Allen-Bradley 1771-WI IXE Thermocouple Wiring Arm

Allen-Bradley 1771-WI Thermocouple Wiring Arm is a field-wiring accessory for the 1771-IXE Thermocouple/Millivolt Input Module used in PLC-5 systems. This 18-terminal wiring arm provides the dedicated terminals to connect thermocouple or millivolt signals from the field into the IXE module, supporting multiple input channels through a single arm assembly. It is specifically described as a Thermocouple Wiring Arm for IXE and is listed under catalog number 1771-WI (with a Series A variant, 1771-WI/A). By attaching to the IXE module, the wiring arm facilitates the routing of analog inputs to the module’s input circuitry in accordance with Allen-Bradley installation references. In typical applications, this interface is employed wherever thermocouple or millivolt signals must be read by the 1771-IXE within a PLC-5 control scheme, helping organize and manage field wiring for temperature-related measurements and related low-level analog signals.