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12-Inch Aluminum Signal
Features
Tested to ITE required wind loading on
single-point attachment

Straight sides - no protruding hinges or
latches
Stainless steel hardware
Reversible door - left side standard, right
side optional
Aluminum or plastic reflector ring with
spun ALZAK reflector
Optional hydroformed reflector
Provisions for 2, 5 or 6-position terminal
blocks in each housing

Ethylene Propylene Diene Monomer (EPDM)
or optional red silicone lens gasketing


12-Inch Aluminum Signal
Each traffic signal consists of a number of identical
signal sections rigidly fastened together to present a
continuous, pleasing appearance. Each section has
a separate and complete housing. The traffic signal
meets or exceeds the latest version of the Equip-
ment Standard from the Institute of Transportation
Engineers (ITE).
Housing
The housing of each section is a one-piece corrosion-
resistant aluminum alloy die-casting. Two inte-
grally-cast hinge lugs and latch screws are cast on
each side of the housing. Built upon a symmetrical
concept, each housing is capable of providing either
right or left-hand door openings. While the left
hinge is standard, the right hinge is special and must
be specified. The top and bottom of the housing have
openings to accommodate standard 1½-inch pipe
brackets. Each signal section is rigidly attached,
one above the other, by means of corrosion-resistant
bolts and washer attachment that allow sections to
be rotated about a vertical axis as well as the ability
to be oriented with respect to an adjacent section.
The top and bottom openings of the signal housing
have an integrally-cast Shurlock boss. The radial
angular grooves of the Shurlock boss, when used
with Shurlock fittings, provide positive five-degree
increment positioning of the signal head to eliminate
rotation or misalignment of the signal. Each housing
has cast bosses for two, five or six-position terminal
General
blocks. Each position is identified with both number
and function cast on housing. Each housing has pro-
visions for easily adding a back-plate. Hinge pins,
door latching hardware, visor back-plate, and lens
clip screws are high-quality stainless steel.
The signal head is interchangeable with incandescent
reflector assemblies or LED modules and offers the
option of custom hardware color. 3360 E. La Palma, Anaheim, CA 92806-2856
Tel: (714) 630-3700 Fax: (714) 630-6349
E-mail: sales@econolite.com
www.econolite.com
21201E0107-1
© 2007 Econolite Control Products, Inc. All rights reserved. Econolite Control Products, Inc. reserves the right to change
or update these specifications at any time without prior notification
Housing Door
The housing door of each section is a
one-piece, corrosion-resistant, alumi-
num alloy die-casting. Two hinge lugs
are cast on one side of the door, and
two latch points are cast on the other
side. The door is attached to the hous-
ing by means of two straight pins. Two
eye bolts and wing nuts on one side
of the door allow for opening and clos-
ing of the signal door without the use
of tools. A gasket groove on the inside
of the door accommodates a weather-
proof and mildew-proof resilient gasket
which, when the door is closed, seals
against a raised bead on the housing,
creating a positive seal. The outer
face of the door has four holes, equally
spaced about the circumference of the
lens opening, with four screws to ac-
commodate the signal head visor. The
door has at least two index points to
enable positive orientation of the lens.
The door and visor overlap to prevent
light escaping between the visor and
door.
Optical System
Lens
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The prismed traffic signal lens
is standard red, yellow, or green and
conforms to the latest revision of the
ITE standard specification. The lens
fits into a specially designed, slotted,
extruded, and bonded full-circle EPDM
lens gasket designed to fit the housing
door so as to exclude moisture, dust,
and road film. The lens and gasket are
secured to the door with four aluminum
lens clips and stainless steel screws.
The lenses are polycarbonate, glass, or
LED modules, as specified.
Reflector
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The reflector assembly
consists of a glass-filled polycarbonate
or aluminum reflector ring (or optional
unitized hydroformed ALZAK aluminum
reflector). The assembly is pivoted in
the signal housing on two stainless steel
pins so that it can be easily opened to
service the unit. The entire assembly
can be easily removed for maintenance
or service without the use of tools.
Lamp Receptacle
-
The pre-
focused, molded phenolic lamp recep-
tacle is equipped with a lamp grip to
prevent the lamp from coming loose
due to vibration. The receptacle is able
to be rotated to allow proper orienta-
tion of lamp filament.
Bail
-
The bail is a corrosion-resistant
piano wire assembly that secures and
orients the socket to the reflector.
Wiring
Each receptacle provides two leads
with Fast-on-type terminals. Wires
are color coded per customer specifica-
tions.
Lamp receptacle conductors are No.18
AWG (or larger) 600V appliance wiring
material, which conforms to Military
Specification MIL-W-16878 D, Type-B
with a vinyl nylon jacket rated 115°C.
Terminal Block
Each signal face is provided with a
terminal block. The terminal block for
a standard three-section head is a five-
or six-position, ten or twelve-terminal,
barrier-type strip. Attached to one
side of each Fast-on terminal strip
are section leads, leaving the opposite
screw-clamp terminal for field wires.
Visors

Visors are tunnel, full-circle, or cap,
and are a minimum of 9½ inches long.
Visors are formed of corrosion-resistant
aluminum alloy sheet. They have at-
taching tabs to facilitate installation.
Painting

All interior and exterior parts of the
housing, door, back-plate, and visor
are pre-treated for painting in the fol-
lowing stages: Degrease, rinse, etch
with an iron phosphate solution, rinse,
final dionized water rinse, and then
dry for 10 minutes at 400°F. The parts
are then painted with a single coat of
environmentally-safe, ultraviolet-resis-
tant, polyester powder coating which is
applied electrostatically at 90 kV and
baked for 20 minutes at 400°F per ASTM
D-3359, ASTM D-3363, and ASTM D-522.
The signal head color is specified by the
customer, except for the inside of the
visor and the front side of the back-
plate which are painted dull black.
Standard Colors Are:
Dark Olive Green (matches Federal
Standard 595b-14056)
Yellow (matches Federal Standard
595b-13538
Black (matches Federal Standard
595b-17038)
Dull Black (matches Federal
Standard 595b-37038)
Technical Data
Dimensions (less visor) 14¼ in. H x
12
5 8
in. W x 7 in. D
Weight, typical:
Poly lens = 8.85 lb (less visor)
Glass lens = 10.50 lb (less visor)
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