Allen-Bradley 1756-IA32 - Choose Extended-Depth Housing

120 Rockwell Automation Publication 1756-UM058G-EN-P - November 2012
Chapter 6 Install ControlLogix I/O Modules
Choose Extended-depth
Housing
There are two housing options you must consider when wiring your
ControlLogix digital I/O module: standard-depth or extended-depth.
When you order an RTB for your I/O module, you receive standard-depth
housing. If your application uses heavy gauge wiring, you can order extended-
depth housing. Extended-depth housing does not come with an RTB.
IMPORTANT
The housings shown are used with a spring clamp RTB, but the capacity for
each remains the same regardless of RTB type.
Cat. No. RTB Type Wire Capacity Number of Wires
1756-TBNH NEMA clamp Standard-depth
336 mm
2
(0.52 in.
2
)
36 - 18 AWG wires
23 - 14 AWG wires
1756-TBSH Spring clamp (20-position)
1756-TBCH Cage clamp
1756-TBS6H Spring clamp (36-position)
1756-TBE Any RTB that uses heavy gauge
wiring
Extended-depth
628 mm
2
(0.97 in.
2
)
40 - 14 AWG wires
Standard-depth Housing
Extended-depth Housing
30484-M