19
Application
Table P2-2 – Panel Unit Space To Box Height Requirements
P2 Panels With Standard Line Lugs. Unit Space (starting with 9" and adding 6" increments) “A” Dimension
“B”
Main Lugs
Main Breakers
Dimen-
sion
125A
250A
400A
600A
125A
125A
125A
225A
250A
250A
400A
400A
600A 600A
Box
Horiz.
Horiz. Vert.
Horiz.
Horiz.
Vert.
JD CJD
LD
CLD
Height
BL,BQD6,ED CED
ED
QJ
FD
CFD
26
9
—
—
—
9
—
—
—
—
—
—
—
—
—
32
15
9
—
—
15
9
9
9
—
—
—
—
—
-—
38
21
15
9
9
21
15
15
15
9
—
—
—
—
—
44 27 21 15 15 27
21 21 21 15 — — — — —
50
33
27
21
21
33
27
27
27
21
9
9
—
—
—
56 39 33 27 27 39
33 33 33 27 15 15 —
9
—
62 45 39 33 33 45
39 39 39 33 21 21
9
15 9
68*
51* 45 39 39 51*
45 45 45 39 27 27 15 21 15
74* 57* 51* 45 45 57*
51* 51* 51* 45 33 33 21 27 21
Table P2-4 – Main Lug Connectors (Fig. P2-2)
Panel Amps
Standard Connectors
C
D
125
(1) #14 - 2/0
6.62
8.19
250
(1) #6 AWG - 350 Kcmil
12.34
11.22
400
(1) #4 AWG - 600 Kcmil
14.00
13.09
or (2) #6 - 250 Kcmil
600
(2) #4 AWG - 500 Kcmil
14.00
11.00
Table P2-3 – Main Breaker (Fig. P2-1)
Panel Amps
Breaker Frames
C
D
100 BL
5.75
8.00
BQD
5.125
8.00
125 ED
4.00
8.00
225 QJ
5.00
7.00
250 FD
5.00
7.00
400 JD
14.00
25.00
600 LD
15.50
23.00
Fig. P2-3
Fig. P2-2
Box depth = 5.75 in. (146 mm)
Box width – 20 in. (508 mm)
for 100-600A
Fig. P2-1
Box depth = 5.75 in. (146 mm)
Box width – 20 in. (508 mm)
for 100-600A
Table P2-5 – Branch Breaker Side
Gutters Inches (mm) (Fig. P2-3)
Reference Panel
Letter
Width 20” (508)
A
5.750
(146)
B
5.125
(130)
C
4.000
(102)
D
5.000
(127)
Single branch mounting construction.
Panel Width
20 in. (508 mm)
QJH2, QJ2-H, HQJ2H
(Single Mounted)
A
A
B
B
C
C
D
D
BL, BLH, HBL BL, BLH, HBL
BLF, BLFH
BLF, BLFH
BQD, BQD6
BQD, BQD6
ED, ED4, ED6 ED, ED4, ED6
HED4
HED4
*Contact local Siemens representative before ordering.