1734-TB3S AB Allen-Bradley PLC 12 Number of Terminals Spring-clamp Terminal Base Assemblies 1734 Series Original brand n

1734-TB3S AB PLC 12 Number of Terminals Terminal Base Assemblies 1734 Series Original brand new

Terminal Base Assemblies and RTBs
A Terminal Base Assembly consists of a POINT I/O mounting base and a separate removable terminal block (RTB) that plugs into the mounting base. The base mounts directly on the DIN rail, either vertically or horizontally, and includes user-selectable mechanical keying to prevent incorrect I/O module placement. The RTB plugs into the mounting base and provides the terminal locations for field wiring. It also provides vertical access to wire and screw terminations. The I/O module plugs into the mounting base above the RTB. The RTB separates independently from the mounting base and I/O module to facilitate rapid installation and commissioning of the system. Spare or replacement RTBs can be ordered separate from the terminal base assembly.
Alternatively, a POINT I/O one-piece mounting base, which includes integrated terminal locations, is also available. The I/O module plugs into the one-piece mounting base.
Terminal Base Assemblies

Cat. No.	Description	Number of Terminals	Termination Type
1734-TB	Two-piece terminal base assembly. Includes a POINT I/O mounting base and separate RTB.	8	Screw-clamp
1734-TBS		8	Spring-clamp
1734-TB3		12	Screw-clamp
1734-TB3S		12	Spring-clamp
1734-TBCJC		Cold-junction compensation wiring base assembly	Screw-clamp
1734-TOP	One-piece POINT I/O mounting base with integrated terminal locations.	8	Screw-clamp
1734-TOPS		8	Spring-clamp
1734-TOP3		12	Screw-clamp
1734-TOP3S		12	Spring-clamp

 Use the cold-junction compensation wiring base assembly with the 1734-IT2I thermocouple input module.