GE M2AC Specification Sheet

GE

ROADWAY LIGHTING

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Lighting Solutions

GUIDE FORM SPECIFICATIONS
M-250A2 POWR/DOOR ® LUMINAIRE WITH CUTOFF OPTICS

GENERAL DESCRIPTION

The complete luminaire designated _______ (identify) shall be
a GE M-250A2 POWR/DOOR® WITH CUTOFF OPTICS roadway
luminaire, ordering number _______ (specify M2AC, M2AT,
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], [175 or 250] watt metal
halide or [100, 175 or 250] watt mercury) lamp from a nominal
_______ (specify 120, 208, 220, 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. Some units may
be cUL Certified. Contact factory. There shall be an option of
UL listing for selected units. Standard construction for enclosed
and gasketed luminaire is IP55.

MECHANICAL CONSTRUCTION

The luminaire shall include a precision die-cast aluminum hous­ing, optical door with lens and hinged and removable powr/
module door. Housing and doors shall have an electrocoat gray
paint finish. The internal slipfitter shall contain two bolts which
do not pass through the housing but tighten from below with
powr/module door in dropped position. The one-piece 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 be adjustable ±4° from horizontal. 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 on the optical
door requiring no tools and operable with lineman’s gloves.

BALLAST OPERATION

There shall be a Powr/Module ballast assembly with all bal­last components mounted on the die-cast powr/module door
(M2AC) and easily removable and replaceable through the use
of quick disconnect plugs. With the M2AT, the ballast shall be
mounted in the top housing. 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 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 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 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 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.