Cut Sheet

Volume 1—Residential and Light Commercial CA08100002E—August 2015 www.eaton.com V1-T1-69
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1.2
Loadcenters and Circuit Breakers
Type BR Loadcenters and Circuit Breakers
Approximate Dimensions in Inches (mm)
Knockouts for Box Sizes 3, 4, 5, 6, 7, 9, 2R, 3R, 4R, 5R, 6R,
7R, 8R, 9R
Residential NEMA Type 1 Indoor and NEMA Type 3R Outdoor Enclosures
Code Diameter
A 0.50 (12.7) — — —
B 0.50 (12.7) 0.75 (19.1) — —
C 0.50 (12.7) 0.75 (19.1) 1.00 (25.4) —
D 0.50 (12.7) 0.75 (19.1) 1.00 (25.4) 1.25 (31.8)
E 0.75 (19.1) 1.00 (25.4) 1.25 (31.8) —
F 0.75 (19.1) 1.00 (25.4) 1.25 (31.8) 1.50 (38.1)
G 1.00 (25.4) 1.25 (31.8) 1.50 (38.1) —
H 1.00 (25.4) 1.25 (31.8) 1.50 (38.1) 2.00 (50.8)
I 1.25 (31.8) 1.50 (38.1) 2.00 (50.8) —
Box 2, 2R
R
1.00–1.25 KO
(25.4–31.8) KO
Mounting
Hole for
5/16 (7.9)
Screw
.50–.75
(12.7–19.1)
2.38
(60.3)
.31 (7.9)
.50–.75–1.00
(12.7–19.1–25.4)
.50–1.00–1.25
(12.7–25.4–31.8)
6.38
(161.9)
A
A
A
A
C
E
A
A
C
E
F
A
A
F
Box 3
A
A
A A
F
Hub
A
A
A A
A
A A
B
B
B
D
G
G G
Hub
A
A
A
A
A
A A A
A
A A
B
BB
B
B
B
D
G
A
A
A A
A
A A
B
B
B
D
D D
G
G
G
D
G
G
Box 3R Box 4
Box 4R
Box 5 Box 5R Box 6
A
A
A
A
A
A
D D D
D
F
F
A
A
D D D
F
Hub
A
A
B
A
B
B
C
C
F
F
F
F
A
B
F
F
H
A
B
A
B
H
Box 6R
F
B B
B
H
Hub
D D
Box 7 Box 7R
A
A
AA
A
AAA
AAA AAA
B B B
A
B B
B
B
B
B
C C
C
C
C
B
C
G
G
G
G
G G
F
AAA AAA
A
B B
B
C
C
G
G G
F
Hub
A
A
B
C
C
Hub
I
A
A
B
C
C
I I
A A
A
A
A A
B
B
B
B
B
B
B
C
C
C
G
GG
G
G
G
G
G
A
A
B
B
C
G
G
G
G
Hub
Box 8R Box 9 Box 9R