JBA/JBB JUNCTION
BOX
FOR DIRECT FIXTURE MOUNTING
TYPE
JOB NAME
PART NUMBER
Model
Conduit Entries
Fixture Mounting
Conduit Entries
Accessories
DESCRIPTION:
Junction Boxes are available in cast bronze or aluminum and are
used where splicing is required for single or multiple fixtures. Drilled
and tapped to specified requirements.
SPECIFICATIONS:
MATERIAL: Heavy wall cast aluminum or bronze.
DIMENSIONS:Outside: 4 3/4" (121) diameter x 3" (76) deep.
Inside: 3 1/2" (89) diameter x 2" (51) deep.
FIXTURE MOUNTING: One opening at “G” location in lid accepting a thread knuckle.
CONDUIT ENTRIES: Bottom and side entries available; E, F, & H
locations are on the bottom of the Junction Box; A, B, C & D locations
are on the sides of the Junction Box. If three (3) bottom entries need
to be drilled, the configuration changes to the alternate shown in
figure B.
Figure A
4 3/4” O.D.
A
VOLUME: 25 cubic inches.
E
E
FINISH NOTE: Aluminum body coated with Permabar; Covers are
natural aluminum.
LISTING: U.L.
*Note: Hydrel recommends sealing the conduit to maintain dry,
clean electrical components.
Figure B
C
F
F
D
COVER, G
H in this location
if single bottom
hole is required
B
H
Bottom drilling if 3
holes are required
3”
4 3/4” O.D.
NOTE: HYDREL RESERVES THE RIGHT TO MODIFY SPECIFICATION
WITHOUT NOTICE. Any dimension on this sheet is to be assumed as a
reference dimension: "Used for information purposes only. It does not
APPROVALS
govern manufacturing or inspection requirements." (ANSI Y14.5-1973)
©2008 Acuity Brands Lighting, Inc.
8/20/08
JBA-JBB_Rev2
20660 Nordhoff St., Suite B
Chatsworth, CA 91311
Phone: 866.533.9901
Fax: 866.533.5291
www.hydrel.com
JBA/JBB ORDERING INFORMATION
60 Hz Application
Choose the boldface catalog nomenclature that best suits your needs.
PART NO.
EXAMPLE:
JBA
Model
† JBA Junction Box,
Aluminum
† JBB Junction Box,
Bronze
34E 34F
12G
Conduit Entries-Side1,3
† 12A
† 34A
† 16A
† 20A
† 12B
† 34B
34B
† 16B
† 20B
† 12C
† 34C
† 16C
20C
† 20C
† 12D
† 34D
† 16D
† 20D
1/2” NPT
3/4”NPT
PG16
M20
1/2”NPT
3/4”NPT
PG16
M20
1/2” NPT
3/4”NPT
PG16
M20
1/2” NPT
3/4”NPT
PG16
M20
Fixture Mounting1,3
† 14G Accepts 1/4”
NPT threaded knuckle
† 12G Accepts 1/2”
NPT threaded knuckle
† 34G Accepts 3/4”
NPT threaded knuckle
† 16G Accepts PG16
NPT threaded knuckle
† 20G Accepts M20
NPT threaded knuckle
WNS
Conduit Entries-Bottom3
†
†
†
†
†
12H 2
34H 2
1H 2
16H 2
20H 2
1/2” NPT
3/4”NPT
1” NPT
PG16
M20
Accessories
† PC2112 Potting
Compound
† WNS Wire Nuts Silicone
Conduit Entries-Bottom3
12E
† 12E
† 34E
† 16E
† 20E
† 12F
† 34F
† 16F
† 20F
1/2” NPT
3/4”NPT
PG16
M20
1/2” NPT
3/4”NPT
PG16
M20
Note:
1
Maximum of one size per location.
2
If 1H is chosen then no drilling is available at E and F locations.
3
PG16 and M20 drillings are for international applications
©2008 Acuity Brands Lighting, Inc.
8/20/08
JBA-JBB_Rev2
20660 Nordhoff St., Suite B
Chatsworth, CA 91311
Phone: 866.533.9901
Fax: 866.533.5291
www.hydrel.com