Cut Sheet

Aluminum Conduit Outlet Boxes Explosion-Proof,
Dust-Ignition-Proof
Dimensions and
Cubic Inches (CI)
EXUN & EXUNL
HUB DIMENSIONS (IN.)
SIZE A B C D E F G H J K CI
1
2"3
31
32"3
1
8"2
21
32"2
1
16"43
3
8"4
1
4"1
1
4"1
9
16"
17
64" 20.3
3
4"3
31
32"3
1
8"2
21
32"2
1
16"43
3
8"4
1
4"1
1
4"1
9
16"
17
64" 20.3
1" 3
31
32"3
5
16"
3
4"2
1
4"43
9
16"4
1
4"1
1
16"1
9
16"
17
64" 20.0
GAC, GAE, GAL, GALB, GAT, GAX
COVER HUB DIMENSIONS (IN.)
OPENING SIZE A B C D E F G H J K L CI
3
11
16"
1
2"4"2
1
4"2
15
16"1
3
8"
11
16"
11
16"5
3
16"5
9
16"4
3
16"3
5
16"
9
16" 18.8
3
11
16"
3
4"4"2
1
4"2
15
16"1
3
8"
11
16"
11
16"5
3
16"5
9
16"4
3
16"3
5
16"
9
16" 18.8
3
11
16"1" 4" 2
1
4"2
15
16"1
5
8"
13
16"
27
32"5
1
2"5
9
16"4
3
16"3
5
16"
9
16" 18.8
3
29
32"1
1
4"4
5
16"3"3
11
16"2
1
16"1
1
32"
7
8"5
11
16"– 4
9
16"3
15
16"
5
8" 28.0
5
3
16"1
1
2"5
3
4"4
1
4"5
1
16"2
7
8"1
7
16"
7
8"6
5
8"–6
7
16"5
15
32"
13
16" 69.3
5
3
16"2"5
3
4"4
1
4"5
1
16"2
7
8"1
7
16"
7
8"6
5
8"–6
7
16"5
15
32"
13
16" 69.3
Dimensions of all styles
when GAJ cover is used
A-70
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
Technical Services
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www.tnb.com