IF1349 Installation Directions

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GUA SEALING COVERS FOR USE WITH
GUA CONDULET OUTLET BOXES
Installation & Maintenance Information

IF 1349

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE
The National Electrical Code (NEC) in Article 501, Section 501-5,
Class I, Divisions 1 and 2, requires that seals be installed in specific
places. This is to minimize the passage of gases and vapors and
prevent the passage of flames through the conduit from one portion
of the electrical installation to another portion.
®

While not a Code requirement, it is considered good practice to
sectionalize long conduit runs by inserting seals not more than 50 to
100 feet apart, depending on the conduit size, to minimize the
effects of “pressure piling”.
The Code in Section 502-5 requires seals in Class II locations under
certain conditions. Crouse-Hinds sealing fittings can be used to
meet this requirement.
Conduit seals are not intended to prevent the passage of liquids,
gases or vapors at a continuous pressure differential across the
seal. Even at differences in pressure across the seal equivalent to a
few inches of water, there may be a slow passage of gas or vapor
through a seal and through the conductors passing through the
seal.

c. Push conductors away from filing opening and force
them apart.
d. Pack fiber between AND around conductors in hub(s).

NOTE:
If conductors are stiff insert temporary wooden wedges
between conductors to aid in holding them apart. It is
important that conductors be separated from each other so
sealing compound will surround each conductor.

e. Pack fiber into hub(s) in front of conductors. Completed
dams should be flush with conduit bushing.

CAUTION:
Don’t leave shreds of fiber sticking to walls or conductors.
Such shreds form channels that allow leakage.

Conductors sealed in the compound should be approved
thermoplastic or rubber insulated type.
CAUTION
Refer to Table on back to determine the maximum number
and size of conductors allowed in a seal.
Only experienced, careful installers should be entrusted with
making the dam, mixing and pouring the compound. Improperly
made seals are worthless. Mixing vessel must be cleaned
thoroughly before mixing new compound.
CAUTION:
Splices are not permitted in sealing fittings under National
Electric Code Article 501-5 (c) (4).

2. Mix and pour Crouse-Hinds Chico sealing compound in
accordance with instructions furnished with compound.
Amount of new Chico X or one* hub of Crouse-Hinds sealing
fitting:
Hub Size
(inches)
1/2
3/4
1
1 1/4
1 1/2
2

Chico X Required
(ounces)
1/32
1/16
1/8
1/4
1/2
1

POURING SEALS
DAM PREPARATION
Construct dams, per instructions below.
Please note the required amount of Chico X fiber for 1/2”
through 2” hub size outlet bodies is also included.
1. Make dam in hub(s) of sealing fitting using Chico X in
following manner:
NOTE:
Vertical fittings need dam only in bottom hub.
Horizontal fittings need dam in both hubs.
a. Using a hardwood stick, force conductors towards filling
opening. DO NOT USE METAL TOOLS.
b. Pack Chico X Fiber into conduit hub(s) behind
conductors.

• Remove plug from sealing hub on the GUA sealing cover.
• Tighten GUA sealing cover until sealing hub points vertically
up.
• This should be done whether pouring a horizontal or vertical
seal.
• Pour Chico A compound into fitting immediately after mixing.
Fill GUA outlet box until Chico A compound reaches the
lowest edge of the threads in the sealing hub. Replace the
plug in the sealing hub of the GUA sealing cover.
CAUTION
Sealing compound to be mixed ONLY at temperatures above
40˚F/4˚C and ONLY poured into fittings that have been
brought to a temperature above 40˚F/4˚C. Seals must NOT
be exposed to temperatures below 40˚F/4˚C for at least
72 hours, compoiund MUST be allowed 72 hours to cure to
full strength before energizing system.

All statements, technical information and recommendations contained herein are based on information and tests we believe to be
reliable. The accuracy or completeness thereof are not guaranteed. In accordance with Crouse-Hinds "Terms and Conditions of Sale",
and since conditions of use are outside our control, the purchaser should determine the suitability of the product for his intended use
and assumes all risk and liability whatsoever in connection therewith.

Quality from
Cooper Industries

Cooper Industries Inc.
Crouse-Hinds Division
PO Box 4999
Syracuse, New York 13221 • U.S.A.

IF1349
Revised 10/95
Supercedes 8/95
Copyright© 1995, Cooper Industries, Inc.

5
3
1
1
1
1
1
1

10
8
6
4

3
2
1
1/0
1

1
1
1
1

7
3
2
1

19
15
14
10

2
1
1
1

9
4
2
2

24
19
15
12

1
1
1
1

3
2
2
1

15
7
4
3

39
31
25
20

1
1
1
1

3
3
2
2

18
9
7
4

55
43
39
29

1” CONDUIT
A
B
40% WF 40% WF

Col.B = FEP,THHN,THWN,TFN,PF,PGF
XHHW(AWG4 - 2000 MCM)
FEPB(AWG14 - 8)

1

2
2
1
1

11
6
4
2

34
27
24
18

3/4” CONDUIT
A
B
40% WF 40% WF

Col.A = Types RFH-2, RH,RHH,RHW,THW,TW
XHHW(AWG 14 - 6)
FEPB(AWG 6 - 2)

900
1000
1250
1500
1750
2000

600
700
750
800

300
350
400
500

2/0
3/0
4/0
250

13
11
9
7

1/2” CONDUIT
A
B
40% WF 40% WF

18
16
14
12

SIZE
AWG OR
KCmil

1
1
1

2
2
2
1

5
4
3
2

27
13
7
5

67
54
41
34

1
1
1

3
2
1
1

6
5
4
2

32
16
11
7

95
75
68
50

1 1/4” CONDUIT
A
B
40% WF 40% WF

1
1
1
1

3
2
2
2

6
5
4
3

36
17
10
7

92
74
60
47

1
1

1
1
1
1

4
3
2
2

8
7
5
4

44
22
16
9

131
103
93
69

1 1/2” CONDUIT
A
B
40% WF 40% WF

1
1

1
1
1
1

2
1
1
2

5
4
3
3

11
9
7
6

60
28
16
12

152
123
90
76

1
1

1
1
1
1

3
3
2
1

6
5
4
3

13
11
8
7

73
36
26
16

216
170
154
115

2” CONDUIT
A
B
40% WF 40% WF

MAXIMUM NUMBER OF CONDUCTORS THAT CAN BE SEALED IN A CROUSE-HINDS GUA SEALING FITTING



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