Thomas & Betts T&B Fittings Catalog Page
Bushings, Nipples, Locknuts and Plugs
Meets and surpasses NEC® requirements!
Insulated Throat Fittings
• Steel or malleable iron (steel through 11⁄2")
Rigid Fittings
®
Conduit & Fittings — T&B
• Exceeds NEC 373-6C requirements for
protection of ungrounded connectors at
entrance to raceways, pull boxes and
junctions
• Recognizable by distinctive trademarked
blue insulating liner in throat
• Reduces wire pulling effort by as much as 50%
• Temperature rating of 105° C
• Look for the unique T&B blue color, ensuring
the highest quality fitting
STl. Or m.i. Alum. A B
1222 1222Al
1223 1223Al
1224 1224Al 1" 119⁄32
1225 1225Al 11⁄4" 115⁄16
1226 1226Al 11⁄2" 23⁄16
1227 1227Al 2" 211⁄16
1228 1228Al 21⁄2" 33⁄16
1229 1229Al 3" 327⁄32
1230 1230Al 31⁄2" 47⁄16 11⁄16
1231 1231Al 4" 47⁄8 13⁄32
1232
586 586Al 5" 5
587 587Al 6" 73⁄16 111⁄32
†
Not CSA Certified
Catalog series 1222 thru 1232, 586 and 587 are available in aluminum.
Add suffix AL to Cat. No. The aluminum series fittings are not CSA certified.
†
CAT. NO.
1232Al
Locknut-type base improves bonding
and resists loosening under vibration.
Metallic Bushings
• Aluminum, steel or malleable
iron (steel through 11⁄2")
• Smoothly rounded shoulder
covers end of conduit
SizE
1
⁄2" 11⁄32
3
⁄4" 19⁄32
A
B
Nylon insulated
metallic bushings
DimENSiONS (iN.)
29
31
11
21
23
⁄64
⁄64
⁄32
⁄32
⁄32
7
⁄8
1
⁄32
5
⁄16
• Broad flange covers knockout hole
• High ribs for easy tightening with
A
fingers or with wrench
1
•
⁄2" to 11⁄2" sizes, formed in steel,
feature extra-smooth shoulders
CAT. NO.
STl. Or m.i. Alum. A B
122 122Al
123 123Al*
SizE
1
⁄2" 11⁄32
3
⁄4" 11⁄4
DimENSiONS (iN.)
124 124Al** 1" 19⁄16
125-TB 125Al 11⁄4" 129⁄32
126 126Al 11⁄2" 25⁄32
127 127Al 2" 221⁄32
128 128Al 21⁄2" 33⁄16
129 129Al 3" 327⁄32
130-TB 130Al 31⁄2" 43⁄8
131-TB 131Al 4" 415⁄16 1
†
41⁄2" — —
31
⁄32 19⁄32
132-TB — 4
133-TB 133Al 5" 6 13⁄16
1
⁄2" 57⁄16 15⁄64
134-TB 134Al 6" 71⁄4 11⁄4
* Not UL Listed or CSA Certified
** Not CSA Certified
Available with DURA-PLATE
®
Finish.
UL File No. E-23018
CSA File No. 2884
B
13
⁄32
7
⁄16
1
⁄2
9
⁄16
19
⁄32
5
⁄8
3
⁄4
13
⁄16
15
⁄16
E-40
Perfect threads for easy thread-on!
Plastic Insulating Bushings
B
All Plastic Insulating
Bushings
• Impact-resistant plastic insulation
• Ribbed for easy, secure gripping
• UL Listed 105° C
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
DimENSiONS (iN.)
CAT. NO.
A
222-TB
223-TB
224 1" 19⁄16
225-TB 11⁄4" 129⁄32
226 11⁄2" 27⁄32
227 2" 225⁄32
228-TB 21⁄2" 33⁄8
229-TB 3" 41⁄16
230-TB 31⁄2" 45⁄8
231 4" 51⁄8
SizE
1
⁄2" 11⁄16
3
⁄4" 19⁄32
A B
3
⁄8
13
⁄32
9
⁄16
9
⁄16
9
⁄16
5
⁄8
3
⁄4
3
⁄4
7
⁄8
7
⁄8
232 41⁄2" 511⁄16 1
5
233 5" 6
234 6" 7
UL Rated flame retardant 94V-1
Technical Services
Tel: 888.862.3289
www.tnb.com
⁄16 1
7
⁄16 1
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