CE Compliant certified

CE Compliant

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.

50 watt with 115 VAC motor
25 watt with 115 VAC motor
100 watt with 115 VAC motor

Our Range of Products

50 watt with 115 VAC motor

50 watt with 115 VAC motor

  • 50W Mid-Range Power
  • Linear Taper Winding
  • CE Compliant Certified
25 watt with 115 VAC motor

25 watt with 115 VAC motor

  • 25W Compact Design
  • High Precision Controls
  • Panel Mount Installation
100 watt with 115 VAC motor

100 watt with 115 VAC motor

  • 100W High Power Rating
  • 1-15 RPM Variable Speed
  • Slip Clutch Protection

Frequently Asked Questions

How to control the speed of a 120v AC motor?

Controlling the speed of a 120V AC motor in industrial applications requires a compatible speed controller, such as the 120V rheostat motor speed controllers featured here. These units use variable resistance technology with 115 VAC reversible motors to deliver precise speed control in the 1-15 RPM range. Available in 25W, 50W, and 100W configurations, they allow operators to fine-tune motor speed for automation and process control tasks. For seamless integration into automated environments, select models also accept 0-10 volt inputs for PLC connectivity. It is important to note that standard AC induction motors are not compatible with rheostat-based control — always verify motor compatibility with a technical specialist before selecting a controller.

Does a rheostat control voltage or current?

Can you put a rheostat on any electric motor?

What power ratings are available for these 120V rheostat controllers?

What RPM range do these rheostat motor speed controllers support?

Are these 120V rheostat controllers CE compliant for international use?

Can these controllers integrate with existing PLC automation systems?

What warranty and technical support is included with these motor speed controllers?

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Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Industrial Automation

Industrial Automation

Precise motor control for automated manufacturing processes requiring variable speed operation.

Process Control

Process Control

Variable resistance settings for analog driven devices in chemical and manufacturing processes.

Equipment Manufacturing

Equipment Manufacturing

Integration into industrial equipment requiring convenient variable resistance motor control systems.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Industrial Engineers Choose On Line Controls

44+ Years Manufacturing Excellence

Proven expertise since 1980 in precision control systems with unmatched reliability and quality standards for industrial applications.

USA-Made Quality & 3-Year Warranty

All products manufactured in the USA with comprehensive 3-year parts and labor warranty plus unlimited phone support for peace of mind.

Worldwide Support & Service

Global shipping via UPS, DHL, FEDEX with technical support, repair services, and rebuilding capabilities for long-term equipment reliability.

Get Expert Guidance on Motor Speed Controller Selection

Connect with our technical team for personalized recommendations and competitive pricing on industrial rheostat controllers.

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.