Rockwell Automation 1746-XXXX SLC Removable Terminal Blocks Instruction Sheet User Manual
Removable terminal blocks, Types of removable terminal blocks
Removable Terminal Blocks
(Catalog Numbers 1746-RT25B, -RT25C,
-RT25G, -RT25R, and -RT32)
Installation Instructions
Types of Removable Terminal Blocks
The removable terminal blocks (RTBs) and modules are color-coded as follows:
If the color is
Then the RTB is for
red
AC inputs/outputs
blue
DC inputs/outputs
orange
relay outputs
green
specialty modules
black
These I/O wiring terminal blocks are not removable.
Important:
The 1746-RT32 RTB must be used exclusively with the 1746-NT4
thermocouple module. This RTB incorporates cold-junction
compensation (CJC) sensors which are required for proper
operation of the thermocouple module.
ATTENTION: When installing or removing the 1746-RT32
RTB, do not loosen or remove the CJC sensors from the screw
terminals. If the sensors are removed, refer to your thermocouple
module user manual for installation instructions.
CJC Sensors
(1746-RT32 only)