PLEASE NOTE: Effective 2019, we no longer supply Control Techniques variable frequency drives and components. We have drives from several other manufacturers which can meet or exceed the performance characteristics of the Control Techniques line. Simply complete the form below, or contact us with the model of your current or obsolete Control Techniques drive and we’ll be glad to identify a suitable replacement.

Also, the Fincor and Saftronics lines of AC variable frequency drives, DC variable speed drives, and reduced voltage starters were once owned by Emerson but have been obsolete for several years. However, we have many years’ experience working with these drives and can quickly identify replacements capable of exceeding the quality and performance of these older drive technologies. For a suitable replacement, fill out the form below or contact us with your drive or application requirements, and we’ll handle it from there!

Commander SK

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Simplicity with Function


Obsolete Drive Replacement RFQ -

If you need a replacement for an existing obsolete drive, complete the following form and we will send you a quote for a suitable replacement.

* Required

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Commander SK



Commander SK has been designed to offer simplicity, but with the impressive selection of benchmark options and standard features it also offers functionality that enables users to get more productivity from their machines. Users that scratch the surface of this simple drive will reveal a list of dynamic yet functional options that owe a lot to the ground breaking Solution Platform products such as Unidrive Sp, that are in the Control Techniques product portfolio.


Option  Description  Order Code
Drive Configuration & Programming Configuration Tool CTSoft
RS232/485 Cable CT Comms Cable
Cloning and parameter storage SmartStick
Operator Interfaces Remote LED displav SK-Kevpad Remote
Remote LED display SM-Keypad Plus
HMI Operator Interfaces See Accessories Section
Power Accessories Internal EMC Filter Standard
External EMC Filter To fit drive
Braking Resistor To fit drive
Environmental Protection and Cable Management Options Top cover and conduit entry SK NEMA KIT A. B, or C
Top cover provides IP4X protection SK Top cover A, B, or C
Universal cable management SK-Bracket
Input/Output Extended I/O SM-I/O Lite
Extended I/O plus Real Time Clock SM-I/O Timer
Double Insulated Extended I/O SM-PELV
120V Extended I/O SM-I/O 120V
Communications Modbus RTU Standard
DeviceNet SM-DeviceNet
CANopen SM-CANopen
Ethernet SM-Ethernet
Application Programming Software (lEC61131-3) Ladder and function block programming SyPTLite
Memory for SyPTLite program LogicStick

Information provided by Control Techniques, a world leader in the design, production and marketing of electronic drives for the control of electric motors.