GE M-250A2 Specification Sheet

GE

ROADWAY LIGHTING

g

Lighting Solutions

GUIDE FORM SPECIFICATIONS

M-250A2 POWR/DOOR ® LUMINAIRE

GENERAL DESCRIPTION

The complete luminaire designated _______ (identify) shall
be a GE M-250A2 POWR/DOOR® roadway luminaire, ordering
number _______ (specify M2AR, 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 UL/cUL Certified. Con­tact factory. There shall be an option for UL listing for selected
units. Standard construction is IP55.

MECHANICAL CONSTRUCTION

The luminaire shall include a precision die-cast aluminum top
housing, optical door with refractor and hinged and removable
powr/module door. Housing and doors shall have an electro­coat gray paint finish. The internal slipfitter in the top housing
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 in top housing 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 without rearrangement of clamp
or bolts. 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 and
easily removable and replaceable through the use of quick dis­connect plugs. 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 optical assembly shall contain a precision-formed alu­minum reflector with a chemically-bonded lightweight non­breakable ALGLAS® finish on both the inside and outside sur­faces providing corrosion resistance, durability, and ease of
cleaning; and a _______ specify acrylic, polycarbonate resin, or
heat/impact-resistant glass prismatic refractor with gasketing
between the reflector and the refractor. (For lamps of 250 use
glass refractor only.)

The optical assembly shall have a _______ specify non-wicking
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.