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The AFI-ESC1220 is an Electronic Speed Controller designed to drive BLDC motors. It meets the industrial requirements of high power and high voltage application for electronic vehicles, airplanes, boats and medium duty industrial machinery. It is rated at 24KW.


Product Specifications and Features

• Power: Up to 24KW

• Input Voltage: 40V (w/o fan) or 60V (w/fan) min, 120VDC max

• Input Current: Up to 200A max

• Operating Environment: 0o to 60oC (32o to 140oF), non-condensing

• Built-in heat sink with 12V, 3W, 82CFM cooling fan

• Motor PWM frequency from 8 to 32KHz

• Optical isolated drive

• Throttle resolution to 1us

• Throttle refresh rate at 1ms

• On/Off switch with anti-sparking circuit

• Over-voltage, over-current and over-temperature protection

• Color LED to indicate working or fault status

• Heavy duty input/output copper terminal lugs for high current

• Connector for throttle input, firmware upgrade, RPM readout and 12V fan power

• Dual tones for normal motor sensing during power up

• Automatic motor parameter recognition

• Additional operating parameter control under computer via USB

• Built-in data logger for voltage, current, throttle, temperature and motor RPM

• No BEC, optical interface to receiver for better noise immunity 

• Dimensions: 8.9 x 3.1 x 6.81 inches

• Weight: 4.4lbs







Astro Flight, Inc. warrants all products against defects in material and workmanship for a period of 90 days, from the date of purchase. During the warranty period, Astro Flight will repair or replace the product. This warranty does not apply if the product has been damaged by accident, abuse, misuse or misapplication, nor as a result of service or modification made by others. Astro Flight is not responsible for incidental or consequential damages resulting from the use of this product. This includes damages to intellectual information, property and personal injury. Astro Flight reserves the right to make changes in future product design, without reservation and without notification to its users.


Please contact the Customer Support Department to obtain a Return Merchandise Authorization (RMA) number, before shipping the product back to Astro Flight. Returns will not be accepted without a valid RMA number. For faster service, please have the following information on hand when calling or emailing for an RMA number: customer name, invoice number and reason for return. Shipping charges on returned items are the customer's responsibility. Products should be returned with shipping charges prepaid, along with proof of purchase, a description of the problem and the issued RMA number. All returned products are subject to a 15% restocking fee.



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