50 Ohm 25 Watt Rheostat for Precision Motor Control

A rheostat is also commonly referred to as a variable resistor or adjustable resistor. In industrial and motor control contexts, motorized rheostats like the 50 ohm 25 watt models from On Line Controls may also be called motorized variable resistors or motorized potentiometers, as they combine a variable resistance element with an integrated motor for automated control.

On Line Controls offers both 12 VDC and 115 VAC motor options with these rheostats. Various RPM configurations are available ranging from 1 to 15 RPM, allowing you to select the motor drive speed best suited to your application's requirements.

The slip clutch automatically protects the rheostat's end stops from damage during operation. When the rheostat reaches its mechanical limit, the slip clutch disengages to prevent the motor from forcing the wiper past the end stop, ensuring long-term reliability and preventing mechanical failure.

These motorized rheostats are engineered for industrial automation, process control, and equipment manufacturing. Specific applications include automated manufacturing processes, process parameter regulation and system optimization, and integration into machinery requiring precise variable resistance settings and motor speed control.

All products manufactured by On Line Controls come with 3-year warranty coverage, providing peace of mind for your investment in precision control solutions. All units are manufactured in Massachusetts to rigorous quality standards.

Delivery time depends on stock availability. For low volume or custom models, lead times can be up to 10–14 weeks. Contact On Line Controls directly to confirm current availability and lead times for your specific configuration.

Yes. On Line Controls offers repair and rebuilding services for all motorized rheostats that they manufacture. This service support, combined with the 3-year warranty and over 44 years of manufacturing experience since 1980, ensures long-term reliability and support for your investment.