The Curtis Difference 
 We make it easy 
 Design engineers of electric and hybrid vehicles who require energy efficient control of PMAC or  
 AC induction motors now have it easier than ever. The new Curtis dual-microprocessor AC Motor  
 Controller Model 1239E offers a highly cost-effective combination of superb power and torque,  
 smooth performance and expansive functionality – and is remarkably easy to use. 
 Easy from A to Z 
 Curtis will support your engineering team at every step in the vehicle’s development  
 from initial prototype design through to production release.  
 Easy to Integrate 
 Suitable for electric and hybrid vehicles with a maximum battery voltage of 170V. 
 Incorporates an isolation barrier for 12V logic and an isolated CANbus port.   
 Easy to Program 
 The proprietary Curtis VCL (Vehicle Control Language) allows vehicle developers to  
 utilize all available I/O and create custom logic functions. 
 Easy to Configure  
 Configurable CANbus connection allows high-speed communication with Battery  
 Management Systems and Vehicle Control Systems.  
 Easy and Versatile Control 
 The Curtis Model 1239E is able to control Synchronous PMAC and Induction motors for  
 pump, traction and on-engine hybrid applications. 
 See for yourself. We are ready to help you. 
 www.curtisinstruments.com 
 
				
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