C4240 V2 850kv 750kv BLDC Motor for Rc Vtol Plane

Feature:

Model C4250-V2 BLDC Motor for Rc Vtol Plane
KV(RPM/VoLt) 750/850
MAX Watts (W) 640/650
Voltage Range(V) 12-28
Max Current(A) 45
Rotor Poles 14
No load Current(A) 0.8/1.0
Resistance(Ω) 0.028/0.035
Motor Size (mm) 42 x 37.5
Stator Size(mm) 35 x 10
Weight(g) 121
Propeller (Inch) 12×8/13×6/13×8  \ 12×8/13×6/14×8

Model:

其他信息

Model

C4250-V2 BLDC Motor

Voltage Range

12~28V

Max Current

45

Max Watts

650

KV (RPM/Volt)

750

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Category

Proudct Information:

Description

About: C4240 V2 750KV BLDC Motor | High-Torque Brushless Motor for RC VTOL Planes & Fixed-Wing Aircraft

Key Features

  1. 14-Pole High-Torque Rotor Design

    • Delivers 650W max power with ultra-stable output, ideal for VTOL takeoff/landing and aggressive maneuvers.
    • Reduces cogging torque by 18% compared to 12-pole designs.
  2. Aviation-Grade CNC Machined Housing

    • 6061-T6 aluminum alloy front/rear covers withstand 50,000 RPM+ operation.
    • Precision heat dissipation grooves reduce operating temperature by 15-20°C.
  3. Dynamically Balanced Rotor System

    • <0.03g·mm residual imbalance ensures vibration-free operation at 28V/45A max load.
    • Extends bearing lifespan by 30% under high-RPM conditions.
  4. Oxygen-Free Copper Windings

    • 99.99% pure copper with 0.035Ω phase resistance maximizes efficiency (89%+).
    • Supports continuous 650W output without thermal throttling.
  5. Multi-Voltage Compatibility

    • Operates on 3S-6S LiPo batteries (12-28V) for flexible power configurations.
    • Matched with 12×8″ to 14×8″ propellers for 1.2kg-3.5kg thrust range.

 

Technical Specifications

CategoryParameters
ElectricalKV Rating: 750 RPM/V|Max Current: 45A|No-Load Current: 0.8A|Power: 650W
MechanicalDimensions: Φ42×37.5mm|Stator: Φ35×10mm|Weight: 121g (±3g tolerance)
CompatibilityPropellers: 12×8, 13×6, 14×8 (CF/Nylon)|Shaft Diameter: 5mm|Mount: 16x19mm

Faradyi Motors Service

How to use the motor

1. Use tolerance: pay attention to the use range of voltage and current, and use the motor under the conditions specified in this standard, otherwise the life of the motor will be reduced.
2. Handling the motor: handle it with care, and use the motor casing as much as possible.
3. Motor wiring: the red lead wire is connected to the positive pole, and the black lead wire is connected to the negative pole. If the connection is reversed, the motor will rotate in the opposite direction.
4. Overload: Use it within the specified load range as much as possible. It is strictly forbidden to run the motor in a stalled state or close to the stalled state for a long time, otherwise the motor will burn out.
5. Motor storage:Storage temperature: 0C-40°C, storage humidity: 15%-90% RH
Avoid placing it in an environment with high temperature, high humidity and corrosive gas.
6. Motor operating temperature: 0°C-70C

Motor Precautions

1. When you use the motor, there must be no binding objects, such as adhesive, do not flow into the bearing through the rotating shaft, which will hinder the operation of the motor.
2. The rotation of the shaft may have the opposite effect on the life of the motor. In order to prolong the life, please check whether your load is in accordance with the regulations. Do not overload or hang items that hinder the rotation of the shaft.
3. Manufactured into an eccentric heavy radiation load, harmful to the life of the motor.
4. Do not store it in high temperature or extreme humidity, and do not place it in corrosive gas, which will reduce the effect of the motor
5. Do not run the motor in the surrounding high temperature and humidity.
6. When soldering on the positive and negative motor terminals of the power supply, the temperature of the soldering iron is 340C40C, and the heating time is within 3 seconds. Do not deform the plastic. Let the solder point flow into the motor or break the end of the wire during work, which will make the motor function decline.
7. Do not let the motor shaft get stuck. When the power is supplied, the motor will overheat in a short time and burn its accessories.
8. Supply the specified power and make sure it is within the range of measurable requirements.
9. When installing pulleys or gears, do not increase the weight abnormally when pressing them in.
10. When installing the motor, if the screw is too long, it will cause contact between the motor itself and the
rotor, which will affect the characteristics.

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