Square D Digest 179

QO/Homeline Load Center Dimensions

Rainproof, Dimensions, Knockouts and Bolt-on Hubs Class 1130, 1170 / Refer to Catalog 1100CT0501

1 LOAD CENTERS

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Enclosure Dimensions and Knockout Information Table 1.75: Enclosure Dimensions Dimensions BoxNo. W H

D

in.

mm 166 124 226 375 375 375 375 375 375 116 176 192 244 176 375 226 217 226

in.

mm

in.

mm

1NM 1R [1]

6.52 4.88 8.88

8.79 9.38

223 238 321 481 560 661 758 858 965 165 335 590 666 411

3.90 4.00 4.27 4.52 4.52 4.52 4.52 4.52 4.52 3.88 4.12 4.75 5.50 4.12 4.52 4.27 4.16 4.27

99

102 108 115 115 115 115 115 115 105 121 140 105 115 108 106 108 99

2R 3R 4R 5R 6R 7R 8R 9R

12.65 18.92 22.06 26.04 29.86 33.78 37.98 6.50 13.18 23.24 26.24 16.18 39.37 14.80 24.75 12.65

14.75 14.75 14.75 14.75 14.75 14.75 4.56 6.92 7.56 9.62 6.92 14.75 8.88 8.55 8.88

10R 11R 12R 13R 14R 15R 16R 17R

1000 376 629 321

Table 1.76: Knockout Information

Knockouts

Symbol

A

B

C

D

E

F

G

H

Conduit Size

1/2 in.

3/4 in.

1 in.

1-1/4 in.

1-1/2 in.

2 in.

2-1/2 in.

3 in.

Bolt-On Hubs Square D equipment with “R’’ or “RB’’ suffix, designated NEMA 3R rainproof construction, utilizes bolt-on hubs listed below. “RB’’ devices will accept 3/4 in. through 2 1/2 in. bolt-on hubs without the use of reducers. Off-center conduit thread openings and elongated mounting holes provide quick and easy adjustment to eliminate costly conduit offsets and bends. Catalog suffix “R’’ devices require 3 in. through 4 in. field cut opening. Hubs are suitable for use with conduit having ANSI standard taper pipe thread. Table 1.77: Bolt-On Hubs UL Listed for Rainproof Devices Conduit Size 3/4 in. 1 in. 1-1/4 in. 1-1/2 in. 2 in. 2-1/2 in. Hub Cat. No. B075 B100 B125 B150 B200 B250 NOTE: Closing cap (Cat. No. BCAP) is provided factory-installed on each device having “RB’’ suffix. Table 1.78: Bolt-On Hubs UL Listed for Mounting in Field-Cut Opening Conduit Size 3 in. 4 in. Hub Cat. No. B300 B400 Designed for mounting in field cut opening. Includes gasket and four mounting bolts and nuts.

HOME250SPA and QO260NATR top endwall has no hub opening.

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