
FAIL-SAFE
®
CONFINEMENT
HMS24 
HMS24CR
250W-400W
High Pressure Sodium 
Metal Halide
165W
QL Induction
MEDIUM SECURITY 
SURFACE LUMINAIRE
• Lens choice of prismatic 
tempered glass on fixture 
side, clear polycarbonate 
or clear tempered glass on 
environmental side
• Stainless steel tamperresistant TORX®screws 
with center pin reject are 
standard. Allen-head 
screws with center pin 
reject are optional
• Die-formed 14 ga., 16 ga. 
or 20 ga. prime CRS with 
continuous welded and 
ground seams. Standard 
white high reflectance 
polyester powder coat 
finish
• QL induction lamp is 
supplied with the fixture
• Lens secured by thru-studs 
and vertically adjustable 
internal CRS hold-downs 
• Internal security hinge
• Door frame consists of 
die-formed 14 ga., 16 ga. or 
20 ga. prime CRS with 
overlap corners (gauge to 
match housing)
DESCRIPTION
DIMENSIONS
The Fail-Safe HMS Series 
combines maximum security 
construction features with 
energy saving technology. This 
surface mounted H.I.D. 
luminaire utilizes a one piece 
heavy gauge housing, security 
lensing and tamper resistant 
fasteners to maximize impact 
resistance and prevent 
unauthorized fixture 
penetration. For ceiling mount. 
U.L. listed and C.S.A. certified 
for wet locations.
ORDERING INFORMATION
SAMPLE NUMBER: HMS-D24-400S-277-93/97-QRS-SF3
Product Family 
Surface Luminaire 
HMS-X24=14 ga.
(Maximum 
Security)
HMS-D24=16 ga.
(Medium 
Security)
HMS24CR=20 ga. SS
Corrosion 
Resistant
Lamp Type 
High Pressure Sodium 
250S=250W HPS 
400S=400W HPS
Metal Halide 
250M=250W MH 
400M=400W MH
QL Induction
2
165Q=165W QL
Voltage 
120=120V 
208=208V 
240=240V 
277=277V 
DT=Dual-Tap 120/277V 
MT=Multi-tap
120/208/240/277V
MOUNTING
A
HMS24 24" 24" 13" 
1
ABC
(610mm) (610mm) (330mm)
Lens Type 
Fixture Side       / 
26=Injected
Molded 
Polycarbonate 
Lens
93=.156 Prismatic
Tempered Glass
C
A
A
A
B
B
B
B
B
Options
Environmental Side 
85=.187 Clear
Polycarbonate
86=.250 Clear
Polycarbonate
87=.375 Clear
Polycarbonate
94=.187 Clear
Tempered Glass
96=.250 Clear
Tempered Glass
97=.375 Clear
Tempered Glass
3
ALP=Aluminum Door
(polyester powder coat
4
finish)
DF=Double Fuse 
SF=Single Fuse
Socket Options 
QS=Quartz Socket (DC
bayonet base)
QRS=Quartz Restrike System
(DC bayonet base 
socket; 
lamp by others.)
Stainless Steel Housing 
SHN=Natural Brushed Finish  
SHP=Polyester Powder Coat
Stainless Steel Door 
SSN=Natural Brushed Finish  
SSP=Polyester Powder Coat
Fasteners 
SF1=TORX
SF3=Allen-Head
4
Finish
4
Finish
®
-Head
(center pin reject)
(center pin reject)
4
4
• Standard Class P, CBM/ETL 
ballast for HMS24 and 
Copper wound HPF is 
standard for HMSCR
• Non-toxic light mask
• U.L. listed, C.S.A. certified, 
standard wet label
1464
COOPER LIGHTING
Accessories (Order Separately) 
9306=Allen-Head Wrench  
VRSD=TORX®-Head Vandal
Resistant Screwdriver
Notes: For additional options, consult your Cooper Lighting Representative. Specifications and Dimensions subject to change without notice.
1
Available with 240V if needed. 2Door and Housing to be Natural Brushed finish. 3Do not specify with 26 lens. 4HMS24 fixtures only. 5HMSCR
fixtures only.
4