0.25kW - 132kW (0.33 hp to 200hp)
100 V | 200 V | 400 V
Commander variable speed drives have established the standard of excellence in motor control since 1983 when Control Techniques launched the first world commercial vector drive. Since then, Commander has undergone several successful reiterations, each time bringing new technology and innovations to the world of automation.
The new Commander C series has been designed to be a simple and compact AC motor speed controller that meets advanced requirements in a wide range of applications and provides optimum user experience.
Commander C Highlights

✓ Set just 4 parameters to get your drive started
✓ Plug-in options for advanced control
✓ Dual Safe Torque Off (STO)
✓ Equipped with the latest energy saving features
✓ Up to 180% overload for high torque applications
✓ On board PLC
✓ Straightforward installation and commissioning
✓ Easy motor pairing and performance control
✓ Robust and reliable design

Simple set up. 3 steps to control

Setting up a drive can require training, specialist knowledge and time.

Not with Commander C: it will get you up and running, from out of the box to controlling your motor, in minutes.Three simple steps will set up your drive for most fan, pump, compressor, conveyor and general purpose applications! 
Specifications Options and Accessories Software Applications Downloads


Open loop vector or V / Hz induction motor control

Open loop Rotor Flux Control for induction motors (RFC-A)



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


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.


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)


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


Complies with the Restriction of Hazardous Substances Directive (2011/65/EU)


AC Supply Requirements


100 V models: 100 to 120 Vac ±10%
200 V models: 200 to 240 Vac ±10%
400 V models: 380 to 480 Vac ±10%


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




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


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

DC Bus Overvoltage Trip

Frame sizes 1 - 4: 
100 V models: 510 Vdc
200 V models: 510 Vdc
400V models: 870 Vdc

Drive Overload Trip

Frame size 5 - 9: 
200V models: 415 Vdc 
400 V models: 830 Vdc

Instantaneous Overcurrent Trip

Programmable: Default settings: 180% for 3s, 150% for 60s

Phase Loss Trip

220% of rated motor current

Over-temperature Trip

DC bus ripple threshold exceeded

Mechanical Shock

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 file NMMS/8: E171230


CE approval


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 Registered supplier No. 12003815281


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



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