6000W 120KV Sensorless Waterproof BLDC Motor, IP68

IP68 Inrunner BLDC Motor. Sensorless underwater compact motor, offered with matching ESC controller. Maximum power 6 kW, battery input 6–20S. Motor dimensions 65 × 161 mm. Cost-effective BLDC motor and ESC set, suitable for direct-drive propellers, e-foil surfboards, skateboards and longboards.

Specification

Note: The motor is powered by 6-20S batteries, S is the number of batteries, voltage of every battery is 3.7V DC.

ESC (Electronic Speed Controller) Selection for Waterproof BLDC Motor

• A BLDC motor can be used with an ESC as long as its speed does not exceed the ESC’s limit.
• BLDC motor speed = Battery Voltage × KV value;
  Stator speed = Battery Voltage × KV value × Pole Pairs.
• The maximum speed limit of the V4 series ESC is 60,000 ERPM.
  The maximum speed limit of the V6 series ESC is 150,000 ERPM.
• If a BLDC motor’s maximum speed surpasses the ESC’s limit, it is possible to match them by lowering the motor’s operating voltage. However, this is not recommended, as it prevents the motor from functioning as a true brushless DC motor.

ESC (Electronic Speed Controller) Specification

Note: The ESC model with * is the recommended controller for this page of motor, if you need other ESC models, please contact us.

Details

Dimension (Unit: mm)

Applications

Jet Ski

Propeller

Robot Model

Electric Surfboard

Q: Can brushless dc motor work underwater?

A: Yes, a brushless DC (BLDC) motor can work underwater if it is specifically designed to be waterproof or submersible, usually with an IP68 or higher rating. Standard BLDC motors are not suitable for underwater use because water can cause short circuits and corrosion. Waterproof BLDC motors are sealed to prevent water ingress and are commonly used in applications like electric surfboards, submersible pumps, and underwater drones.