CE Compliant certified

CE Compliant

Rotary Rheostats with Adjustable Resistance for Industrial Control

Rotary rheostats with adjustable resistance provide precise proportional control for industrial automation applications. These motorized units combine rheostats and potentiometers with AC/DC motors to deliver reliable variable resistance control with slip clutch protection and multiple wattage options for high-performance analog device automation.

Motorized Rheostats
25 watt with 115 VAC motor
100 watt with 115 VAC motor
50 watt with DC motor
25 watt with DC motor
50 watt with 115 VAC motor
DC Motorized Potentiometer
AC Motorized Potentiometers
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1.5″ x 5″ L
10 turn wirewound - 5 Watt - 100 ohm to 100K Normal 1K - 2″ Square x 6 3/4″ L
10 turn wirewound - 2 Watt - 1K/1K, 2K/2K, 3K/3K, 5K/5K, 5K/10K, 10K/10K - 1.5″ x 6″ L
Single turn wirewound - 0.5 Watt - 10 ohm to 20K - 1 3/8″ Dia x 3.76″L Dual 4.25″L
Single turn conductive plastic - 1 Watt - 500 ohm to 20K Standard - 1.5″ x 4 3/4″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1.5″ x 6 1/2″ L
10 turn wirewound - 5 Watt - 10 ohm to 100K - 2″ square x 8.5″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1.5″ x 5 1/4″ L
10 turn wirewound - 2 Watt - 5K/5K/5K normal. Others available. - 1 1/4″Dia x 7″ L
Single turn conductive plastic - 2 Watt - 500 ohm to 100K - 2″ square x 4 1/4″ L
Single turn conductive plastic - 1 Watt - 500 ohm to 20K Standard - 1.5″ x 5″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1 1/4″Dia x 4 3/4″ L
Single turn wirewound - 0.5 Watt - 1K/1K, 2K/2K, 3K/3K, 5K/5K, 5K/10K, 10K/10K - 1.5″ x 5.25″ L
Single turn Conductive plastic - 1 Watt - 500 ohm to 100K - 1 1/4″Dia X 5.4″L
Single turn wirewound - 0.5 Watt - 10 ohm to 20K - 2″ x 5.25″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1 1/4″Dia x 6″ L
Single turn Conductive plastic - 1 Watt - 50 ohm to 20K Standard - 1 3/8″ Dia x 3.76″L 5.5″L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 7/8″ Dia x 4 3/4″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1.5″ x 6 3/4″ L
10 turn wirewound - 2 Watt - 1K/1K, 2K/2K, 5K/5K, 10K/10K, 2K/3K, 5K/10K - 1 1/4″Dia x 5 3/4″ L
Single turn wirewound - 0.5 Watt - 10 ohm to 20K - 1.5″ x 5″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - 1 3/8″Dia x 4″ L
Single turn conductive plastic - 2 Watt - 1K to 100K - 2″ square x 4″ L
3 turn hybrid - 1 Watt - 1K to 100K - 7/8″Dia x 4 3/4″ L
10 turn wirewound - 2 Watt - 100 ohm to 100K - *

Our Range of Products
Motorized Rheostats

Motorized Rheostats

  • High precision proportional control
  • Slip clutch protection
  • Multiple wattage options available
25 watt with 115 VAC motor

25 watt with 115 VAC motor

  • 25 watt 115 VAC motor
  • Small efficient package design
  • Made in USA quality
100 watt with 115 VAC motor

100 watt with 115 VAC motor

  • 115 VAC reversible motor
  • 100 watt high power rating
  • CE compliant for international use
50 watt with DC motor

50 watt with DC motor

  • 50 watt DC motor design
  • Compact efficient package
  • Slip clutch rheostat protection
25 watt with DC motor

25 watt with DC motor

  • 25 watt DC motor configuration
  • High precision proportional control
  • Reliable long-term operation
50 watt with 115 VAC motor

50 watt with 115 VAC motor

  • 50 watt AC motor power
  • CE compliant certification
  • Worldwide shipping available

Showing 1 to 6 of 33 results

Frequently Asked Questions

What is a rotary rheostat?

A rotary rheostat is a variable resistance device that provides precise proportional control for industrial automation applications. These motorized units combine rheostats and potentiometers with AC or DC motors to deliver reliable variable resistance control with slip clutch protection and multiple wattage options for high-performance analog device automation.

What is the difference between a rheostat and a thermostat?

What motor voltage options are available for motorized rotary rheostats?

How long do conductive plastic element rheostats last compared to wirewound types?

Can these rotary rheostats be integrated with PLC control systems?

What repair services are available for older motorized rheostat units?

What makes dual gang motorized rheostats useful for feedback systems?

What technical support is included with motorized rotary rheostats?

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

Motorized rheostats provide precise variable resistance control for automated analog devices in manufacturing processes.

Process Control

Process Control

High precision proportional controls enable accurate adjustment of process variables in chemical and manufacturing operations.

Equipment Control Systems

Equipment Control Systems

Convenient variable resistance settings for equipment requiring remote or automated control capabilities.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Motorized rheostats and electric control solutions provide high-precision proportional control for automating analog-driven devices with high wattage requirements. These panel-mount units combine rheostats and motors in compact, efficient packages designed for smooth, reliable operation in industrial automation and process control applications.

Why Industrial Automation Engineers Choose On Line Controls, Inc.

Proven Reliability & Quality

Over 44 years of manufacturing experience with products designed for smooth, long-term operation and industry-leading durability standards.

Made in USA Excellence

All products manufactured in Shrewsbury, Massachusetts with rigorous quality control and comprehensive 3-year warranty coverage.

Expert Technical Support

Dedicated engineering team with 35+ years experience providing unlimited phone support, custom configurations, and repair services.

Get Expert Guidance on Rotary Rheostat Selection

Connect with our engineering team for custom specifications, technical support, and pricing on motorized rheostats and potentiometers.

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