Sections

Intended Use
Use in low mounting height areas that
require optimum horizontal illumination
with brightness control in hard ceiling
and T-bar applications. Ideal for office,
retail and commercial areas.
Features
Housing – 20-gauge steel housing with highreflectance,
white polyester powder paint.
Ballast – Copper wound and 100% factory
tested. Prewired 7', 16-gauge leads and 90°
connector, no flex. High Power Factor, constant-wattage
autotransformer.
Optics – Anodized aluminum top reflector.
Prismatic tempered glass lens. Horizontal
units contain heat-treated glass refractor
mounted below lamp to control brightness.
G1: Painted floating aluminum door with
black reveal. Door attaches to housing as-
sembly using T-hinges and two opposing
cam latches for positive retention. G2: Full
Door Assembly. G3: Rough Service Door
Assembly. Coated lamps provide optimum
performance.
Installation – 2' nominal aperture. Power
door contains all electrical components
(Thermally activated insulation detector
included). G1 and G2 power door swings
down for easy access or can be removed
for servicing. G3 uses four Phillips flathead
retaining screws for positive retention.
Overlapping flange available (GF).
Socket – Mogul-base porcelain socket with
copper alloy, nickel-plated screw shell and
center contact. Position-oriented socket
on metal halide horizontal units.
Listings – UL Listed. CSA Certified. UL
listed for recessed mounting and damp
locations.
Ordering Information Example: G1 175M RW T73 120
Series
Horizontal lamp1 G1
G2
G3
GF1
GF2
GF3
Vertical lamp
G1V
G2V
G3V
GF1V
GF2V
GF3V
Metal Halide
175M3 200M4 250M5 320M4 350M4 400M5 Lamp Data
Wattage/lamp 2
High Pressure
Sodium
150S
250S
Wattage/ Lithonia Lighting Lamp Nomenclature
lamp type Horizontal lamp Vertical lamp
150S LU150C LU150C
250S LU250C LU250C
175M MS175C/H MS175C/BU
200M MS200C/U PSL MS200C/BU
250M MS250C/H MS250C/BU
250M MS250C/BUH PSL MS250C/BU PSL
320M MS320R/C/U PSL MS320R/C/U PSL
350M MS350R/C/U PSL 3K MH350C/BUD PSL
400M MS400C/H MS400C/BU
400M MH400R/C HOR PSL VE MS400C/BU PSL
2’ x 2’ Recessed Squares
Door frame
RW Regressed white
aluminum
RM Regressed matte black
aluminum
FW Flush white aluminum
FM Flush matte black
aluminum
FS Flush white steel6 G1
Door Frames
G2 G3
RW Standard Option Option
RM Option Option Option
FW Option Option Standard
FM Option Option Option
FS N/A Standard N/A
www.lithonia.com
keyword: G
Shielding
T73 Tempered prismatic
glass lens
84Y Holophane #8224Y lens
A12 Prismatic acrylic lens
T8A Triumph acrylic TR800A
lens7 T8P Triumph polycarbonate
TR800P lens7 General Area Lighting
G
Lensed Refractor
Voltage
120
208
240
277
347
TB8 Indoor HID / PSG8
Options/
Accessories
See page 405
NOTES:
1 Position-oriented socket standard on metal halide luminaires.
2 Mogul-base lamps required. Coated lamps recommended.
3 If ordered with SCWA and LLRPSL option, available only
with vertically lamped luminaires.
4 Available only when ordered with SCWA and LLRPSL
option.
5 Order with SCWA and LLRPSL option if pulse start lamps
are required.
6 Available with G2 and G2V luminaires only.
7 Available with G2 luminaire only.
8 Multi-tap ballast. US: 120, 208, 240, 277V. Canada: 120,277,
347V.
STANDARD PACKAGING
Fixtures ship complete in unit cartons only. Example:
(Qty 13) G1 175M RW T73 120 (13 cartons of 1 fixture)
Accessories ship separately.
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