12kW 140KV Sensorless Waterproof BLDC Motor, IP68

$1,566.95

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12 kW brushless outrunner motor with IP68 waterproof protection and cost-effective design. Features 1125 rpm rotation speed, 6000W rated current, and an operating temperature up to 120 °C. 140 KV motor is ideal for electric surfboards, surf motorcycles, and submersible propellers.

Free shipping

Delivery date: 7-14 days

SKU: BLDC-WP12000

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DESCRIPTION

140 KV waterproof brushless DC motor with 12 kW power, operating at 28–75.6 V DC and featuring IP68 protection. This outrunner BLDC motor is ideal for electric surfboards, hydrofoils, and RC boats.

Specification

Model	BLDC-85135
Rated Voltage	36V
Rated Power	6000W
Max Power	12000W
Rotation Speed KV (RPM/V)	140 KV
Voltage Range	6-18S
Rated Torque	12.6 Nm
Max Torque	21.8 Nm
Line Length	1300 mm
Rotate Speed	1125 rpm
No-load Current	1.5A
Insulation Voltage	500V
Shaft Diameter	12 mm
Number of Pole Pairs	5
Plug	10 mm gold plug
Waterproof Level	IP68
Weight	2.8 kg

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)
VESC 6.6 mini dual drive	1-channel peak 400A, 2-channel total peak 800A	3S-12S (8V-60V)
VESC6.6 integrated switch dual drive version	1-channel 100A continuous, 2-channel 200A continuous	3S-12S (8V-60V)
VESC6.6 integrated switch dual drive version	1-channel peak 400A, 2-channel total peak 800A	3S-12S (8V-60V)
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)
VESC6 dual drive	1-channel peak 400A, 2-channel total peak 800A	3S-12S (8V-60V)
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.

Dimension (Unit: mm)

12kW waterproof BLDC motor dimension

Applications

Jet Ski

Propeller

Robot Model

Electric Surfboard

Q: How to make a brushless dc motor waterproof?

A: To make a brushless dc motor waterproof, key steps include sealing the motor housing with gaskets or epoxy, applying waterproof coatings to exposed windings and connections, and using stainless steel or corrosion-resistant materials for hardware. Ensuring all cable entry points are sealed and using an appropriate IP-rated enclosure helps prevent water ingress. For long-term reliability, choose waterproof bearings and regularly inspect seals to maintain protection in wet or underwater environments.

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