Cut Sheet

Metal Clad Cable, Armored Cable and Flexible Metal
Conduit Fittings
INS. CABLE OPENING (IN.) TRADE K.O. DIMENSIONS (IN.)
CAT. NO. CAT. NO. MAX. MIN. SIZE SIZE A† B C
266-TB 266-I-TB .656 .406
3
⁄8"
1
⁄2"1
1
⁄2 1
13
⁄32 1
7
⁄16
272** 272-I** .812 .688
3
⁄8"
1
⁄2"1
9
⁄16 1
7
⁄8 —
268-TB 268-I-TB .937 .813
1
⁄2"
1
⁄2"1
11
⁄16 1
13
⁄16 1
7
⁄8
279 279-I 1.000 .875
3
⁄4"
3
⁄4"1
13
⁄16 2
1
⁄16 1
13
⁄16
270 270-I 1.125 1.000
3
⁄4"
3
⁄4"1
7
⁄8 1
3
⁄4 1
13
⁄16
273-TB 273-I-TB 1.406 1.187 1" 1" 2
3
⁄8 2
7
⁄32 2
7
⁄16
274*** 274-I*** 1.656 1.375 1
1
⁄4"1
1
⁄4"333
275*** 275-I*** 1.875 1.625 1
1
⁄2"1
1
⁄2"3
3
⁄8 3
5
⁄16 4
276*** 276-I*** 2.500 2.125 2" 2" 4
1
⁄2 3
13
⁄16 4
7
⁄8
282-TB*** †† 282-I-TB*** †† 3.100 2.520 2
1
⁄2"2
1
⁄2"4
5
⁄16 5
17
⁄16 7
9
⁄16
283-TB*** †† 283-I-TB*** †† 3.640 3.100 3" 3" 5
1
⁄16 6
9
⁄16 8
15
⁄16
284-TB*** †† 284-I-TB*** †† 4.220 3.700 3
1
⁄2"3
1
⁄2"6
13
⁄16 8
5
⁄16 11
1
⁄4
285-TB*** †† 285-I-TB*** †† 4.600 4.100 4" 4" 7
1
⁄4 8
7
⁄8 12
3
⁄8
Only two screws to tighten!
Squeeze Connectors —
90° Angle
INS. CABLE OPENING (IN.) TRADE K.O. DIMENSIONS (IN.)
CAT. NO. CAT. NO. MAX. MIN. SIZE SIZE A† B C
265 265-I .656 .406
3
⁄8"
1
⁄2"1
17
⁄32
15
⁄32 1
1
⁄8
267 267-I .937 .813
1
⁄2"
1
⁄2"1
23
⁄32
1
⁄2 1
1
⁄4
269 269-I 1.125 1.000
3
⁄4"
3
⁄4"2
17
⁄32 1
9
⁄16
UL File No. E-23018
CSA File No. 2884
UL Listed for Armored Cable and Flexible Metal Conduit.
• Cap lifts off simply by loosening
screws partway
•
3
⁄8" and
1
⁄2" sizes made of steel
•
3
⁄4" and larger sizes made of malleable iron
• Add “I” suffix for insulated throat
** UL Listed for armored cable only.
*** UL Listed for flexible metal conduit only.
†† c ULus Certified
UL File No. E23018
CSA File No. 2884
Fast and easy installation — simply loosen screws partway to lift off cap!
Squeeze Connectors — 45° Angle
•
3
⁄8" and
1
⁄2" sizes made of steel
•
3
⁄4" size made of malleable iron
• Add “I” suffix for insulated throat
A
B
C
A
B
C
A-160
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com
A
B
C
• Malleable iron or steel construction
• Catalog No. 253 is steel
• Add “I” suffix for insulated throat
Fits every size of armored cable, metal clad cable and flexible metal conduit!
Squeeze Connectors —
Straight
INS. CABLE OPENING (IN.) TRADE K.O. DIMENSIONS (IN.)
CAT. NO. CAT. NO. MAX. MIN. SIZE SIZE A† B C
252*** — .531 .437
5
⁄16"
3
⁄8"
13
⁄16
25
⁄32
11
⁄32
253-TB** †† 253-I-TB** †† .585 .455
3
⁄8"
1
⁄2"
31
⁄32 1
13
⁄64
5
⁄8
254-TB 254-I-TB .938 .812
1
⁄2"
1
⁄2"1
7
⁄32 1
3
⁄8
13
⁄32
255 255-I 1.094 .938
3
⁄4"
3
⁄4"1
1
⁄4 1
17
⁄32
7
⁄16
256 256-I 1.375 1.250 1" 1" 1
19
⁄32 1
5
⁄8
1
⁄2
257*** 257-I*** 1.656 1.500 1
1
⁄4"1
1
⁄4"1
7
⁄8 1
23
⁄32
17
⁄32
258*** 258-I*** 1.875 1.688 1
1
⁄2"1
1
⁄2"2
1
⁄4 1
7
⁄16
9
⁄16
259*** 259-I*** 2.500 2.313 2" 2" 2
31
⁄32 2
5
⁄8
11
⁄16
249*** 249-I*** 3.062 2.812 2
1
⁄2"2
1
⁄2"3
5
⁄16 2
11
⁄16
3
⁄4
277*** 277-I*** 3.563 3.312 3" 3" 3
13
⁄16 2
7
⁄8
3
⁄4
278-TB*** †† 278-I-TB*** †† 4.370 3.200 3
1
⁄2"3
1
⁄2"6
5
⁄8 5
1
⁄4 1
5
⁄16
281-TB*** †† 281-I-TB*** †† 4.600 3.500 4" 4" 7
1
⁄4 5
3
⁄4 1
5
⁄8
** UL Listed for armored cable only. Fitting material steel.
*** UL Listed for flexible metal conduit only.
† Approximate dimension with screw at minimum height.
†† c ULus Certified
.485"–.660" cable opening range for 253-I-TB.
UL File No. E 23018
CSA File No. 2884