CE Compliant

DC Motor Rheostat Speed Controllers for Variable Speed Control

Professional DC motor rheostat speed controllers designed for precise variable speed control in industrial applications. Our motorized potentiometers feature wirewound construction with slip clutch protection and manual adjustment capability when motor is off.

Our Range of Products

10 turn wirewound - 2 Watt - 100 ohm to 100K - 1 3/8″Dia x 4″ L

1 Million Turn Life Expectancy
Slip Clutch Protection System
Manual Adjustment Capability

Frequently Asked Questions

What voltage options are available for DC motor rheostats?

Our DC motor rheostats are available in 6, 12, or 24 VDC configurations to match your system requirements.

How long do these motorized potentiometers last?

Can I adjust the rheostat manually when the motor is off?

What RPM speeds are available?

What resistance values can I order?

Is repair service available for these units?

What protection features prevent damage?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Industrial Automation

Precise speed control for automated manufacturing processes and production line equipment

Precision Control Systems

Variable speed control for proportional control applications requiring accurate positioning

Analog Device Control

Speed regulation for analog-driven devices requiring smooth variable speed operation

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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120V Rheostat Motor Speed Controllers for Industrial Equipment

Industrial-grade 120V rheostat motor speed controllers engineered for precise automation of analog devices. Available in 25W, 50W, and 100W configurations with 115 VAC reversible motors, offering RPM ranges from 1-15 for reliable process control applications.

Why Industrial Automation Engineers Choose On Line Controls

44+ Years Manufacturing Excellence

Proven expertise since 1980 with over 35 years of industry experience in precision control systems manufacturing.

Global Support & Service

Worldwide shipping with comprehensive repair, rebuilding, and technical support services for maximum uptime.

USA Manufacturing Quality

All products manufactured in the USA with rigorous quality standards and direct worldwide sales support.

Get Expert Guidance for Your Variable Speed Control Needs

Connect with our technical experts to discuss your DC motor control requirements and receive a customized quote.

For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com

Contact Us Today

For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com