IF1349 Installation Directions

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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.

Conductors sealed in the compound should be approved

thermoplastic or rubber insulated type.

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).

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.

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.

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 Chico X Required

(inches) (ounces)

1/2 1/32

3/4 1/16

1 1/8

1 1/4 1/4

1 1/2 1/2

21

POURING SEALS

• 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.

GUA SEALING COVERS FOR USE WITH

GUA CONDULET OUTLET BOXES

Installation & Maintenance Information

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE

IF 1349

CAUTION

Refer to Table on back to determine the maximum number

and size of conductors allowed in a seal.

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.

Cooper Industries Inc. IF1349

Crouse-Hinds Division Revised 10/95

PO Box 4999 Supercedes 8/95

Syracuse, New York 13221 • U.S.A. Copyright© 1995, Cooper Industries, Inc.

Quality from

Cooper Industries

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

SIZE

AWG OR

KCmil

18 13 19 24 34 39 55 67 95 92 131 152 216

16 11 15 19 27 31 43 54 75 74 103 123 170

14 9 14 15 24 25 39 41 68 60 93 90 154

12 7 10 12 18 20 29 34 50 47 69 76 115

10 5 7 9 11 15 18 27 32 36 44 60 73

8 3 3 4 6 7 9 13 16 17 22 28 36

6 1 2 2 4 4 7 7 11 10 16 16 26

4 1 1 2 2 3 4 5 7 7 9 12 16

3 1 1 2 2 3 3 5 6 6 8 11 13

2 1 1 1 2 2 3 4 5 5 7 9 11

11 1 1 1 2 2 3 4 4 5 7 8

1/0 1 1 1 1 1 2 2 2 3 4 6 7

2/0 1 1 1 1 2 3 3 4 5 6

3/0 1 1 2 2 2 3 4 5

4/0 1 1 2 1 2 2 3 4

250 1 1 1 1 2 2 3 3

300 1 1 1 1 2 3

350 1 1 1 1 1 3

400 1 1 1 1 1 2

500 1 1 2 1

600 1 1 1

700 1 1 1

750 11

800 11

900 11

1000 11

1250

1500

1750

2000

1/2” CONDUIT

AB

40% WF 40% WF

3/4” CONDUIT

AB

40% WF 40% WF

1” CONDUIT

AB

40% WF 40% WF

1 1/4” CONDUIT

AB

40% WF 40% WF

1 1/2” CONDUIT

AB

40% WF 40% WF

2” CONDUIT

AB

40% WF 40% WF

Col.A = Types RFH-2, RH,RHH,RHW,THW,TW

XHHW(AWG 14 - 6)

FEPB(AWG 6 - 2)

Col.B = FEP,THHN,THWN,TFN,PF,PGF

XHHW(AWG4 - 2000 MCM)

FEPB(AWG14 - 8)