CE Compliant certified

CE Compliant

Made in USA certified

Made in USA

Motorized Rheostat for High-Power Industrial Applications

Motorized Rheostats for high-power industrial applications combine precision wirewound resistance elements with integrated AC or DC motors in compact, panel-mount packages. Available in 25W, 50W, and 100W ratings with variable RPM options (1-15 RPM), these automated control devices feature slip clutch protection and linear taper windings. Engineered for smooth, reliable operation in process control and industrial automation requiring precise, automated resistance adjustments over extended periods.

100 watt with 115 VAC motor
Motorized Rheostats
50 watt with 115 VAC motor
25 watt with 115 VAC motor
50 watt with DC motor
25 watt with DC motor

Our Range of Products
100 watt with 115 VAC motor

100 watt with 115 VAC motor

  • 100W High-Power Wirewound Element
  • 115 VAC Reversible Motor
  • 1-15 RPM Variable Speed Options
Motorized Rheostats

Motorized Rheostats

  • AC/DC Motor Flexibility
  • Slip Clutch Protection
  • 25-100W Power Range
50 watt with 115 VAC motor

50 watt with 115 VAC motor

  • 50W Wirewound Construction
  • CE Compliant Worldwide Shipping
  • Linear Taper ±10% Tolerance
25 watt with 115 VAC motor

25 watt with 115 VAC motor

  • 25W Compact Package
  • 3-Year Parts & Labor Warranty
  • Made in USA Quality
50 watt with DC motor

50 watt with DC motor

  • 12 VDC Motor Operation
  • Panel Mount Design
  • 1-2 RPM Precision Control
25 watt with DC motor

25 watt with DC motor

  • DC Motor Low-Speed Control
  • Repair & Rebuild Service
  • Smooth Reliable Operation

Frequently Asked Questions

What are the different types of rheostats?

Rheostats include wirewound, carbon composition, and motorized types. Motorized rheostats automate resistance changes using integrated AC or DC motors for industrial control applications.

What wattage ratings are available for motorized rheostats?

Can I customize the resistance value for my application?

What is the difference between AC and DC motor options?

How does the slip clutch protection work?

What is the typical lifespan of these motorized rheostats?

Are motorized rheostats suitable for international installations?

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

Automated resistance control for high-wattage equipment requiring precise, repeatable adjustments without manual intervention.

Process Control

Process Control

Variable resistance settings for analog-driven process control systems requiring continuous, smooth resistance adjustments.

Equipment Manufacturing

Equipment Manufacturing

Integrated into OEM equipment designs requiring convenient, automated variable resistance for end-user applications.

Laboratory & Testing

Laboratory & Testing

Precision resistance control for test equipment and laboratory applications requiring exact, repeatable 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 Expertise

Over four decades designing and manufacturing precision control systems in the USA. Our motorized rheostats are engineered for decades of reliable operation with minimal maintenance requirements.

Slip Clutch Protection System

Integrated slip clutch mechanism protects rheostat end stops from mechanical damage, extending product lifespan to 10-20+ years while ensuring consistent, hysteresis-free performance.

Customizable Specifications

Flexible configuration options for resistance values, motor types (AC/DC), RPM speeds (1-15), and wattage ratings. Technical support team provides expert guidance for application-specific requirements.

Request a Quote for Motorized Rheostats - Expert Support Included

Our technical team will respond within 24 hours to discuss your resistance requirements, motor specifications, and application needs for high-power control systems.

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