About the Product

The AT3520 KV550 combines a compact propulsion package with a long 5 mm shaft and a heat-management-focused motor design. The motor uses lateral cooling vents, curved high-torque magnets and a three-bearing arrangement to support stable operation under load.

Key Features

  • 550KV brushless motor
  • Long-shaft configuration
  • 12N14P motor design
  • 4–6S LiPo operating range
  • Triple-bearing construction
  • Lateral cooling vents
  • High-torque curved magnets
  • 5 mm inner and outer shaft diameter
  • 100 mm enameled-wire lead
  • Suitable for fixed-wing UAV propulsion
  • Maximum current: 50A / 180s
  • Maximum power: 1100W / 180s

Technical Specifications

Specification AT3520 KV550
Motor Type Brushless Outrunner
KV Rating 550KV
Configuration 12N14P
Motor Dimensions Φ43 × 65 mm
Shaft Diameter IN: 5 mm / OUT: 5 mm
Internal Resistance 31 mΩ
Weight incl. Cable 218 g
Lead 100 mm Enameled Wire
Rated Battery 4–6S LiPo
Idle Current @ 10V 1.1 A
Peak Current / 180s 50 A
Max Power / 180s 1100 W

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