Allen-Bradley 1734-TBCJC Thermocouple Terminal Block

Allen-Bradley 1734-TBCJC Thermocouple Terminal Block is a two-piece POINT I/O wiring base assembly that provides built-in cold junction compensation for thermocouple inputs when paired with the 1734-IT2I thermocouple input module. The assembly comprises the mounting base (1734-MB) and a removable terminal block (1734-RTBCJC), delivering a compact base with screw-clamp terminations for secure field wiring. Specifically designed for use with the 1734-IT2I module, the 1734-TBCJC base achieves accurate thermocouple readings by compensating the cold junction at the terminal base rather than inside the module, helping reduce measurement error in thermocouple circuits. This wiring base is part of Allen-Bradley’s POINT I/O family, enabling straightforward wiring and maintenance since the RTBCJC block can be replaced independently of the IT2I module. Typical applications include process temperature monitoring and control, industrial HVAC and climate systems, and other temperature-regulated automation tasks where reliable, localized cold-junction compensation improves overall measurement stability.