Rigid and Intermediate Metal Conduit Fittings
Bush holes in metal boxes or enclosures!
CHASE® Nipples
CAT. NO.
STL. OR M.I.
841TB
842TB
843TB
844
845
846
847
848
849
850
851
853
854
• 3⁄8" and 1⁄2" sizes in steel
• 3⁄4" to 6" sizes in malleable iron
DIMENSIONS (IN.)
B
ALUM.
SIZE
A
—
842ALTB†
843ALTB
844AL†
845AL†
846AL
847AL
848AL
849AL
850AL
851AL
853AL
854AL
⁄8"
⁄2"
3
⁄4"
1"
11⁄4"
11⁄2"
2"
21⁄2"
3"
31⁄2"
4"
5"
6"
⁄16
1 ⁄16
13⁄8
111⁄16
21⁄32
23⁄8
215⁄16
39⁄16
43⁄8
51⁄8
51⁄8
61⁄2
75⁄8
3
1
⁄16
⁄64
19
⁄32
3
⁄64
25
⁄32
13
⁄16
31
⁄32
11⁄16
11⁄4
15⁄16
15⁄16
15⁄16
13⁄8
15
7
43
9
† Not UL Listed
• 1⁄2" to 6" sizes in copper-free aluminum
Available with DURA-PLATE® Finish.
UL File No. E-23018
CSA File No. 2884
Nylon insulator offers extra protection!
CHASE® Nipples — Nylon-Insulated
• 3⁄8" and 1⁄2" sizes in steel
• 3⁄4" to 6" sizes in malleable iron
• 1⁄2" to 6" sizes in copper-free aluminum
• Look for the unique T&B blue color ensuring
the highest quality fitting available
A-14
www.tnb.com
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
CAT. NO.
SIZE
A
DIMENSIONS (IN.)
B
C
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1953
1954
⁄2"
3
⁄4"
1"
11⁄4"
11⁄2"
2"
21⁄2"
3"
31⁄2"
4"
5"
6"
19⁄64
13⁄8
111⁄16
21⁄32
23⁄8
215⁄16
39⁄16
43⁄8
51⁄8
51⁄8
63⁄8
75⁄8
⁄16
17
⁄32
21
⁄32
25
⁄32
13
⁄16
31
⁄32
11⁄16
1i
15⁄16
15⁄16
15⁄16
13⁄8
⁄32
⁄32
7
⁄8
11⁄32
13⁄32
111⁄32
17⁄16
119⁄32
125⁄32
113⁄16
113⁄16
17⁄8
1
UL File No. E-23018
CSA File No. 2884
Canada
Tel: 450.347.5318
Fax: 450.347.1976
Technical Services
Tel: 888.862.3289
7
19
23
Rigid and Intermediate Metal Conduit Fittings
Made from flame-retardant, non-dripping thermoplastic, UL rated 105° C!
Knockout Plugs
1451 Series
Application
• To plug unused knockout openings in a box or enclosure
Features
• One-piece construction designed to snap in place
105° C rated by UL Made from
flame retardant, non-dripping
thermoplastic.
• High impact strength self-extinguishing non-dripping
(per UL-94) thermoplastic construction
Standard Material
Wall thickness of box or enclosure
.095" max. up to 1" trade size
Thermoplastic rated for 105° C (221° F) application
Standard Finish
.140" max. through 2" trade size.
As molded
Listed/Certified by
Range
UL (UL File No. E13938)
.875" through 2.469" Nominal Diameter
CSA (LR589)
Knockout opening ( ⁄2" through 2" trade size knockouts)
Conforms to
1
CAT.
NO.
SIZE
DIMENSIONS (IN.)
A
B
1451
1452
1453
1454
1455
1456
⁄2"
⁄4"
1"
11⁄4"
11⁄2"
2"
1.060
1.300
1.590
1.860
2.240
2.740
1
3
.400
.400
.400
.450
.570
.570
Wall thickness of electrical box .095 max.
Meets Coast Guard Regulation CB293.
UL File No. E-13938
CSA File No. 4484
UL 514B
NFPA 70
Eliminates need for separate capped bushing or steel penny and bushing!
Plug, Conduit, Connectors (Push-Penny® Plugs)
Conforms to
Application
• To plug open end of conduit or connector
in order to prevent ingress of trash,
dirt or moisture during construction
and remodeling
Features
• Wide range of applications; can be used
with rigid metal conduit, intermediate
metal conduit, electrical metallic tubing,
all connnectors and all bushings
• Designed to stand up to normal
handling and is functionally
unaffected by moisture
• Economically seal out grout and
plaster from any fitting or raceway
conforming to CSA dimensional
tolerances
• Just push into place
• Pressure holds plug fast against
internal surface of fitting or raceway
• Made of flexible plastic
Standard Material
Polyethylene
Standard Finish
As molded
Listed/Certified by
• Used under a bushing to seal
end of conduit during construction
• Completely salvageable
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
CAT. NO.
SIZE
1470
1471
1472
1473
1474
1475
1476*
1477*
1478*
1479*
⁄2"
⁄4"
1"
11⁄4"
11⁄2"
2"
21⁄2"
3"
31⁄2"
4"
1
3
*Not CSA Certified.
CSA File No. 2884
UL not applicable.
CSA (LR2884, LR4484)
Made to fit any bushing!
Pennies — Steel
UL 514B
CSA C22.2 No. 18
NFPA 70
NEMA FB1
CAT. NO.
SIZE
CAT. NO.
SIZE
815-TB
816
817
818
819
820
⁄2"
⁄4"
1"
11⁄4"
11⁄2"
2"
821
822
824
823
21⁄2"
3"
31⁄2"
4"
Canada
Tel: 450.347.5318
Fax: 450.347.1976
1
3
UL not applicable.
CSA File No. 2884
Technical Services
Tel: 888.862.3289
www.tnb.com
A-13