Cut Sheet

Rigid and Intermediate Metal Conduit Fittings
ABCDE
TRADE MAX. PANEL THROAT
CAT. NO. SIZE DIA. THICKNESS DIA.
H050GR-TB
1
⁄2 1
7
⁄16 1
9
⁄16
7
⁄8
3
⁄16
19
⁄32
H075GR-TB
3
⁄4 1
7
⁄16 1
19
⁄32
29
⁄32
3
⁄16
25
⁄32
H100GR-TB 12 1
13
⁄16 1
1
⁄16
1
⁄4 1
H125GR-TB 1
1
⁄4 2
3
⁄8 1
7
⁄8 1
1
⁄16
1
⁄4 1
5
⁄16
H150GR-TB 1
1
⁄2 2
3
⁄4 1
7
⁄8 1
1
⁄16
1
⁄4 1
17
⁄32
H200GR-TB 23
1
⁄4 1
15
⁄16 1
5
⁄32
1
⁄4 1
31
⁄32
H250GR-TB 2
1
⁄2 3
3
⁄4 2
9
⁄16 1
9
⁄16
1
⁄4 2
13
⁄32
H300GR-TB 34
3
⁄8 2
7
⁄16 1
19
⁄32
1
⁄4 2
31
⁄32
H350GR-TB 3
1
⁄2 52
23
⁄32 1
5
⁄8
1
⁄4 3
13
⁄32
H400GR-TB 45
1
⁄2 2
23
⁄32 1
5
⁄8
1
⁄4 3
7
⁄8
H500GR-TB 56
7
⁄8 3
1
⁄32 1
15
⁄16
1
⁄4 4
15
⁄16
H600GR-TB 67
11
⁄16 3
5
⁄32 2
5
⁄16 6
TRADE GROUND MAX. CONDUCTOR
CAT. NO. SIZE DIA. HEIGHT SCREW SIZE
L050GR-TB
1
⁄2 1
1
⁄2
13
⁄32 #10-32 x
1
⁄4" #10
L075GR-TB
3
⁄4 1
11
⁄16
13
⁄32 #10-32 x
1
⁄4" #10
L100GR-TB 12
13
⁄32 #10-32 x
1
⁄4" #10
L125GR-TB 1
1
⁄4 2
3
⁄8
15
⁄32
1
⁄4-20 x
1
⁄4" #10
L150GR-TB 1
1
⁄2 2
3
⁄4
15
⁄32
1
⁄4-20 x
5
⁄16"#8
L200GR-TB 23
1
⁄4
15
⁄32
1
⁄4-20 x
5
⁄16"#8
L250GR-TB 2
1
⁄2 3
3
⁄4
11
⁄16
1
⁄4-20 x
5
⁄16"#6
L300GR-TB 34
3
⁄8
23
⁄32
1
⁄4-20 x
5
⁄16"#6
L350GR-TB 3
1
⁄2 5
23
⁄32
1
⁄4-20 x
5
⁄16"#6
L400GR-TB 45
1
⁄2
23
⁄32
1
⁄4-20 x
5
⁄16"#4
L500GR-TB 56
5
⁄8
23
⁄32
3
⁄8-16 x
3
⁄8"#2
L600GR-TB 67
11
⁄16
23
⁄32
3
⁄8-16 x
3
⁄8"#1
Material – Locknut: zinc or copper-free aluminum UL File No. E-3060
For Aluminum Locknuts add suffix A. (i.e., L050GRA) CSA File No. 4484
For Chrome-Plated Locknuts add suffix CP. (i.e., L050CP). For 316 Stainless Steel Locknuts
add suffix SST (
1
⁄ 2 " through 2" only.) For Locknut with Lay In Lug add suffix GRL
DIA.
T&B Hub Centerline Spacing Chart
CONDUIT
TRADE SIZE
1
⁄2"
3
⁄4"1"1
1
⁄4"1
1
⁄2"2" 2
1
⁄2"3" 3
1
⁄2"4" 5" 6"
1
⁄2"1
9
⁄16
3
⁄4"1
43
⁄64 1
25
⁄32
1" 1
27
⁄32 1
61
⁄64 2
1
⁄8
1
1
⁄4"2
1
⁄32 2
9
⁄64 2
5
⁄16 2
1
⁄2
1
1
⁄2"2
7
⁄32 2
21
⁄64 2
1
⁄2 2
11
⁄16 2
7
⁄8
2" 2
15
⁄32 2
37
⁄64 2
3
⁄4 2
15
⁄16 3
1
⁄8 3
3
⁄8
2
1
⁄2"2
23
⁄32 2K 3 3
3
⁄16 3
3
⁄8 3
5
⁄8 3
7
⁄8
3" 3
1
⁄32 3
9
⁄64 3
5
⁄16 3
1
⁄2 3
11
⁄16 3
15
⁄16 4
3
⁄16 4
1
⁄2
3
1
⁄2"3
11
⁄32 3
21
⁄64 3
5
⁄8 3
13
⁄16 44
1
⁄4 4
1
⁄2 4
13
⁄16 5
1
⁄8
4" 3
19
⁄32 3
45
⁄64 3
7
⁄8 4
1
⁄16 4
1
⁄4 4
1
⁄2 4
3
⁄4 5
1
⁄16 5
3
⁄8 5
5
⁄8
5" 4s 3ç 4
9
⁄16 4
3
⁄4 4
15
⁄16 5
3
⁄16 5
7
⁄16 5
3
⁄4 6
1
⁄16 6
5
⁄16 7
6" 4
11
⁄16 4J 4
31
⁄32 5
5
⁄32 5
11
⁄32 5
19
⁄32 5
27
⁄32 6
5
⁄32 6
15
⁄32 6
23
⁄32 7
13
⁄32 7
13
⁄16
Nearest Obstruction
27
⁄32
61
⁄64 1
1
⁄8 1
5
⁄16 1
1
⁄2 1
3
⁄4 22
5
⁄16 2
5
⁄8 2
7
⁄8 2
9
⁄16 3
31
⁄32
to Center of Hub
T&B Grounding Hub
T&B Grounding and
Bonding Locknut
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.
UL File No. E-23018 CSA File No. 4484
Chrome-Plated Hubs (suffix-“CP”) are rated NEMA 4X.
Grounding Locknut for Hubs
Throat Dia. E
D
B
A
C
A-18
United States
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