Extron Electronics EWB User Manual

EWB Series External Wall Boxes • Installation Guide

The Extron EWB Series External Wall Boxes allow a variety of Extron products to be mounted to the surface of an interior wall. The 2.5 inch (6.4 cm) depth accomodates an Extron product and cabling. This guide provides information for a qualiﬁed, experienced installer to install an EWB wall box.

EWB External Wall Box Models

Model Part Number

60‑1161‑02, ‑03 60‑1162‑02, ‑03

60‑1163‑02, ‑03 60‑1164‑02, ‑03 60‑1165‑02, ‑03

EWB 103

3-gang EWB

EWB 101

1-gang EWB

EWB 104

4-gang EWB

EWB 102

2-gang EWB

EWB 105

5-gang EWB

EWB 101

(black, white)

EWB 102 (black, white) EWB 103 (black, white) EWB 104 (black, white) EWB 105 (black, white)

Surface Raceway Knockouts

Size Dimensions Quantity

Small

Large

0.9” H x 0.75” W (2.3 cm H x 1.9 cm W)

0.95" H x 2.0" W (2.4 cm H x 5.1 cm W)

per EWB

Recommended Fasteners

Choose the appropriate type of screw or bolt for the wall (see table below). The mounting holes in the back of the EWB accommodate screws up to ¼ inch in diameter.

Wall Type Fasteners Min. Size Fastener

Quantity

Drill Bit Size Notes

Drywall Toggle bolts 3/16 inch At least 4 1/2 inch Min. 3/8 inch wall thickness Solid wood Wood screws #10 with a washer At least 4 Not required Min. 3/8 inch wall thickness Masonry Masonry screws 1/4 inch At least 4 3/16 inch masonry bit Do not mount to masonry joints.

Grounding

The rear inside panel has a PEM® #6‑32 insert for grounding; a grounding screw is included with each EWB.

Mounting the EWB

NOTES: This unit must be installed in accordance with the National Electrical Code and with all local codes.

 Ensure that the installation meets the local and state regulatory requirements, including building,

electrical, and safety codes, and UL and ADA accessibility requirements.

 Ensure that there are no utility cables or pipes at the intended location that might be damaged or cause

injury when installing the wall box.

The EWB can be mounted on any interior wall type. Knockouts allow for conduit or raceways to be run from the top, bottom, or back of the box. Install the cables into the wall or conduits before mounting the EWB wall box or installing any devices in the EWB. The installation instructions apply to all models.

Installing the EWB Onto a Wall

1. If mounting to standard wood wall studs, locate the center of the studs.

2. Place the EWB against the wall in a suitable location. Use a level to ensure the box is

horizontal, and mark the position of the four holes.

3. If required, drill four holes into the wall.

4. Insert four screws (see the table above) and attach the EWB to the wall.

Mounting Screws (4)

EWB Series External Wall Boxes • Installation Guide (Continued)

Attaching the EWB to an Existing In-wall Junction Box

This procedure is to be used if a standard electrical junction box is already installed in the wall.

If a junction box is not already installed, follow the instructions in “Installing the EWB Onto a Wall.“

NOTE: The size of the in‑wall junction box does not

have to match the size of the EWB as long as the junction box is not larger than the EWB.

Mount the EWB to an existing junction box as follows:

1. Align the EWB with the opening of the junction box. Center

the EWB in front of the junction box if possible.

2. Attach the EWB to the junction box using #6‑32 pan head

screws (not included) (see ﬁgure 1).

Figure 1. Mounting the EWB to an In-wall Junction Box

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68-649-02 Rev. B 08 11