25 watt with DC motor
50 watt with 115 VAC motor
Motorized Rheostats
25 watt with 115 VAC motor
100 watt with 115 VAC motor
50 watt with DC motor
CE Compliant certified

CE Compliant

Rheostats for Sale | Variable Resistors & Power Controls

Professional motorized rheostats and variable resistors for industrial automation and process control. Our precision-engineered rheostats combine high-wattage capability with motorized control, featuring slip clutch protection and linear taper design for reliable operation in demanding applications.

Our Range of Products

25 watt with DC motor

25 watt with DC motor

  • 25 Watt Power Rating
  • Panel Mount Configuration
  • Precision DC Motor Control
50 watt with 115 VAC motor

50 watt with 115 VAC motor

  • 50 Watt High Power Rating
  • International CE Compliance
  • Worldwide Shipping Available
Motorized Rheostats

Motorized Rheostats

  • Multiple Wattage Options Available
  • AC/DC Motor Configurations
  • Variable RPM Speed Control
25 watt with 115 VAC motor

25 watt with 115 VAC motor

  • Small Efficient Package Design
  • 115 VAC Motor Integration
  • Linear Taper Winding
100 watt with 115 VAC motor

100 watt with 115 VAC motor

  • High Precision Proportional Control
  • 115 VAC Reversible Motor Drive
  • Slip Clutch Protection System
50 watt with DC motor

50 watt with DC motor

  • Compact Motor-Rheostat Package
  • 12 VDC Motor Operation
  • Long Period Reliable Operation

Frequently Asked Questions

What wattage options are available for motorized rheostats?

We offer 25, 50, and 100 watt motorized rheostats to meet various power requirements for different industrial applications.

What motor types are compatible with these rheostats?

Do the rheostats include slip clutch protection?

What warranty coverage is provided with these products?

Are these rheostats manufactured in the USA?

Can I get custom specifications for unique applications?

What RPM speeds are available for the motors?

Are the rheostats certified for international use?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Industrial Automation

Industrial Automation

Precise variable resistance control for automated systems and process control equipment.

Process Control

Process Control

High-precision resistance adjustment for critical process control applications.

Equipment Manufacturing

Equipment Manufacturing

Motorized rheostats integrated into equipment requiring convenient variable resistance settings.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Industrial Automation Engineers Choose On Line Controls, Inc.

44+ Years Manufacturing Excellence

Proven track record since 1980 delivering precision control solutions with industry-leading reliability and durability.

Made in USA Quality

All products manufactured in Massachusetts with 3-year warranty and comprehensive technical support worldwide.

Expert Engineering Support

Direct access to our experienced team with over 35 years of industry expertise for custom specifications and technical guidance.

Get Expert Guidance on Motorized Rheostat Selection

Connect with our engineering team for personalized recommendations and custom specifications for your application requirements.

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