
P1 Panelboards • Quick reference for selection and application
12
20 in.
[ 508 ]
5.75 in.
[ 146 ]
³⁄₄ in.
[19 ]
³⁄₄ in.
[19 ]
Dimensions
Type P1 Panelboards
Type 1 Box
Box is symmetrical
1
Dimensions are interior of the box. Add 5/8" to width for absolute dimension. Add
1/8" to height for absolute dimension.
Dimensions shown in inches and millimeters [ ].
50 in.
26 in.,
[1270]
[
660 ]
74 in.
[
1880
]
,
,
Type 1 Box
Box is symmetrical
Type 3R and 3R/12 Box
50 in.
26 in.,
[1270]
[
660 ]
74 in.
[
1880
]
,
,
1
Dimensions are interior of the box. Add 5/8" to width for absolute dimension. Add
1/8" to height for absolute dimension.
Dimensions shown in inches and millimeters [ ].
50 in.
26 in.,
[1270]
[
660 ]
74 in.
[
1880
]
,
,
Type 1 Box
Box is symmetrical
Type 3R and 3R/12 Box
50 in.
26 in.,
[1270]
[
660 ]
74 in.
[
1880
]
,
,
1
Dimensions are interior of the box. Add 5/8” to width for
absolute dimension. Add 1/8” to height for absolute dimension.
Dimensions shown in inches and millimeters [ ].
Type 3R and 3R/12 Box
Flush Mounting
(UL approved construction. 16 Gage Steel or equivalent alternate Construction.
14 or 12 Gage is available as an optional special order.)
(UL approved construction. 16 Gage Steel Can with 14 Gage front
or similar approved construction.)
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