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Page 219
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
• Ideal for pharmaceutical, chemical and food processing,
pulp/paper and nuclear industries.
• 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
/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*
3
1
CP
• Resistant to a variety of chemicals, including acetic, citric and salt
water.
†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)
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
1
• Insuliner: Lexan
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
• O-Ring: Gasket Vi Ton
*Not supplied with insulator.
Class III, Division 1 & 2
• 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, Aluminium (Al 360), Stainless (316)
• Body: Zamek-2, Zamek-3, Aluminium (Al 360), Stainless (316)
• Ground Screw: Steel
1
2
3
4
5
6
7
8
9
10
11*
12*
3
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
• Zinc: Chrome-plate
Cat. #
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© 2011 Cooper Crouse-Hinds
219
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Page 220
Myers™ Hubs
Ground Hub – NEMA 2, 3, 3R, 4, 4X and 12
Ground Hub Basic Scru-Tite®
Zinc
Zinc
ATEX Approval with DEMKO 07 ATEX 0618172U
UL File No. E-59509
Class I, Zone 1, AEx e II
Class I, Zone 1, Ex e II
CP
II 2 G Ex e II
UL File No. 187273
Max. Copper
Grd. Wire Size
Cat. #
Size
Unit
Qty.
Wt. Lbs.
Per 100
CSA
UL
Cat. #
STG
STG
STG
STG
STG
STG
STG
STG
STG
STG
STG
STG
/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
20
30
43
55
73
95
190
263
300
350
625
750
#8
#8
#8
#8
#6
#4
#2
1/
2/
2/
2/
3/
#8
#8
#8
#8
#8
#8
#6
#6
#6
#4
#2
#1
STGK
STGK
STGK
STGK
STGK
STGK
1
2
3
4
5
6
7
8
9
10
11*
12*
1
3
0
0
0
0
0
1
2
3
4
5
6
Size
Unit Qty.
Wt. Lbs.
Per 100
/2"
/4"
1"
11/4"
11/2"
2"
10
10
10
5
5
5
20
30
43
55
73
95
1
3
Stainless Steel – Type 316
ATEX Approval with DEMKO 07 ATEX 0618172U
II 2 G Ex e II
Class I, Zone 1, AEx e II
UL File No. E-187273 Class I, Zone 1, Ex e II
*Not supplied with insulator
Ground Hub – NEMA 2, 3, 3R, 4, 4X and 12
Aluminum – Type 360
Cat. #
Max. Copper
Grd. Wire Size
Cat. #
STAG
STAG
STAG
STAG
STAG
STAG
STAG
STAG
STAG
STAG
STAG
STAG
220
1
2
3
4
5
6
7
8
9
10
11
12
Size
Unit
Qty.
Wt. Lbs.
Per 100
CSA
UL
/2"
3
/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
10
14
18
25
33
45
90
125
138
150
325
350
#8
#8
#8
#8
#6
#4
#2
1/
2/
2/
3/
3/
#8
#8
#8
#8
#8
#8
#6
#6
#6
#4
#2
#1
1
www.crouse-hinds.com
US: 1-866-764-5454
0
0
0
0
0
CAN: 1-800-265-0502
SSTGK
SSTGK
SSTGK
SSTGK
SSTGK
SSTGK
1
2
3
4
5
6
Size
Unit Qty.
Wt. Lbs.
Per 100
/2"
/4"
1
11/4"
11/2"
2
10
10
10
5
5
5
20
30
43
55
73
95
1
3
Ground Nut
Zinc
Max. Copper
Grd. Wire Size
Cat. #
STGN
STGN
STGN
STGN
STGN
STGN
1
2
3
4
5
6
Size
Unit
Qty.
Wt. Lbs.
Per 100
CSA
UL
/2"
3
/4"
1"
11/4"
11/2"
2"
25
25
25
10
10
10
6
10
13
15
23
30
#8
#8
#8
#8
#6
#4
#8
#8
#8
#8
#8
#8
1
Copyright© 2011 Cooper Crouse-Hinds
220-221.qxp
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Page 221
Myers™ Hubs
Ground Nut
Through-Bulkhead Fitting
Aluminum
Aluminum
Packaged as two pieces unassembled
STAGN
STAGN
STAGN
STAGN
STAGN
STAGN
Size
1
2
3
4
5
6
/2"
/4"
1"
11/4"
11/2"
2"
1
3
Unit Qty. Wt. Lbs. Per 100
25
25
25
10
10
10
3
5
6
8
10
13
#8
#8
#8
#8
#6
#4
Cap-Off
#8
#8
#8
#8
#8
#8
Cat. #
STTBA
STTBA
STTBA
STTBA
STTBA
STTBA
STTBA
STTBA
1*
2*
3*
4*
5*
6*
7
8
Size
Unit Qty.
Wt. Lbs. Per 100
/2"
3
/4"
1"
11/4"
11/2"
2"
21/2"
3"
5
5
5
5
5
5
4
2
20
35
30
40
50
70
106
138
1
CP
Cat. #
Max. Copper
Grd. Wire
Size
CSA
UL
*UL Listed
Zinc
Through-Bulkhead Fitting without nipples
Zinc
Packaged as two pieces unassembled
Cat. #
Size
Unit Qty.
Wt. Lbs. Per 100
STC
STC
STC
STC
STC
STC
/2"
3
/4"
1"
11/4"
11/2"
2"
25
25
25
10
10
10
13
20
28
40
53
70
1
2
3
4
5
6
1
Cap-Off
Aluminum
Cat. #
STTTB
STTTB
STTTB
STTTB
STTTB
STTTB
1
2
3
4
5
6
Size
Unit Qty.
Wt. Lbs. Per 100
/ 2"
3
/ 4"
1"
11/ 4"
11/ 2"
2"
5
5
5
5
5
5
35
60
75
85
120
170
1
Through–Bulkhead Fitting without nipples
Aluminum
Cat. #
Size
Unit Qty.
Wt. Lbs. Per 100
STAC 1
STAC 2
STAC 3
/2"
3
/4"
1"
25
25
25
6
8
12
1
Through-Bulkhead Fitting
Zinc
Cat. #
STTB 1*
STTB 2*
STTB 3*
STTB 4*
STTB 5*
STTB 6*
STTB 7
STTB 8
STTB 9
STTB 10
Size
/2"
3
/4"
1"
11/4"
11/2"
2"
21/2"
3"
31/2"
4"
1
Unit Qty.
5
5
5
5
5
5
4
2
2
2
Cat. #
STTTBA
STTTBA
STTTBA
STTTBA
STTTBA
STTTBA
1
2
3
4
5
6
Size
Unit Qty.
Wt. Lbs. Per 100
/2"
3
/4"
1"
11/4"
11/2"
2"
5
5
5
5
5
5
15
25
35
40
50
75
1
Wt. Lbs. Per 100
30
50
70
85
110
160
244
312
350
400
*UL Listed
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
Copyright© 2011 Cooper Crouse-Hinds
221
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Page 222
CP
Myers™ Hubs
Non-Hazadous Drain Plug
Metric To NPT Adapter
Stainless Steel
UL File No. E-23223
Zinc
Cat. #
Size
Unit Qty.
Wt. Lbs. Per 100
SSTC 1
SSTC 1CD
1
/2"
/2"
25
10
13
13
Note:
1
SSTC-1 is for knockouts and is supplied with a locknut and straight threads.
SSTC-1CD is for threaded openings and is supplied without locknut and NPT
threads. Not gasketed to allow for water drainage
Cat. #
Size
STM
STM
STM
STM
STM
STM
M20
M25
M32
M40
M50
M63
Note:
Non-Hazadous Drain Plug
Aluminum
UL File No. E-23223
1
2
3
4
5
6
Unit Qty.
Wt. Lbs. Per 100
25
25
25
10
10
10
12
32
32
40
50
70
Metric To NPT Adapter
Stainless Steel
Size
Unit Qty.
Wt. Lbs. Per 100
Cat. #
STAC 1ST
STAC 1CD
1
/2"
1
/2"
25
25
6
6
SSTM
SSTM
SSTM
SSTM
SSTM
SSTM
222
/2"
3
/4"
1"
11/4"
11/2"
2"
1
The Myers Metric to NPT hub adapter is used to convert a threaded metric entry to
a NPT entry. The female thread is NPT and the male thread is metric.
Cat. #
Note:
to
to
to
to
to
to
STAC-1ST is for knockouts and is supplied with a locknut and straight threads.
STAC-1CD is for threaded openings and is supplied without locknut and NPT
threads. Not gasketed to allow for water drainage
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
Size
1
2
3
4
5
6
M20
M25
M32
M40
M50
M63
to
to
to
to
to
to
/2"
3
/4"
1"
11/4"
11/2"
2"
1
Copyright© 2011 Cooper Crouse-Hinds
Unit Qty.
Wt. Lbs. Per 100
10
10
10
5
5
5
12
20
32
40
50
70
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Page 223
Myers™ Hubs
SCHEDULE OF DIMENSIONS
Pipe
Size
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
1
/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
/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
/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
35
/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
15
21
1
3
9
11
CP
02
03†
1†
2†
3†
4†
5†
6†
7†
8
9
10
11*
12*
*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 dark gray shaded squares are centers for conduits of same size.
Example: How close may 3 conduits be spaced?
Answer 41/2"
2. Dimensions in lighter 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 211/32".
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© 2011 Cooper Crouse-Hinds
223