RC Boat 2440 KV4500 Brushless Motor 2S-3S 40A 5V/3A ESC and Water Cooling Jacket Kit for RC Boat Jet Drive Speed Boat Marine

-- Specification & Features -- 2440 KV4500 Four Magnetic poles Brushless Motor Shaft diameter: 2.3mm ("D" shape )Outer shaft length: 12mmMaximum outer diameter of the motor: 24mmMounting hole distance: 16mmMounting hole thread: M2.5Length: 40mmPower: 300WNet Weight:61gKV value: 4500KVRecommendation( Not included in listing ): (7.4V-11.1V)2S-3S lithium battery, 40A ESC. Waterproof Water Cooling 40A brushless ESCSustained Current/Peak Current: 40A/240ABEC Output:5V/3AWorking Voltage: 7.4V-11.1V (2-3S LIPO Batteries)Input Plug: T PlugOutput Plug: 3.5mm Female plugWater nipple outdiameter: 4.0mmSize: 74mm*25mm*14.5mmWater Cooling Jacket:Jacket length: 25mmInner diameter:24mmWater jacket outer diameter: 31mmMaterial: aluminum alloy and copper-- Item Contains --1PC 2440 KV4500 motor1PC 40A brushless ESC 1PC water cooling Jacket

• High-Performance Brushless Motor: Specifically designed for RC Boat, RC Marine, and RC Jet Boat applications, featuring four magnetic poles for lower heat, stronger torque, better low-speed linear performance, and over 80% power efficiency compared to 2-pole motors.
• Water Cooling Jacket Included: Equipped with a water cooling jacket, providing effective temperature reduction in enclosed spaces for optimal motor performance and longevity.
• 40A ESC with Advanced Features: The Brushless Motor Electronic Speed Controller (ESC) is fully waterproof and dustproof, suitable for RC Boat, RC Yacht, RC Marine, and various boat models like FT009 / FT011 / FT012. It features a water cooling system and MOSFET with extremely low internal resistance, enhancing over-current withstanding capability and reliability. Two running modes ("forward only" and "forward and backward") cater to different applications.
• Multiple Protection Features: Incorporates various protection features including low voltage cut-off protection, over-heat protection, and throttle signal loss protection, ensuring safe and reliable operation. The high-efficiency water cooling system further enhances performance.
• Built-in High Power Output BEC: Includes a built-in high-power output Battery Eliminator Circuit (BEC), providing stable power supply to the receiver and servo systems for consistent performance.