Commander C
General Purpose AC Drive
0.33 hp to 200 hp (0.25 kW - 132 kW)
115 V | 208 -240 V | 380 - 480 V | 575 V | 690 V 
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Flexibility For Countless Applications

Commander C combines efficiency and reliability to offer optimum performance for a wide range of applications. With many essential features built in, including PLC capabilities for simple programming needs, dual STO safety function, braking transistor and PID control, it provides a compact solution for any installation.

Excellence in Motor Control



The Ultimate All-In-One Drive  

  Adaptable to your application
Whether you have a single application or a variety of different ones, Commander C fits right in. With all essential features built-in, it's ready to go right out of the box.
  Integrated functional safety
The Dual Safe Torque Off (STO) feature, certified to the highest level of machine safety, SIL3/PLe, and compliant to EN/IEC 61800-5-2, prevents the motor from moving unexpectedly, protecting both equipment and operators.
  On-board PLC
The on-board PLC allows for add-on programmable functions, more elaborate I/O features and special software that enables greater machine control. It also eliminates the need for an external controller, saving both on cost and space.
  Compact design
Commander C is one of the most compact drives within its category, taking little space in the cabinet and minimizing installation cost.
  Super quick start-up
To get started you only need to set-up 4 parameters (motor rated current, RPM, voltage and power) and for your convenience we've listed them on the front cover of the drive.
  Flexible connectivity
The plug in communication modules enable integration with the most common industrial fieldbuses.
  Worldwide availability and outstanding service
Need expert advice and support? Wherever you are in the world we've got you covered via our sales offices or Control Techniques approved distributors.
  Free 5 year warranty*
Our Commander C series is built to cope with harsh environments.
To share our confidence in the reliability of Commander C we offer an extended 5 year warranty, at no extra cost. 
It is a testament to our exceptional track record for reliability, giving you total peace of mind that your investment is protected and your site will continue to run uninterrupted.
*Warranty terms and conditions apply.


Whatever your application, Commander C is the perfect solution across industries

The Commander C series are simple and compact AC motor speed controllers that meet advanced requirements in a wide range of applications. Their small footprint – among the smallest in their class – makes them ideal for machine builders and OEMs, where size really matters.

Find your local distributor or request more information

motor control of pumps ventilators and compressors with general purpose variable speed drives  Pumping, ventilating & compressing

  • Improved energy efficiency during periods of low demand
  • On board PLC & PID functionalities make advanced control easy and efficient without the need of an external controller
  • Skip Frequencies allow users to easily avoid equipment resonant frequencies, reducing high vibration levels
  • Supply Loss Ride Through will keep the drive up and running through most power outages

general purpose drives for accurate remote speed control of conveyor belts   Conveying

  • Accurate remote speed control with fieldbus communications
  • S-ramp acceleration / deceleration profiling provides smooth speed transitions minimizing machine jerk
  • Overload capacity up to 180% to add stability
  • Avoids early wear and tear of the equipment
Control Techniques general purpose drives for lifting hoisting and winching  Lifting, hoisting & winching
  • Adjustable mechanical brake sequencing with torque proving function – no need for an external controller
  • Embedded PLC functionality can manage local I/O reducing the need for an external controller
Access control variable speed drives for motion control  Access control
  • Smooth motion with enhanced open loop control
  • Small physical size allows the drive to be mounted easily in smaller control cabinets
  • Highly reliable in harsh environments, providing long lasting service
general purpose drives for stable motor control for processing mixers kneaders agitators extruders  Processing (mixers, kneaders, crushers, agitators, centrifuges, extruders)
  • Ease of integration to external PLC or other management systems through powerful networking options
  • Conformal coating for enhanced environmental protection
  • Overload capacity up to 180%
  • Highly stable motor control



  Connect - intuitive commissioning software
Connect is our latest drive configuration tool for commissioning, optimising and monitoring drive/system performance.
machine-control-studio-icon  Machine Control Studio - programming tool
Control Techniques' Machine Control Studio provides a flexible and intuitive environment for programming new automation and motion control features.


Product and Training Videos Series

Motor Control

C200, C300: Induction Motors 
C300PM: Permanent Magnet Motors

Control Mode

  C200 C300 C300 PM 
Open loop vector or V / Hz induction motor control  ✓    ✓  
Open loop Rotor Flux Control for induction motors (RFC-A)  ✓   ✓  
Sensorless permanent magnet motor control       ✓


Ambient Operating Temperature Size 1 - 4: -20°C to 40°C (-4°F to 104°F) @ 3 kHz switching freq. | Operation to 60°C (140°F) with de-rating
Size 5 - 9: -20°C to 40°C (-4°F to 104°F) @ 3 kHz switching freq. | Operation to 55°C (131°F) with de-rating
Cooling Method Forced convection
Humidity 95 % non-condensing at 40 °C (104 °F)

Storage Temperature

Size 1 - 4: -40°C to 60°C (-40°F to 140°F) — 24 months Max.
Size 5 - 9: -40°C to 55°C (-40°F to 131°F) — 24 months Max.
Altitude De-rate the continuous output current by 1% for every 100 m (328 ft) above 1000 m (3,280 ft) to a maximum of 3000 m (9,840 ft)
Vibration Tested in accordance with IEC 60068-2-64 and IEC 60068-2-6
Mechanical Shock Tested in accordance with IEC 60068-2-27 and IEC 60068-2-29
Enclosure Rating IP20, NEMA 1 conduit kits available
Electromagnetic Capability IEC/ EN 61800-3 Immunity and Emissions
EN 61000-6-2: Immunity for industrial environments
EN 61000-6-4: Emissions for industrial environmentsM/br> EN 61000-3-2: Harmonic current emissions
An EMC data sheet is available on request
RoHS Complies with the Restriction of Hazardous Substances Directive (2011/65/EU)

AC supply requirements


100 V to 120 V ±10 %
200 V to 240 V ±10 %
380 V to 480 V ±10 %
500 V to 575 V ±10 %
500 V to 690 V ±10 %

Phase 1Ø and 3Ø (Model dependent)
Maximum Supply Imbalance 2% negative phase sequence, 3% voltage imbalance between phases
Input Frequency  45 to 66 Hz
Input Displacement Power Factor 0.97


Switching Frequency Size 1 - 4: 0.667, 1, 2, 3, 4, 6, 8 12 & 16 kHz
Size 5 - 9: 2, 3, 4, 6, 8 12 & 16 kHz
Output Frequency Range  0 to 550 Hz
Frequency Accuracy ±0.02% of full scale
Frequency Resolution  0.01 Hz
Analog Input Resolution  Voltage mode: 11 bits (unipolar) Current mode: 11 bits
Braking  Dynamic braking transistor included, requires external resistor


DC Bus Undervoltage Trip 100 V models: 175 Vdc
200 V models: 175 Vdc
400 V models: 330 Vdc
575 V models: 435 Vdc
690 V models: 435 Vdc
DC Bus Overvoltage Trip  Frame sizes 1 - 4:
100 V models: 510 Vdc
200 V models: 510 Vdc
400V models: 870 Vdc
Frame size 5 - 9:
200V models: 415 Vdc
400 V models: 830 Vdc
575 V models: 990 Vdc
690 V models: 1190 Vdc
Drive Overload Trip Programmable: Default settings: 180% for 3s, 150% for 60s
Instantaneous Overcurrent Trip  220% of rated motor current
Phase Loss Trip  DC bus ripple threshold exceeded
Over-temperature Trip  Drive heatsink temperature exceeds 95°C (203°F)
Short Circuit Trip  Protects against output phase-to-phase fault
Ground Fault Trip  Protects against output phase-to-ground fault
Motor Thermal Trip  Electronically protects the motor from overheating due to loading conditions

Approval & listings

UL, cUL UL file NMMS/8: E171230
CE  CE approval
EU  These products comply with the Restriction of Hazardous Substances Directive (2011/65/EU), the Low Voltage Directive (2014/35/EU) and the Electromagnetic Compatibility Directive, (2014/30/EU).
RCM  RCM Registered supplier No. 12003815281
ISO  Manufacturing facilities comply with ISO 9001:2015 and ISO 14001

C300 models only: The Safe Torque Off (STO) function may be used as a safety component of a machine.

Type examination certificates by TÜV Rheinland:
Frame sizes 1 - 4: No. 01/205/5383.03/18
Frame sizes 5 - 9: No. 01/205/5387.02/18

Functional safety parameters:
EN ISO 13849-1 - Cat 4, PLe
EN61800-5-2/EN62061/IEC 61508 - SIL 3

UL functional safety approval: FSPC E171230



Remote-Keypad-RTC Remote Keypad RTC
The keypad is remote mountable, allowing flexible mounting on the outside of a panel (meets IP54/NEMA 12). Three line plain text, multi-language LCD keypad for rapid set-up and helpful diagnostics. Battery operated real-time clock allows accurate time stamping of events, aiding diagnostics. 
Remote Keypad for Variable Speed Drives
Remote Keypad
Remote mountable, intuitive plain text, multilingual LCD keypad for rapid set-up and superior diagnostics (using the AI-485 adaptor along with a comms lead). Rapid and secure panel fit with 1 x 32mm hole rated to IP66 (NEMA 4).             
Operator Interface (HMI)
The MCh040 & MCh070 panels and MChMobile Software have been designed for the easy development of HMI applications including factory and building automation.             

System integration modules - communications

SI-BACnet IP provides seamless integration into both new and existing building automation systems facilitating the exchange of data between different building automation devices and the drive.

SI-Profibus Communication System Integration Modules

SI-PROFIBUS interface module enables follower connectivity. It is possible to use multiple SI-PROFIBUS modules or a combination of SI-PROFIBUS and other option module types to add additional functionality such as extended I/O, gateway functionality or additional PLC features.             
SI-POWERLINK serves applications ranging from simple open-loop systems through to those demanding precise motion control. 

SI-Devicenet Communications System Integration Module

SI-DeviceNet enables follower connectivity. It is possible to use multiple SI-DeviceNet modules to provide additional functionality.  

SI-CANopen Communication System Integration Module

SI-CANopen interface module supports various profiles, offering optimum flexibility.  

SI-Ethernet Communication System Integration Module

SI-Ethernet can be used to provide high speed drive access, global connectivity and integration with IT network technologies.   

SI-EtherCAT Communications System Integration Module

SI-EtherCAT allows Commander C general purpose drive to connect and interface with EtherCAT networks. 
SI-Profinet Communications System Integration Module  SI-PROFINET
SI-PROFINET allows Commander C to communicate and interface with PROFINET PLCs and networks.  
SI-INTERBUS for easy integration to the Interbus fieldbus in applications that use or drives

System integration modules - additional I/O

SI-IO System Integration Module

Extended I/O interface module to increase the number of I/O points on a drive. Provides additional: 4 x Digital I/O, 3 x Analog inputs (default)/Digital inputs, 1 x Analog output (default)/Digital input, 2 x Relays.             

Optional accessories

AI-Backup-Adaptor AI-Back-up Adaptor
Port adaptor for SD card parameter cloning, and an input for 24 V back-up.             
AI-Smart-Adaptor AI-Smart Adaptor
Has a built-in memory for parameter cloning and an input for 24 V back-up.             
AI-485-Adaptor AI-485 Adaptor
Adaptor that allows the drive to communicate via RS485.             
AI-485-Adaptor AI-485 24 V Adaptor
Adaptor with 24 V input.              
RS485 USB Communication Cable RS485 Cable
The USB comms cable allows the drive to connect to a PC for use with Commander's PC tools.             


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