Rockwell Automation Allen-Bradley Guard master 442G-MAB Series - Page 21

Rockwell Automation Publication 440G-UM001B-EN-P - May 2016 21
Installation and Wiring Chapter 3
Use the following table to determine if the extended shaft is needed 
(442G-MABASHFT ordered separately) to prepare the escape release for
smaller or larger profiles.
1
Shaft length that is required when only one mounting plate is used.
2
Shaft length that is required when two mounting plates are used for the escape release and the handle
assembly.
3
The extended shaft (442G-MABASHFT) must be ordered separately.
Figure 8 - Example with Mounting Plates [mm (in.)]
IMPORTANT The length of the actuation shaft (115 mm (4.53 in.)) is optimized for
mounting on 40 mm (1.57in.) and 45mm (1.77in.) profiles. For mounting
on profiles larger than 45 mm (or if using mounting plates on a 45mm
profile), an extended shaft is required (order separately, 442G-MABASHFT).
See the table below for instructions about sizing the extended shaft and
mounting the escape release on smaller or larger profiles.
Profile
Width
Length Required for
Actuation Shaft
Shaft Required?
3
Necessary Work Steps
Without
Mounting
Plates
With Mounting
Plates 
(4 mm each)
D D+13.5 D + 17.5
1
D+21.5
2
30 mm 43 mm 51 mm Standard shaft Shorten to required length
40 mm 53 mm 61 mm Standard shaft or
extended shaft
• Without mounting plates: shorten
standard shaft to required length
• With two mounting plates: Shorten
extended shaft and protective sleeve
to required length
45 mm 58 mm 66 mm Standard shaft or
extended shaft
• Without mounting plate: none
• With mounting plates: shorten
extended shaft and protective sleeve
to required length
50 mm 63 mm 71 mm Extended shaft Shorten extended shaft and protective
sleeve to required length
4
(0.16)
D
10
(0.39)
3.5
(0.14)
4
(0.16)
58.5
(2.30)
Handle module
Mounting plates
Escape release assembly