Motor Controllers & Servo Drives
Rugged brushless DC motor controllers and servo drives from 10 A to 200 A continuous, for defense vehicles, robotics, UAS and electric vehicles. Field-oriented control in compact form factors, with RS232, RS422, CAN bus and CANopen interfaces.
Our Motor Controllers

Micro Rayon Motor Controller
Ultra-compact design with advanced motor control capabilities for small form factors

TMC III
Compact and powerful motor control solution with evaluation and testing capabilities

Rayon Single Board Motor Controller
Compact, high-power motor controller for space-constrained environments

Rayon 70 Motor Controller
High-performance motor controller for demanding applications with precise control

Rayon 135 Motor Controller
Engineered for high-power applications with robust and scalable solution

EV Rider 200 Motor Controller
Engineered for electric mobility precision with robust and versatile solution
Compare motor controllers
Continuous and peak current, supply voltage, motor power, interfaces and size for every Redler servo drive, from the 10 A Micro Rayon to the 200 A EV Rider 200.
| Product | Continuous current | Peak current | Supply voltage | Max motor power | Interfaces | Size (mm) / weight |
|---|---|---|---|---|---|---|
| Micro Rayon Motor Controller | 10 ARMS | 20 ARMS | 12–28 VDC | 450 W | CANopen, RS-232/422 | 30.4 × 25 × 9.6 mm, 10 g |
| TMC III | 12.5 ARMS | 25 ARMS | 12–28 VDC | 355 W | CAN bus, optional CANopen, RS-232/422 | 53 × 33 × 11 mm |
| Rayon Single Board Motor Controller | 16 ARMS | 40 ARMS | 12–58 VDC | 800 W | CAN bus, optional CANopen, RS-232/422 | 97 × 70 × 17 mm, 330 g |
| Rayon 70 Motor Controller | 70 ARMS | 120 ARMS | 12–58 VDC | 3500 W | CAN bus, optional CANopen, RS-232/422 | 67 × 120 × 34 mm, 370 g |
| Rayon 135 Motor Controller | 135 ARMS | 220 ARMS | 12–58 VDC (optional to 96 VDC) | 6700 W | CAN bus, optional CANopen, RS-232/422 | 195 × 93 × 45.5 mm, 850 g |
| EV Rider 200 Motor Controller | 200 ARMS | 350 ARMS | 24–96 VDC | 10 kW | CAN bus, CANopen, J1939 | 255 × 185 × 50 mm, 2300 g |
Values as listed on each product page. ARMS = amperes RMS. Size is width × length × height as given in the product data. Optional interfaces are marked. — means not stated in the product data.
Related guides: UGV electrical architecture
Featured Technologies
High Power and Versatility
Our motor controllers support a wide range of power requirements, from compact 450W solutions to high-power 20kW controllers, offering versatility for various applications.
Advanced Precision Control
With advanced digital control loops, our controllers offer superior precision for position, speed, and torque control, ensuring optimal performance in demanding environments.
Communication & Feedback
Supporting RS232, RS422, and CAN bus communication protocols, along with various feedback mechanisms, our controllers ensure seamless integration into complex systems.
Military-Grade Durability
Designed to withstand extreme conditions with operating temperatures from −40 °C to +85 °C (optionally to −55 °C), our controllers deliver reliable performance in harsh environments.
Compact Design
Our motor controllers feature space-efficient designs without compromising on performance, making them ideal for applications with strict size constraints.
Flexible Integration
With comprehensive support for various feedback mechanisms and communication protocols, our controllers easily integrate into existing or new systems across various industries.
Three Product Paths
Choose the right motor controller based on your application requirements
Compact Solutions
Perfect for space-constrained applications requiring precision control in a small footprint.
- Micro Rayon
- TMC III
Mid-Range Power
Balancing power and precision for versatile industrial and commercial applications.
- Single Board
- Rayon 70
High-Power Systems
Maximum power and performance for demanding, large-scale applications.
- Rayon 135
- EV 200
- Custom Solutions
Frequently Asked Questions
What makes Redler motor controllers different from competitors?
Our motor controllers offer superior power density, advanced Field-Oriented Control (FOC) algorithms, and military-grade reliability. They operate across extreme temperature ranges (-40°C to +85°C) and support multiple feedback mechanisms and communication protocols in compact form factors.
Which motor controller is right for my application?
Selection depends on your power requirements, voltage range, and size constraints. Compact solutions like Micro Rayon (450W) suit UAVs and medical devices. Mid-range controllers like Rayon 70 (3.5kW) work for industrial automation. High-power systems like EV 200 (20kW) are ideal for electric vehicles and heavy machinery.
What communication protocols are supported?
All our controllers support RS232 and RS422 interfaces. Most models also feature CANopen for industrial networks. The EV 200 includes CAN bus (J1939) optimized for electric vehicle applications. This flexibility ensures seamless integration into existing systems.
Can these controllers work with brushless DC motors?
Yes, all Redler motor controllers are designed for brushless DC (BLDC) servo motors using advanced FOC algorithms. They support Hall sensors, incremental encoders, SIN/COS encoders, and SSI encoders for precise position, speed, and torque control.
Are these controllers suitable for defense applications?
Absolutely. Our controllers are engineered for military-grade durability with extended temperature ranges, rugged construction, and compliance with defense standards. They're used in autonomous vehicles, precision weapons systems, UAVs, and other mission-critical applications.
Do you offer custom motor controller solutions?
Yes, we provide custom solutions tailored to specific voltage requirements, current capacities, form factors, and environmental conditions. Our engineering team works closely with customers to develop controllers that meet unique application needs.
Need Help Choosing the Right Controller?
Our team of experts is ready to discuss how our motor control solutions can meet your specific application requirements.