INSTALLATION
MANUAL
MODEL 773 SERIES
REINFORCED CRASH ARM
B&B ARMR: A Division of B&B Roadway and Security Solutions
Page 15 of 38
0773-9001 Rev D
B&B ARMR reserves the right to change any information concerning product or specification without notice or obligation.
The installation requires a minimum of three conduits. One minimum 1 in. (25 mm)
diameter PVC conduit for the power cables, and two minimum ¾" (19 mm) diameter
PVC conduit for the control and safety loop cables. See
recommended conduit and wiring sizing
for basic 773 Series requirements. Additional
conduits may be required for traffic lights, loop detectors and other options. See options
section for conduit information.
All conduits, fittings, sweeps, and couplings must be electrical grade (gray
color); do not use plumbing type (white color).
773 SERIES RECOMMENDED CONDUIT & WIRE SIZING
DESCRIPTION WIRES AWG VOLTAGE CURRENT
CONDUIT
NOTES
Primary Power
4
10
Varies
20 A
1 in. (25 mm)
< 100 ft. (31 m) one
way
Safety Loops
2
14
n/a
n/a
¾ in. (19 mm)
by others
Control Panel
18
18
24 VDC
50 mA
¾ in. (19 mm)
1x dual lane panel
only
Options
See Section 3.3.9.
Table 2 – 773 Series recommended conduit and wiring sizing
Contact B&B if you are unclear about the conduit requirements for your installation.
3.3.2.1.
Rebar cage – Construct two (2) rebar cages as specified in
Details (see Section 6 at the end of this manual). Build cages using
rebar as specified in
specifications. Tie the rebar with #4 ties as specified in section 6
Specifications.
An Installation Kit, KTPI-773R, containing partially assembled rebar cages
is available from B&B as an option. Please refer to the submittal package
for details on ordered options. If you have questions on Installation Kits,
please contact B&B for assistance.
