GE M-250R2 Specification Sheet

GE

ROADWAY LIGHTING

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Lighting Solutions

GUIDE FORM SPECIFICATIONS
M-250R2 LUMINAIRE WITH CUTOFF OPTICS

GENERAL DESCRIPTION

The complete luminaire designated _______ (identify) shall be
a GE M-250R2 WITH CUTOFF OPTICS roadway luminaire, or­dering number _______ (specify M2RC, plus ordering number
logic from catalog) or approved equal, to operate one _______
(specify [50, 70, 100, 150(55V), 200 or 250] watt high pressure
sodium [HPS] or [100, 175 or 250] watt mercury) lamp from a
nominal _______ (specify 120, 208, 220, 230, 240, 277, 347 or

480) volt , 60 Hz or (220, 230 or 240) volt, 50 Hz power source
and shall be capable of starting and operating the specified
lamp within the limits specified by the lamp manufacturer. The
luminaire shall contain a completely prewired integral ballast
and an optical assembly that shall provide an IES Distribu­tion Type _______ (specify according to photometric selection
table). Labeling shall be in accordance with ANSI standards.
Standard construction is IP55.

MECHANICAL CONSTRUCTION

The luminaire shall include a precision die-cast aluminum up­per and lower housing with an electrocoat gray paint finish.
Lower housing shall be hinged and separable and shall hold
the lens in place. The internal slipfitter shall contain two bolts
which do not pass through the housing but tighten from below
with lower housing in dropped position. The one-piece serrated
pipe clamp shall be capable of adapting to 1 1/4 - through
2-inch (42 through 60 mm) pipe without rearrangement of
clamp or bolts, and shall allow positive leveling ±4° from hori­zontal in 2° increments using stair step notches. There shall be
an optional prewired no-tool photoelectric control receptacle.

There shall be a polymer bird guard, shipped installed and an
external quick-release stainless steel bail latch requiring no
tools and operable with lineman’s gloves.

BALLAST OPERATION

The luminaire shall contain a standard _______ (specify) type
ballast* in full compliance with lamp-ballast specifications
available to the fixture manufacturer from the lamp manufac­turers at the time of fixture manufacture. The ballast shall be
prewired to the lamp socket and dead-back terminal board,
requiring connection of power supply leads to the terminal
board only. The plug-in ignitor for HPS lamps shall be remov­able without the use of tools.

The ballast shall reliably start and operate the lamp in ambient
temperatures down to -20°F for mercury and metal halide or

-40°F for HPS.
The luminaire and ballast shall be from the same manufacturer.

OPTICAL ASSEMBLY

The cutoff optical assembly shall include a precision formed
aluminum reflector with a chemically-bonded lightweight
non-breakable ALGLAS® finish on both the inside and outside
surfaces providing corrosion resistance, durability and ease
of cleaning, and a _______ specify heat/impact-resistant tem­pered flat glass lens or acrylic, glass or polycarbonate resin
clear globe (for lamps over 150-watt , use glass lens only). The
cutoff optical assembly shall allow no light above 90° with use
of flat glass lens (true 90° full cutoff characteristics).

The cutoff optical assembly shall have a _______ specify non­wicking felt gasket which acts as filter by excluding particulate
contamination when the luminaire is closed, or _______ specify
an elastomer gasket , around the edge of the reflector with an
activated charcoal filter to permit passage of air and therefore
allow for breathing of the luminaire during normal off-on heat­ing and cooling cycles, filtering out gaseous contaminants such
as hydrocarbons.

The optical assembly shall contain an adjustable E39 mogul
base socket with superior lamp gripping. The socket shall have
added insulation, giving it the ability to handle the higher pulse
ratings of newer HID systems.

* REFER TO PRODUCT PAGE FOR BALLAST
SELECTIONS. FOR MORE DEFINITIVE INFORMATION, REFER TO
BALLAST SPECIFICATIONS IN TECHNICAL DATA SECTION.

Guide Form Specifications – 2011

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© 2011 GE Lighting Solutions. Information provided is subject to change without notice. All values are design or typical values when measured under laboratory conditions.