49-56.qxp
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Page 49
Myers™ Hubs
Applications:
Hub Basic Scru-Tite® – NEMA 2, 3, 3R, 4, 4X and 12
• Myers™ Scru-tite® and Ground hub are used in the termination of
electrical circuits through wall of the enclosure
Zinc
UL File No. E-27258
• Resistant to a variety of chemicals, including acetic, citric and salt
water.
• The O-ring is a special "Viton (75)" and has excellent chemical
resistance.
• Hub is provided with a stainless steel ground nut.
Features:
• Vibration proof
• Grounding screw for added safety
• Captive o-ring gasket
• No welding
• Posi-Lok insulated throat (insuliner)
• Fit standard knockouts
• Easy installation
Cat. #
Size
Unit
Qty.
Wt. Lbs.
Per 100
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
3
/8"
/2"
3
/4"
1"
11/4"
11/2"
2"
21/2"
3"
31/2"
4"
5"
6"
25
25
25
25
10
10
10
5
2
2
2
1
1
12
20
32
40
60
70
90
200
250
300
350
600
800
03†
1†
2†
3†
4†
5†
6†
7†
8
9
10
11*
12*
1
Conduit Hubs
• Ideal for pharmaceutical, chemical and food processing,
pulp/paper and nuclear industries.
†Optional Nickel-Chrome Plate Finish. Add suffix -CP. See price list.
*Not supplied with insulator.
• Controlled thread lengths
• NPSL on male thread
Hub Basic Scru-Tite® – NEMA 2, 3, 3R, 4, 4X and 12
• No sharp edges (along parting line)
• Male thread (NPT)
Aluminum
UL File No. E-27258
Certifications and Compliances:
• NEC/CEC:
Class I, Division 2
Class II, Division 1 & 2
Cat. #
Size
Unit
Qty.
Wt. Lbs.
Per 100
Class III, Division 1 & 2
STA
STA
STA
STA
STA
STA
STA
STA
STA
STA
STA
STA
/ 2"
/ 4"
1"
11/ 4"
11/ 2"
2"
21/ 2"
3"
31/ 2"
4"
5"
6"
25
25
25
10
10
10
5
2
2
2
1
1
8
16
16
30
30
50
80
100
150
150
300
300
• UL Listed – UL Standard 514B
• CSA Certified – Certified by UL to CSA standard C22.2 No. 18
• NEMA Type 2, 3, 3R, 4, 4X, 12 (std hub)
• NEMA Type 2, 3, 3R, 4, 4X, 12 (ground hub)
Standard Materials:
• Nut: Zamek-2, Zamek-3, Aluminum (Al 360), Stainless (316)
• Body: Zamek-2, Zamek-3, Aluminum (Al 360), Stainless (316)
• Insuliner: Lexan
1
2
3
4
5
6
7
8
9
10
11*
12*
1
3
*Not supplied with insulator.
• O-Ring: Gasket Vi Ton
• Ground Screw: Steel
Stainless Steel Ground Hub – NEMA 2, 3, 3R, 4,
4X and 12
Standard Finishes:
Stainless Steel – Type 316
UL File No. E-59509
• Aluminum: Natural
• Zinc: Natural
Optional Materials and Finishes:
• Stainless: Natural
Cat. #
• Zinc: Chrome-plate
SSTG
SSTG
SSTG
SSTG
SSTG
SSTG
SSTG
SSTG
SSTG
SSTG
www.crouse-hinds.com
US: 1-866-764-5454
1
2
3
4
5
6
7
8
9
10
Size
Unit
Qty.
Wt. Lbs.
Per 100
/2"
/4"
1"
11/4"
11/2"
2"
21/2"
3"
31/2"
4"
10
10
10
5
5
5
2
2
2
2
20
30
43
55
73
95
—
—
—
—
1
3
CAN: 1-800-265-0502
Copyright© 2012 Cooper Crouse-Hinds
49
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Page 53
Myers™ Hubs
SCHEDULE OF DIMENSIONS
J "O" Ring
K
Cat. #
A
B
C
D
Min.
Max.
F
G
H
C.S.
O.D.
Min.
Max.
/4
3
/8
1
/2
3
/4
1
11/4
11/2
2
21/2
3
31/2
4
5
6
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
13/2
13/2
111/32
115/32
121/32
111/16
111/16
13/4
27/32
25/16
23/8
27/16
215/16
3
/16
11/8
17/16
123/32
2
23/8
23/4
31/4
33/4
43/8
5
51/2
67/8
711/16
/32
21
/32
13
/16
29
/32
11/32
11/32
11/32
13/32
19/32
13/8
17/16
11/2
2
2
/8
1
/8
3
/16
3
/16
1
/4
1
/4
1
/4
1
/4
1
/4
1
/4
1
/4
1
/4
1
/4
5
/16
.350
.468
.591
.783
.997
1.311
1.529
1.964
2.346
2.915
3.371
3.825
4.795
5.762
.364
.493
.622
.824
1.049
1.380
1.610
2.067
2.469
3.068
3.548
4.026
5.047
6.065
1
/4 NPT
3
/8 NPT
1
/2 NPT
3
/4 NPT
1 NPT
11/4 NPT
11/2 NPT
2 NPT
21/2 NPT
3 NPT
31/2 NPT
4 NPT
5 NPT
6 NPT
1
/4 NPS
3
/8 NPS
1
/2 NPS
3
/4 NPS
1 NPS
11/4 NPS
11/2 NPS
2 NPS
21/2 NPS
3 NPS
31/2 NPS
4 NPS
5 NPS
6 NPS
60°
60°
60°
60°
60°
60°
60°
60°
60°
45°
45°
45°
45°
45°
3
/21
3
/32
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
1
/8
3
/4
15
/16
11/2
17/16
13/4
21/8
21/2
3
31/2
41/8
45/8
51/8
61/2
71/4
/64
43
/64
55
/64
11/16
121/64
143/64
159/64
225/64
257/64
333/64
41/64
433/64
537/64
641/64
/16
/16
7
/8
11/8
13/8
13/4
2
21/2
3
35/8
41/8
45/8
511/16
63/4
1
E
02
03†
1†
2†
3†
4†
5†
6†
7†
8
9
10
11*
12*
15
21
1
35
Conduit Hubs
Pipe
Size
9
11
*Not supplied with insulator.
Options:
Description
† Optional Nickel-Chrome Plate Finish. See price list.
Tolerance
Decimal
Fractional
Angular & Draft
+/–.010
+/–1/16
+/–2°
Suffix
-CP
Cat. #
Material
ST
STA
SSTG
Zinc
Aluminium
Stainless
Dimensions and materials specified are subject to change without prior notice.
PLAN VIEW SIDE VIEW
SPACING CHART FOR MYERS HUBS
"D" dimension indicated maximum panel thickness which hub will accommodate.
CONDUIT OR PIPE SIZE
HOLE COND.
SIZE. SIZE.
/16
11
/16
7
/8
11/8
13/8
13/4
2
21/2
3
35/8
41/8
45/8
511/16
63/4
9
/4
3
/8
1
/2
3
/4
1
11/4
11/2
2
21/2
3
31/2
4
5
6
1
/4
1
1 /16
15/32
15/16
17/16
19/32
125/32
131/32
27/32
215/32
225/32
33/32
311/32
41/32
413/32
19
/32
/8
3
/2
1
/4
1
11/4
11/2
2
21/2
3
31/2
4
5
6
113/16
131/32
25/32
211/32
219/32
227/32
35/32
315/32
323/32
413/32
425/32
31
/32
21/8
25/16
21/2
23/4
3
35/16
35/8
37/8
49/16
415/16
11/8
21/2
211/16
215/16
33/16
31/2
313/16
41/16
43/4
51/8
15/16
27/8
31/8
33/8
311/16
4
41/4
415/16
55/16
11/2
33/8
35/8
315/16
41/4
41/2
53/16
59/16
13/4
37/8
43/16
41/2
43/4
57/16
513/16
2
41/2
413/16
51/16
53/4
61/8
25/16
51/8
53/8
61/16
67/16
25/8
53/4
63/16
611/16
27/8
71/8
73/8
39/16
73/4
315/16
3
1
11/4
113/32
117/32
111/16
17/8
21/16
25/16
29/16
27/8
33/16
37/16
41/8
41/2
11
/16
19/16
111/16
127
/32
21/32
27/32
215/32
223/32
31/32
311/32
319/32
49/32
421/32
27/32
Minimum space from center of pipe or conduit to nearest obstruction.
1. Dimensions in top row (boxed squares) are centers for conduits of same size.
Example: How close may 3" conduits be spaced?
Answer 41/2"
2. Dimensions in gray shaded squares are for centers of conduits NOT of the same size.
Example: What is the minimum spacing for 2" and 3/4" conduit?
Read down column marked 3/ 4" to figure opposite 2" and find dimensions is 219/ 32".
3. Minimum spacing dimensions as shown will give approximately 1/8" clearance between locking nuts.
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
Copyright© 2012 Cooper Crouse-Hinds
53