Cut Sheet

Rigid and Intermediate Metal Conduit Fittings
A-17
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com
ABCDE
TRADE MAX. PANEL THROAT
CAT. NO. SIZE DIA. THICKNESS DIA.
H050-TB
1
⁄2 1
7
⁄16 1
9
⁄16
7
⁄8
3
⁄16
19
⁄32
H075-TB
3
⁄4 1
7
⁄16 1
19
⁄32
29
⁄32
3
⁄16
25
⁄32
H100-TB 121
13
⁄16 1
1
⁄16
1
⁄4 1
H125-TB 1
1
⁄4 2
3
⁄8 1
7
⁄8 1
1
⁄16
1
⁄4 1
5
⁄16
H150-TB 1
1
⁄2 2
3
⁄4 1
7
⁄8 1
1
⁄16
1
⁄4 1
17
⁄32
H200-TB 23
1
⁄4 1
15
⁄16 1
5
⁄32
1
⁄4 1
31
⁄32
H250-TB 2
1
⁄2 3
3
⁄4 2
9
⁄16 1
9
⁄16
1
⁄4 2
13
⁄32
H300-TB 34
3
⁄8 2
7
⁄16 1
19
⁄32
1
⁄4 2
31
⁄32
H350-TB 3
1
⁄2 52
23
⁄32 1
5
⁄8
1
⁄4 3
13
⁄32
H400-TB 45
1
⁄2 2
23
⁄32 1
5
⁄8
1
⁄4 3
7
⁄8
H500-TB 56
7
⁄8 3
1
⁄32 1
15
⁄16
1
⁄4 4
15
⁄16
H600-TB 67
11
⁄16 3
5
⁄32 2
5
⁄16 6
Material – Hub and Locknut: zinc or copper-free aluminum
Insulating Throat: thermoplastic temp. rating – 105° C
Flammability Rating – 94V-0
Sealing Ring: Nitrile (BUNA “N”)
For Aluminum Hubs add suffix A (i.e., H050A). For Chrome-Plated Hubs add suffix CP
(i.e., H050CP). For 316 Stainless Steel Hubs add suffix GRSST (i.e., H050GRSST).
(
1
⁄ 2 " through 2" only.) Meets NEMA sealing requirements for NEMA 3R, 4 & 13 enclosures.
UL Listed and CSA Certified. CSA Certified for hazardous locations Class II
Groups E, F, G, Class III (NEC 501.10B).
UL File No. E-23018 CSA File No. 4484
Chrome-Plated Hubs (suffix-“CP”) are rated NEMA 4X.
Throat Dia. E
D
Never before has a single hub fit like this one. Designed
for unequalled performance. The innovative engineering
of the T&B
®
Hub will, quite simply, raise your performance
expectations for threaded hubs. Look for the distinctive
blue color to ensure the quality of a Thomas & Betts fitting.
Sealing Ring and Groove with innovative profile outperforms
standard O-ring design. Sealing ring is captivated in place
before installation and resists buckling or slipping during
installation. The seal groove is designed for optimum
compression of the sealing ring. The sealing ring is
designed to provide a complete 360° seal, even when
the conduit is not perpendicular with the enclosure.
(See Figure 1)
Locknut Design with peripheral slots and a hexagonal/
angled spline spaced every 30° enables easy application
of torque with wrench or hammer and screwdriver.
(See Figures 2 & 3)
Sharper and Deeper Teeth on locknut and body designed
for a more penetrating bite for improved bonding to the
enclosure.
Hexagonal/Splined Body Design for fast, easy installation
with wrench or hammer and screwdriver.
Precision Machined Tapered Threads designed to create
watertight union.
Insulated Throat molded from 105° C rated thermoplastic
with a flammability rating of 94 V-O.
Fig. 1
4
1
2
5
3
6
Fig. 2 Fig. 3
T&B Hub
2
3
4
5
6
1
4
1
2
6
3
5
B
A
C