Cooper Lighting Fail-Safe SCH24 Specification Sheet Download Page 1

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SPECIFICATION FEATURES

06/25/2007 5:03:18 PM

Consult your representative for additional options and finishes.

Specifications and Dimensions subject to change without notice.

ADC041659

LAMP CONFIGURATIONS

DOOR FRAME

MOUNTING DIMENSIONS

DESCRIPTION

The Fail-Safe SCH24 Series is designed for use in horizontal or non-laminar 
air flow clean rooms. The enclosed and gasketed housing and door protect 
against infiltration of airborne bacteria. Fixtures tested to 100 PSI hosedown. 
Higher ratings available (consult factory). The mitered edges on the door 
frame and the hole-free design of the housing prevent air exchange 
between the fixture and plenum, allowing relamping without contamination 
of the clean areas. These luminaires are manufactured in accordance with 
U.S.D.A., F.D.A., N.S.F. and Federal Standard 209E.

Application

The SCH24 Series is suitable for 
use in I.E.S. Class 10 (M2.5), 100 (M 
3.5), 1,000 (M 4.5), 10,000 (M 5.5) 
and 100,000 (M 6.5) clean room 
environments. Applications include 
cleanrooms, technical and bio-
medical labs, food processing/
testing centers and pharmaceutical 
labs.

A ... Lens

Lens is clear extruded with prisms 
positioned inside fixture and 
smooth surface on the outside for 
easy cleaning.

B ... Fasteners

Flush mounted, stainless steel 
machine screws secure through 
captive cage nuts in housing and 
are evenly spaced to compress 
gasketing on all sides.

C ... Housing

Nominal 5" deep recessed one-
piece housing made of 20 ga. CRS. 
Die-formed and seam welded to 
create a sealed chamber.

D ... Lamps

(By Others)

E ... Lens Retention

Unique, Particulock(TM) lens 
retention system utilizes con-
tinuous, 18 ga. media clamp-
downs. Lens is hermetically sealed 
with silicone RTV to door frame for 
an airtight seal against the 
environment.

F ... Hinge

Reversible drop-link hinging 
system for easy maintenance.

G ... Door

Optional) Door can be extruded 
aluminum, fully gasketed, outside 
flanged door with mitered edges 
eliminates seams which could 
entrap microscopic contaminants. 
Not standard, must specify. One-
piece, die-formed stainless steel 
door optional.

H ... Ballast

Standard Class P, CBM/ETL ballast.

I ... Gasket

MicroSeal(TM) gasketing system 
features silicone RTV sealant 
surrounding the perimeter of lens 
to seal lens to door frame and 
extruded silicone rubber gasketing 
around perimeter of door to seal 
door to ceiling. White, closed cell 
Flexiseal(TM) seals fixture to 
ceiling system after installation.

J ... Access

A gasketed access plate on top of 
the housing with two flattened, 
7/8" diameter knockouts allows 
connection of vapor tight conduit 
fitting.

Labels

U.L. listed, C.S.A. certified, 
standard wet label.

SCH24

34W - 160W

Fluorescent

2' X 2'
2' X 4'

SPECIFICATION GRADE

FLUORESCENT GRID

2" GRID

C

D

I

B

F

J

H

A

E

G

5"

[127mm]

23 3/16" [589mm]

23 3/8" [594mm]

24” [610mm]

E N E R G Y   D A TA  

Input Watts:
STD Ballasts & STD Lamps 

(2) 20W T12 Fluorescents: 53W

(3) 20W T12 Fluorescents: 85W

(4) 20W T12 Fluorescents: 106W

(2) 40W Biaxial Fluorescents: 82W

(3) 40W Biaxial Fluorescents: 127W
ES Ballasts & STD Lamps 

(2) 17W T8 Fluorescents: 45W

(3) 17W T8 Fluorescents: 68W

(4) 17W T8 Fluorescents: 90W

(2) 31W U1/U6 Fluorescents: 71W

(3) 31W U1 Fluorescents: 108W

(2) 32W T8 Fluorescents: 71W

(3) 32W T8 Fluorescents: 108W

(4) 32W T8 Fluorescents: 142W

(2) 40W T12 Fluorescents: 86W

(3) 40W T12 Fluorescents: 136W

(4) 40W T12 Fluorescents: 172W

(2) 40W U6 Fluorescents: 86W

ES Ballasts & ES Lamps
(2) 40W T12 Fluorescents: 76W

(3) 40W T12 Fluorescents: 120W

(4) 40W T12 Fluorescents: 152W

(2) 40W U6 Fluorescents: 76W
Electronic Ballast Data:

Consult Cooper Lighting Representative

Extruded aluminum mitered door frame with

extruded silicone rubber perimeter gasketing

One piece stainless steel door frame with

extruded closed cell silicone perimeter gasketing

3/4"

[19mm]

Max.

2"

[51mm]

1 3/4"

[44mm]

Max.

3/4"

[19mm]

Max.

2"

[51mm]

1 3/4"

[44mm]

Max.

1 1/2"

[38mm]

10"

[254mm]

10"

[254mm]

23 3/16"

[589mm]

(2) 7/8" [22mm] Dia.KO

Gasketed Access Plate

48 "

[1219mm]

1 7/16"

[37mm]

23 316"

[589mm]

1 1/2"

[38mm]

(2) 7/8" [22mm] Dia. KO

Gasketed Access Plate

24"

[610mm]

5 7/16"

[138mm]

FAIL-SAFE

®

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