AF-300 P11â„¢
Adjustable Frequency Drives

The AF-300 P11 Adjustable Frequency Drive is easy to use out of the box at a price that you can afford.
The AF-300 P11 is an AC packaged drive that provides the functionality required for variable torque loads such as fans, pumps and compressors. Forward/Reverse and Simple commands from the local or remote keypad or from the facility management system along with pre-loaded motor parameters and factory defaults allows for quick and ready to go installation.
The AF-300 P11 offers expanded horsepower ratings in both 230 VAC (1/4 to 150 Hp) and 460 VAC (1/2 to 800 Hp) for even greater range of application.

The AF-300 P11 has an array of functions that provides significant benefits in variable torque applications. New standard features includes: auto-tuning without having to rotate the motor, built in PID control, rotating motor pick up control (catch spinning motor), automatic energy-saving operation which minimizes drive and motor loss at light load and other functions to combine performance and energy savings. The new generation IGBT means reduced electrical noise and less voltage spiking. On-line-tuning provides a continuous check for variation of motor characteristics during running of high-precision speed control. And the energy savings mode will help lower operating costs. In ratings of 30Hp and less the AF-300 P11 is designed for side by side installation with zero clearance for optimum use in space restricted areas.
All of this power, versatility and reliability in one compact drive. All drives conform with the following safety standards: UL, cUL and CE. Panel mounted models are available for your bypass applications.