1
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complete user guide,
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instructions
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EWB 210 Series • Installation Guide
Overview
The Extron EWB 210 Series consists of a one-gang (EWB 211)
and two-gang (EWB 212) EU external wall box. These boxes
provide complete compatibility in t and nish with Extron EU
devices and assist with cable management. Figure 1 shows a
typical application for the EWB 212.
This guide provides basic instructions for installation of either
model by an experienced installer.
Equipment Needed but not Provided
• Stud detector • Cable raceway (optional)
• Electric drill • Fasteners for wall mounting
(see the table below in the Wall
mounting holes section)
• Screw driver
• Small wire cutters
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MLC 55 RS EU
EWB 212
Figure 1. Typical Application for EWB 210 Series Wall Box
EWB 211 and EWB 212 Mounting Holes
The EWB 212 can be mounted directly to the wall or to an EU junction box. Use the mounting holes shown in gure 2.
EWB 212EWB 211
AAA
AA
A
B
B
B
BBB
B
B
C
CC
C
D
D
D
D
EE
EE
FF
F
F
F
F
Figure 2. EWB 211 and EWB 212 Mounting Holes
A
Device mounting holes — EWB 211 has two, EWB 212 has four. Use M3 screws.
B
EU junction box mounting holes — both models have two (60 mm center to center).
C
Wall mounting holes — both models have four. Use screws and fasteners that are appropriate for the wall.
Wall Type Fastener Minimum Size
Fastener
Quantity Drill Bit Size Notes
Dry wall Toggle bolts 3/16 inch at least 2 1/2 inch Wall thickness 3/8 inch minimum
Solid wood Wood screws #6 at least 2 1/8 inch Wall thickness 3/8 inch minimum
Masonry Masonry screws 3/16 inch at least 2 5/32 inch masonry bit Do not mount to masonry joints.
D
Hole for optional M3 hex grounding screw.
E
Hole for optional #6 hex grounding screw.
NOTE: The nuts and screws are not provided.
F
Knockout covers — EWB 211 has two, EWB 212 has four (see Knockout Covers on the next page).
gure 2
wall mounting holes table
2
68-2875-01 B 03 18
EWB 210 Series • Installation Guide (Continued)
© 2016 - 2018 Extron Electronics All rights reserved. All trademarks mentioned are the property of their respective owners. www.extron.com
Installation
The EWB 210 series wall boxes can be mounted directly to a wall or to an existing
in-wall EU junction box. The illustrations for this procedure show the EWB 212.
Mount the EWB 211 in the same way.
Decide where to mount the wall box and how to run cables to it. You can use any
of the two openings in the EWB 211 (right and left sides) or four openings in the
EWB 212 (one on each side) with a surface raceway.
Fill any unused openings with knockout covers, as described below.
Knockout Covers
The rear panel has two (EWB 211) or four (EWB 212) covers that can be removed
to ll the openings that are not used.
1. Use small wire cutters to cut the plastic attaching the knockout cover to the
wall box.
2. Ensure the knockout cover is in the correct orientation and slide it into place.
NOTE: The larger knockout covers (see gure 4,
A
) have smaller
knockouts nested inside (
B
).
Use small wire
cutters to re
move
knockout cover.
1
U
se sm
a
c
utters t
o
k
n
oc
k
ou
1
Slide knockout
cover onto slots.
2
S
lide kn
o
c
over o
n
2
Figure 3. Covering Knockouts
Wall Mounting
1. If required, locate the center of a wall stud and hold the wall box
where it will be mounted.
2. Mark the position of the four wall mounting holes (see gure 4).
Wall studs should be used where possible. If they are not
available, use appropriate fasteners to secure the screws.
3. Select a suitable fastener and drill the holes (see the wall
mounting holes table on the previous page).
4. If required, insert a grounding screw (not provided, see figure 2,
D
and
E
on the previous page).
5. Fasten the wall box to the wall.
6. If required, install a cable raceway to manage the cables.
2.36"
(60 mm)
4x 0.19" Ø
(4.8 mm)
1.97"
(50 mm)
1.97"
(50 mm)
2.76"
(70 mm)
2.36"
(60 mm)
1.97"
(50 mm)
3.94"
(100 mm)
2.36"
(60 mm)
4x 0.19" Ø
(4.8 mm)
AA
B
B
Figure 4. Mounting Holes Dimensions
Mounting to an Existing In-wall EU Junction Box
EWB 212
EU Box
B
212 M3 mounting holes (4)
Figure 5. Mounting to an Existing EU Junction Box
1. Align the mounting holes of the wall box with the two holes
in the EU junction box (see figure 2,
B
).
2. Secure the wall box to the junction box, using M3 screws.
Completing the Installation
1. Run and connect cables to the device, following the
instructions in the device user guide.
2. Mount the device (see gure 6).
MLC 55 RS EU
EWB 212
WB 212
RESET
OFF
ON
Figure 6. Completing the Installation
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