Allen-Bradley 800T-U41 Timer Relay

The Allen‑Bradley 800T‑U41 is a 30 mm potentiometer accessory for the Rockwell Automation 800T pushbutton family. It provides a 50 kΩ resistive element, enabling a variable resistance input to control panels and machines. As a dedicated potentiometer unit, the U41 installs into compatible 30 mm operator assemblies to deliver an adjustable setting in analog control circuits, such as speed or position setpoints, or other process-variable adjustments in automation panels. This variant is commonly specified when a knob-adjustable control is required in panel layouts, allowing operators to dial in precise values during setup or tuning without replacing the entire pushbutton assembly. Key specifications include a 50 kΩ resistive element and a compact 30 mm form factor designed to fit standard Allen‑Bradley 800T operator cutouts. It is manufactured by Allen‑Bradley / Rockwell Automation and offered as part of the 800T series accessories. Typical applications include instrumentation panels, machine front-ends, and control stations where a manual, local adjustment of an analog signal is needed in rugged industrial environments. The 800T‑U41 is used with compatible 800T hardware to provide a reliable, compact adjustable input within a family of robust industrial controls.