Cut Sheet

Aluminum Conduit Outlet Boxes
Explosion-Proof, Dust-Ignition-Proof
COVER HUB
OPENING SIZE A B C D E F G H J CI
4”
1
⁄2"4
5
⁄8 2
3
⁄8 3
3
⁄8 2
3
⁄16 1
3
⁄16
1
⁄2
3
⁄4 42
5
⁄8 31
4”
3
⁄4"4
5
⁄8 2
3
⁄8 3
3
⁄8 2
3
⁄16 1
3
⁄16
1
⁄2
3
⁄4 42
5
⁄8 31
4” 1" 4
5
⁄8 2
3
⁄8 3
3
⁄8 2
3
⁄16 1
3
⁄16
1
⁄2
3
⁄4 42
5
⁄8 31
GASS Internal Hubs with Installed Green
Ground Screw, Cover and Plugs
CAT. HUB UNIT STD. WT. LBS.
NO. SIZE QTY. PKG. PER 100
GASS-1
1
⁄2" 1 5 282
GASS-2
3
⁄4" 1 5 278
GASS-3 1" 1 5 274
Application
• Junction for branch conduits in hazardous
locations
• Accessible wiring chamber provides
a convenient location to maintain or change
a system, pull conductors and make splices
Features
• Copper-free* aluminum alloy provides
increased corrosion resistance
• Extra wide 3
3
⁄4" opening provides more hand
space for easy access to the wiring chamber
• Precision cast and machined surfaces permit
safer wire pulling
• Large capacity 31 cu. in. chamber provides
more wiring space
• Precision NPT threaded hubs enable trouble-
free field installation for rigid or IMC conduit
• Sand cast construction and industrial design
combine to produce a rugged protective
enclosure for devices on industrial and OEM
applications
• Clear UL, CSA and cubic content markings
speed approval by inspectors
• Hub spacing enables use of EXFU
and EXMU unions
Standard Materials
• Box —Sand Cast
aluminum alloy A356. 2-T6
• Cover — Die Cast aluminum
alloy A360 with less than .004
copper content (copper-free)
Standard Finish
• Aluminum lacquer finish
Listings/Compliances
• UL Listed
• CSA Certified
• NEC
• CI.I, Div. 1 & 2, Groups C, D
CI.II, Div. 1, Groups E, F, G
CI.III, Div. 1 & 2
• NEMA 3, 4, 7 CD, 9 EFG
• Explosion-Proof
• Dust-Ignition-Proof
• Raintight
• Wet Locations
Sample Specifications
• Enclosure for hazardous locations. The box
shall be cast copper-free* aluminum alloy
A356.2-T6 . Suitable for use in hazardous
locations: Suitable for use in Class I, Groups
C, D; Class II, Groups E, F, G; and Class III
areas. Enclosures shall be finished with
aluminum lacquer. Outlet boxes shall be
Thomas & Betts Catalog No. ______
*Less than .004% copper content.
Copper-free
aluminum
Clean cover
edges
Precision
machined threads
Internal
ground boss
and screw
Heavy wall
construction
GASS
A-74
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
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