved

The Wiremold Company

U.S. and International:
60 Woodlawn Street • West Hartford, CT 06110
1-800-621-0049 • FAX [phone] • Outside U.S.: 860-233-6251
Canada:
850 Gartshore Street • Fergus, Ontario N1M 2W8
1-800-741-7957 • FAX [phone]

1 003 709 R1 0704

BOX ACTIVATION:

1. After concrete has cured, saw off the remainder of the box with
a wood saw. Box height is to be cut 1/8" [3.2 mm] below the
final height of the carpet or tile floor covering. For 1/8" [3.2 mm]
thick tile, cut the box flush with the floor.

2. Pull wires to the box (see chart below for wiring capacity for
each cover). Re-insert the concrete cap to prevent damage to
the box until the cover is ready to be installed.

Box

Volume

CAUTION: Box must be cut square and parallel with the

floor surface.

BOX HEIGHT WIRING VOLUME WIRING VOLUME WIRING VOLUME WIRING VOLUME

(with Divider) (with Divider)

Inches [mm] Cu. Inches [ml] Cu. Inches [ml] Cu. Inches [ml] Cu. Inches [ml]

6 [152.0] 65.0 [1065.0] 45.0 [738.0] 27.9 [457.0] 47.9 [784.0]

5 1/2 [140.0] 58.0 [950.0] 39.3 [644.0] 22.2 [364.0] 40.9 [670.0]

5 [127.0] 51.0 [835.0] 33.6 [551.0] 16.5 [270.0] 33.9 [554.0]

4 1/2 [114.0] 44.0 [720.0] 27.9 [457.0] 10.8 [177.0] 26.9 [440.0]

4 [102.0] 37.0 [605.0] 22.2 [364.0]

3 1/2 [89.0] 30.0 [490.0] 16.5 [270.0]

3 [76.0] 23.0 [377.0] 10.8 [177.0]

To calculate the total box
volume, use displacement
of the largest uncut
section remaining

CAUTION: Do not use

in concrete
pours less than
4 1/2" [114mm].

CAUTION: Do not use

in concrete
pours less than
4 1/2" [114mm].

Single Service

895 & 896 Activations

Dual Service

895DCC Activation

Dual Service 881CTC,
881RC4ATC, 897CTC,

897CFFTC & 899CTC

Activations

Single Service

881CM2TC,

Activations

Volume Capacities For Ratchet-Pro PVC Floor Box