SunnySky X Series V3 X4125 V3 Brushless Motor 515KV
by SunnySky

SunnySky X Series V3 X4125 515KV: Premium Power for Large RC Aircraft

The SunnySky X Series V3 X4125 515KV Brushless Motor represents the pinnacle of electric propulsion for large RC airplanes. Part of the esteemed X Series V3 line, this motor is specifically designed for pilots who demand both high efficiency and immense power from their fixed-wing models.

High-Performance Engineering:

The X4125 V3 features a 515KV rating, perfectly tuned for modern 6S LiPo battery setups, providing an excellent combination of torque for large propellers and speed for dynamic flight.

• Robust Construction: The motor utilizes a large physical size, measured by its 41mm Stator Diameter and 25mm Stator Thickness, ensuring exceptional mechanical integrity and heat dissipation, even during peak performance.

• Power Capacity: Engineered to handle substantial power demands, this motor can draw a maximum continuous current of 90A for 30 seconds, delivering over 2250W of peak continuous power (based on testing of similar KV variants).

• Smooth Operation: Featuring a 12-slot, 14-pole configuration, the motor runs incredibly smoothly and efficiently, minimizing vibration and maximizing battery endurance.

The SunnySky X4125 V3 is the go-to solution for power systems driving large-scale propellers (typically 15-inch or 16-inch on 6S, depending on pitch). Upgrade to the X Series V3 for the power, reliability, and precision engineering that your high-value RC model deserves.

Specifications

• Motor KV: 515

• Stator Diameter: 41mm

• Stator Thickness: 25mm

• Rotor Diameter: 49.7mm

• Body Length: 54mm

• No. of Stator Slots: 12

• No. of Rotor Poles: 14

• Max Lipo Cell: 6S

• Recommended ESC: 80-100A (or 100-130A depending on propeller load)

• No-load current: Approximately 1.4A-1.8A at 10V (based on nearest KV motors in series)

• Max Continuous Current: 90A / 30 seconds

• Max Continuous Power: 2250W

• Motor Resistance: Approximately 20.5mΩ

• Weight: 351g

• Recommended Prop(inch) on 6S: EOLO 15x8, 15x10, 16x8, 16x10 (Prop recommendations vary by KV, these are common sizes for X4125)