Allen-Bradley 800T-U49 Potentiometer

Allen-Bradley 800T-U49 Potentiometer is a 30 mm, 100 kΩ linear-taper potentiometer designed to be used as the adjustable resistive element in the 800T series push-button operator units. It provides a fixed resistive value of 100 kΩ (0.1 MΩ) with a linear taper, enabling predictable resistance changes as the control knob is turned. Rated for up to 300 VAC and 2.25 watts, this potentiometer supports operation in industrial control circuits and panel-mounted assemblies where rugged performance is required. The 800T-U49 designation corresponds to the 100 kΩ, 2.25 W, linear-taper configuration, with replacement part number 24752-221-21 commonly used in service and repair. As a replacement unit, it is intended for integration with Allen-Bradley 800T push-button devices, providing stable, monotonic resistance variation to influence control signals. Typical applications include manual adjustment of motor speed, feed rate, or other control parameters in manufacturing and packaging equipment that rely on the 800T control interface. The combination of the 30 mm form factor and linear taper supports straightforward calibration within 800T operator assemblies, enabling repeatable settings and reliable long-term operation.