Cut Sheet
EA3 EA3
Effective December, 2007
Copyright 2007
800-621-1506
www.o-zgedney.com
Rigid Conduit Fittings
Type CHM & Type CHM-T
Use:
Type CHM - General Purpose Fitting.
Type CHM-T - Insulated Throat form with
Bonding Locknut.
Features:
• Male thread type
• Tapered female thread for rigid conduit
and IMC
• Recessed O-ring seal assures watertight
and dust tight connections
• Type CHM-T with insulated throat and
bonding locknut is suitable for service
entrance application
Material/Finish:
Malleable Iron/Zinc Electroplated
Optional Finish:
For additional corrosion protection, specify
Mechanically Galvanized
Contact your local representative for pricing
and availability.
Third Party Certification:
UL Listed: 11853
UL Listed as suitable for wet
locations.
CSA Certified: 009795
Raintight.
Suitable for use in hazardous
locations as follows:
Class I, Div. 2
Class II, Div. 1, 2
Class III, Div. 1, 2
Per NEC 501-4(b), 502-4(a),
503-3(a)
Applicable Third Party Standards:
UL Standard: 514B
CSA Standard: C22.2 No. 18
Fed. Spec: W-F-408E
• NEMA: FB-1
• NEMA: 4
• NEMA: 12
Note:
Minimum wall thickness that can be
accommodated is
1
⁄32”.
Dimensions in Inches
D
Female
Trade Size Catalog Tapered Max. Box
(inches)
Number A B C N.P.T. Wall Thk.
1
⁄2 CHM-50
7
⁄8 1
1
⁄2
1
⁄2
1
⁄2 -14
5
⁄16
3
⁄4 CHM-75 1 1
3
⁄4
1
⁄2
3
⁄4 - 14
3
⁄8
1 CHM-100 1
1
⁄8 2
5
⁄8 1 - 11
1
⁄2
7
⁄16
1
1
⁄4 CHM-125 1
1
⁄4 2
3
⁄8
5
⁄8 1
1
⁄4 - 11
1
⁄2
15
⁄32
1
1
⁄2 CHM-150 1
1
⁄4 2
3
⁄4
5
⁄8 1
1
⁄2 - 11
1
⁄2
15
⁄32
2 CHM-200 1
1
⁄4 3
1
⁄4
3
⁄4 2 - 11
1
⁄2
1
⁄2
2
1
⁄2 CHM-250 1
5
⁄8 3
7
⁄8 1 2
1
⁄2 - 8
9
⁄16
3 CHM-300 1
3
⁄4 4
5
⁄8 1 3 - 8
5
⁄8
3
1
⁄2 CHM-350 1
7
⁄8 5
1
⁄8 1
1
⁄8 3
1
⁄2 - 8
5
⁄8
4 CHM-400 1
7
⁄8 5
5
⁄8 1
1
⁄8 4 - 8
11
⁄16
5 CHM-500 2
1
⁄8 6
7
⁄8 1
1
⁄4 5 - 8
11
⁄16
6 CHM-600 2
1
⁄8 8
1
⁄8 1
1
⁄4 6 - 8
11
⁄16
Raintight Conduit Hubs
Threaded for Rigid Conduit & IMC
Type CHM
Type CHM-T
Dimensions in Inches
Insulated D
Throat Female
Trade Size Catalog Tapered Max. Box
(inches) Number A B C N.P.T. Wall Thk.
1
⁄2 CHM-50T
7
⁄8 1
1
⁄2
1
⁄2
1
⁄2 -14
7
⁄32
3
⁄4 CHM-75T 1 1
3
⁄4
1
⁄2
3
⁄4 - 14
9
⁄32
1 CHM-100T 1
1
⁄8 2
5
⁄8 1 - 11
1
⁄2
11
⁄32
1
1
⁄4 CHM-125T 1
1
⁄4 2
3
⁄8
5
⁄8 1
1
⁄4 - 11
1
⁄2
13
⁄32
1
1
⁄2 CHM-150T 1
1
⁄4 2
3
⁄4
5
⁄8 1
1
⁄2 - 11
1
⁄2
13
⁄32
2 CHM-200T 1
1
⁄4 3
1
⁄4
3
⁄4 2 - 11
1
⁄2
3
⁄8
2
1
⁄2 CHM-250T 1
5
⁄8 3
7
⁄8 1 2
1
⁄2 - 8
21
⁄32
3 CHM-300T 1
3
⁄4 4
5
⁄8 1 3 - 8
11
⁄16
3
1
⁄2 CHM-350T 1
7
⁄8 5
1
⁄8 1
1
⁄8 3
1
⁄2 - 8
3
⁄4
4 CHM-400T 1
7
⁄8 5
5
⁄8 1
1
⁄8 4 - 8
13
⁄16
5 CHM-500T 2
1
⁄8 6
7
⁄8 1
1
⁄4 5 - 8
13
⁄16
6 CHM-600T 2
1
⁄8 8
1
⁄8 1
1
⁄4 6 - 8
13
⁄16