Cut Sheet

Effective September, 2005
Copyright 2005
PAGE 36
800-621-1506
www.appletonelec.com
I- 36
I
Clamps and Clamp Backs for RMC, IMC and EMT
Malleable Iron One-Hole Clamps and Clamp Backs
and Steel One-Hole Clamps.
Applications
•
Used to support runs of RMC, IMC
and EMT.
NOTE: 2-1/2” thru 4” sizes also suitable
for EMT.
Features
•
Malleable iron clamps and clamp
backs are exceptionally rugged and
strong.
•
Steel clamps offer economy and
have integrally formed gussets for ex-
cellent strength.
Standard Material
•
Malleable iron or steel.
Standard Finish
•
Malleable iron clamps and clamp
backs— hot dipped galvanized.
•
Steel One-hole clamps—zinc elec-
troplate.
Size Range
•
Malleable iron clamps and clamp
backs—1/2” thru 6”.
•
Steel one-hole clamp—1/4” thru 4”.
Compliances
•
UL listing not applicable
•
CSA Standard C22.2 No. 18 applies
to malleable iron clamps and clamp
backs thru 6”.
Catalog Size Dimensions (Inches) Recommended
Number (In.) A B C Bolt Dia. (In.)
One-Hole Clamps—Malleable Iron
CL-50MN 1/2 1 15/16 5/8 1/4
CL-75MN 3/4 1-3/16 1-7/32 3/4 1/4
CL-100MN 1 1-3/8 1-1/2 7/8 1/4
CL-125MN 1-1/4 1-5/8 1-15/16 7/8 3/8
CL-150MN 1-1/2 1-13/16 2-1/8 15/16 3/8
CL-200MN 2 2-5/6 2-5/8 1-1/16 1/2
CL-250MN 2-1/2 2-9/16 3 1-5/16 1/2
CL-300MN 3 3-3/16 3-13/16 1-1/2 1/2
CL-350MN 3-1/2 3-3/8 4-7/16 1-11/16 5/8
CL-400MN 4 3-3/4 5 1-15/16 5/8
CL-500MN 5 4-3/4 6-1/2 2-1/2 5/8
CL-600MN 6 5-5/8 7-1/2 2-3/4 1
Clamp Backs—Malleable Iron
CLB-50MN 1/2 2-7/16 7/16 1-1/16 —
CLB-75MN 3/4 2-1/2 1/2 1-1/8 —
CLB-100MN 1 3-3/16 9/16 1-5/16 —
CLB-125MN 1-1/4 3-11/16 3/4 1-7/16 —
CLB-150MN 1-1/2 3-15/16 13/16 1-9/16 —
CLB-200MN 2 5-1/8 3/4 2 —
CLB-250MN 2-1/2 5-3/4 3/4 2-1/2 —
CLB-300MN 3 7-1/8 13/16 2-13/16 —
CLB-350MN 3-1/2 8 1 3-1/4 —
CLB-400MN 4 8-3/4 1 3-7/16 —
CLB-500MN 5 10-1/16 1-1/4 3-3/4 —
CLB-600MN 6 11-13/16 1-1/2 3-15/16 —
One-Hole Clamps—Steel
CL-25 1/4 5/8 15/32 19/32 1/4
CL-38 3/8 13/16 5/8 11/16 9/32
CL-50 1/2 1 3/4 15/16 9/32
CL-75 3/4 1-5/32 3/4 1-1/8 9/32
CL-100 1 1-11/32 7/8 1-7/16 11/32
CL-125 1-1/4 1-11/16 1 1-25/32 13/32
CL-150 1-1/2 1-15/16 1-1/8 2 13/32
CL-200 2 2-11/32 1-3/16 2-17/32 15/32
CL-250 2-1/2 2-13/16 1-1/4 3-1/32 9/16
CL-300 3 3-5/16 1-1/4 3-21/32 9/16
CL-350 3-1/2 3-7/16 1-1/2 4-5/32 11/16
CL-400 4 3-25/32 1-1/2 4-21/32 11/16
Malleable
One Hole
Back
B
A
C
Steel
Clamp
Malleable
Clamp