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
| Model |
BLDC-65161 |
| Max Power |
6000W (8 hp) |
| Rotation Speed KV (RPM/V) |
120KV |
| Max Input Voltage* |
DC 25-84V |
| Peak Current |
200A |
| Max Spin Speed |
16380 rpm |
| Motor Pole |
6 |
| Max Torque at 60% |
9 N.m |
| Motor Dimension |
65*161mm |
| Max Working Temperature |
120℃ |
| Insulation Voltage & Leak Current |
AC500V/10ma/3S |
| Lead Wires Extension |
8AWG x 1300mm |
| Waterproof Grade |
IP68 |
| Motor Wire |
8AWG |
| Plug |
8mm |
| Weight |
3kg |
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
| Model |
Current Value |
Number of Batteries (Input Voltage) |
| FSESC 4.12 |
Continuous 50A, peak 240A |
3S-12S (8V-60V) |
| FSESC 4.20 |
Continuous 50A, peak 240A |
3S-12S (8V-60V) |
| VESC 6.6 mini dual drive |
1-channel 100A continuous, 2-channel 200A continuous |
3S-12S (8V-60V) |
| 1-channel peak 400A, 2-channel total peak 800A |
| VESC6.6 integrated switch dual drive version |
1-channel 100A continuous, 2-channel 200A continuous |
3S-12S (8V-60V) |
| 1-channel peak 400A, 2-channel total peak 800A |
| FSESC6.6 VESC6.6 single drive integration |
Continuous 60A, peak 150A |
3S-12S (8V-60V) |
| VESC4 dual drive integration |
50A continuous 1-channel, peak 100A 2-channel, peak 300A 2-channel |
3S-12S (8V-60V) |
| ODESC3.6 single drive/dual drive |
50A continuous 1-channel, peak 120A 1-channel |
3S-12S (8V-60V) |
| VESC6 dual drive |
1-channel 100A continuous, 2-channel 200A continuous |
3S-12S (8V-60V) |
| 1-channel peak 400A, 2-channel total peak 800A |
| Single drive V6 75200* |
Continuous 200A |
3S-12S (8V-60V) |
| Single drive VESC6 waterproof version |
Continuous 60A, peak 150A |
3S-12S (8V-60V) |
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
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.
