11/18/2017
Type 1 Mild Steel Junction Box (CHKO Series) - Hammond Mfg.
Quality Products. Service Excellence.
Type 1 Mild Steel Junction Box
CHKO Series
Hinge Door with Quarter Turn and w/ Knockouts
Application
Designed for general purpose indoor commercial use as a junction, pull or switch box.
Hinged cover with latch provides easy access during installation and maintenance.
Standards
UL-50 Type 1
CSA Type 1
Complies with
NEMA Type 1
IEC 60529, IP20
Construction
Formed and spot welded from 16 or 14 gauge steel depending on size.
Formed steel covers close by use of slotted quarter turn latch.
Full swing door using butt hinges.
Easily removed knockouts on all 4 sides (see drawings for sizes and locations).
Through holes in back for wall mounting.
Grounding location embossed in body.
Finish
Enclosure and cover are finished in ANSI 61 gray powder coating.
Accessories
Type 1 Lock Kit
https://www.hammfg.com/electrical/products/commercial/chko
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11/18/2017
Type 1 Mild Steel Junction Box (CHKO Series) - Hammond Mfg.
Overall Dimensions
Part No.
CHKO663
CHKO644
CHKO664
CHKO864
CHKO884
CHKO1084
CHKO10104
CHKO1284
CHKO12104
CHKO12124
CHKO16124
CHKO18124
CHKO666
CHKO886
CHKO1086
CHKO10106
CHKO12106
CHKO12126
CHKO16126
CHKO16166
CHKO18126
CHKO18186
CHKO24186
CHKO24246
CHKO30246
CHKO36246
CHKO36248
A
6.00
6.00
6.00
8.00
8.00
10.00
10.00
12.00
12.00
12.00
16.00
18.00
6.00
8.00
10.00
10.00
12.00
12.00
16.00
16.00
18.00
18.00
24.00
24.00
30.00
36.00
36.00
B
6.00
4.00
6.00
6.00
8.00
8.00
10.00
8.00
10.00
12.00
12.00
12.00
6.00
8.00
8.00
10.00
10.00
12.00
12.00
16.00
12.00
18.00
18.00
24.00
24.00
24.00
24.00
C
3.50
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
8.00
Mtg. Centers
D
3.00
3.00
3.00
5.00
5.00
7.00
7.00
9.00
9.00
9.00
13.00
15.00
3.00
5.00
7.00
7.00
9.00
9.00
13.00
13.00
15.00
15.00
21.00
21.00
27.00
33.00
33.00
E
5.00
3.00
5.00
5.00
7.00
7.00
9.00
7.00
9.00
F
G
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
Knockout Pattern
Sides
B-C-D
B-C-D
B-C-D
F-G-H-I
F-G-H-I
F-G-H-I
F-G-H-I
C-D-E-F-G
C-D-E-F-G
C-D-E-F-G
B-C-D-E-F-G-H
A-B-C-D-E-F-G-H-I
B-C-D
F-G-H-I
F-G-H-I
F-G-H-I
C-D-E-F-G
C-D-E-F-G
B-C-D-E-F-G-H
B-C-D-E-F-G-H
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
Knockout Pattern
Top & Bottom
B-C-D
A-B
B-C-D
B-C-D
F-G-H-I
F-G-H-I
C-D-E-F-G
F-G-H-I
C-D-E-F-G
C-D-E-F-G
C-D-E-F-G
C-D-E-F-G
B-C-D
F-G-H-I
F-G-H-I
C-D-E-F-G
C-D-E-F-G
C-D-E-F-G
C-D-E-F-G
B-C-D-E-F-G-H
C-D-E-F-G
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
A-B-C-D-E-F-G-H-I
11.00 0.50 0.28
11.00 0.50 0.28
11.00 0.50 0.28
5.00
7.00
7.00
9.00
9.00
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
0.50 0.28
11.00 0.50 0.28
11.00 0.50 0.28
15.00 0.50 0.28
11.00 0.50 0.28
17.00 0.50 0.28
17.00 0.50 0.28
22.50 0.75 0.44
22.50 0.75 0.44
22.50 0.75 0.44
22.50 0.75 0.44
Data subject to change without notice
© 2017. Hammond Manufacturing Ltd. All rights reserved.
https://www.hammfg.com/electrical/products/commercial/chko
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11/18/2017
Type 1 Mild Steel Junction Box (CHKO Series) - Hammond Mfg.
https://www.hammfg.com/electrical/products/commercial/chko
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