U01 12V~16V 2Kg Thrust Brushless Underwater Thruster/Propeller/propulsion With Bi-directional control ESC For ROV Boat

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APISQUEEN U1 freshwater thruster backward propulsion power test


APISQUEEN U1 freshwater thruster forward propulsion power test


We are the source factory, for bulk purchase / customization please contact us at lynn@underwaterthruster.com.

Environment: fresh water only

Voltage: 12-16V (2S-4S LiPo)
Max. power: 390W
Max. current: 17A
Best working voltage: 16V(4S Lipo)
Cable length:330mm

U01 Applicable environment: freshwater

3D drawing download (STP format):☟☟☟


12-24V 2Kg Thrust Brushless Underwater SUBSEA Thruster/Propeller/propulsion With Bi-directional control ESC For ROV Boat.

The ESC is specially developed for underwater thrusters and has the following features:

1. The proprietary firmware of ApisQueen thrusters is specially designed to improve the superior performance of the thrusters. The motor PWM generated by the hardware can improve the smooth throttle response and reduce the noise.
2. ApisQueen's exclusive firmware will generate regenerative braking, making it more efficient. When the throttle changes from large to small, the thruster decelerates and responds more quickly, and the stability and flexibility of the thruster are significantly enhanced.
3. The ESC automatically detects the throttle signal when it is powered on, and supports 1-2ms pulse width input, Oneshot and Multishot in normal PWM throttle mode.
4. Support Dshot150, Dshot300 and Dshot600. Dshot is a digital signal with strong anti-interference ability, and the ESC does not need to calibrate the throttle stroke.
5. The signal wire is a twisted pair of silicone wires, which increases its service life and effectively reduces the interference caused by the signal transmission in the copper wire, making the thruster more stable.

Non-waterproof 45A ESC (Voltage: 2-6S Lipo):

Waterproof 45A ESC (Voltage: 2-6S Lipo):

Description of Underwater Propulsion CW and CCW

Marine propellers are usually classified into two types, left-hand and right-hand, known as CW and CCW, respectively.
CW is an abbreviation for Clockwise, which means a propeller that rotates clockwise, also known as a right-handed propeller.
When a ship's propeller rotates, the leading edge of the propeller blade is on the right and the trailing edge is on the left when
 viewed from the side, driving the water in the same direction as the rotation. A starboard propeller is usually mounted on the
left side of the boat, i.e. port side.
CCW stands for counterclockwise and indicates a propeller that rotates counterclockwise, also known as a left-handed propeller.
When a ship's propeller rotates, the leading edge of the propeller blade is on the left side and the trailing edge is on the right
side when viewed from the side, pushing the water flow in the direction opposite to the direction of rotation. The port propeller
is usually installed on the right side of the boat, i.e. the starboard side of the boat.
Installing the left and right propellers on both sides of the boat balances the propulsion and side thrust, making the boat more
stable and steady.
CW propellers CCW propellers
 produce forward thrust when rotating clockwise
and backward thrust when rotating counterclockwise;
produce forward thrust when rotating counterclockwise
and backward thrust when rotating clockwise;


The frequency of PWM signal is 50hz, 100hz, 200hz or 500hz, etc. The higher the control frequency, the shorter the period, the shorter the control interval, and the faster the ESC and motor response speed The faster the ESC and motor response. Conversely, the lower the control frequency, the longer the period, the longer the control interval, and the slower the ESC and motor response.


【45A ESC manual PDF】


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Customer Reviews

Based on 1 review
Nicholas Wilmshurst
doesn't come with the esc

Good price for a nice thruster but f.y.i. ,it doesn't actually come with the esc like suggested in the description.

Dear Buyer. Thank you for your review. There are two kinds of ESC in the description:(1) Non-waterproof 45A ESC (Voltage: 2-6S Lipo); (2) Waterproof 45A ESC (Voltage: 2-6S Lipo); We will ship according to the option you ordered.