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D155L210 Waterproof & Water-Cooling 76kv 45kw Brushless DC Electric Boat Motor

Engineered as a high-velocity powerhouse for demanding marine propulsion, the D155L210-WP+WC-76Kv motor leverages a substantial 155mm diameter core with an advanced 12N10P magnet structure. Delivering a formidable 75 N·m of peak torque and 46 kW of maximum power, with speeds reaching 6,384 RPM, it is designed to drive high-speed thrusters and powerful jet pumps for performance crafts and agile marine vessels.
Integrating IP68 waterproof protection with efficient water-cooling, it is built for permanent submerged operation within sealed systems, ensuring reliable thermal management and sustained high-output performance.

• Peak Power: 46 kW • Peak Torque: 75 N·m • Max Speed: 6,384 RPM
• Waterproof Rating: IP68 • Weight: 16.4 kg

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System Types:
All
Kv:
<100
Controller Type:
Sensorless
Maximum Voltage:
60V
Maximum Continuous Current:
< 120A

Electric Boat Motor Brushless DC Motor Waterproof Motor Water-Cooled Motor Low Torque Motor

Features

Specification

Dyno Tested Data

Dimension

Key Features

Robust & durable: Outer shell in black anodizing aluminum alloy, improve conductive heat transfer, prevent corrosion and oxidation
High performance: Our motors provide extremely high torques with a minimum of power consumption.
Silient: low-cogging electro-magnetic design and dynamically balanced rotor, extremely silient and smooth operation.
Efficiency: Our energy-efficient motors save energy and costs, efficiency up to 90%.
Highter on power to weight ratio and torque to weight ratio.
Compact: High efficiency and high power density realized in a compact design.
Ball-bearing construction: Double seal ball bearings with moisture resistant grease for long life.
Cooling solution: water-cooling & Air-Cooling.
Shaft in SS316 Stainless Steel: withstand redial/axile stree,and work in the sea water against corrosion.

Applications:
Electric marine engine Propulsion for various watercrafts

1. Underwater thruster
2. POD drive
3. Jetski / Speed Boat
4. Yacht

Item	Specification
Model	D155L210-76KV
Working Voltage Range	10-36S (35-151.2V)
Max. Free Speed	6,384 rpm
Speed Constant (Kv)	76
Unloading Current (at 8.4V)	4.3 A
Torque Constant (Kt)	0.1328 N·m/A
Max. Output Power	46 kW
Peak Torque	75 N·m
Peak Current	800 A
Cont. Working Current	400 A
Max. Motor Efficiency	89.0%
Weight	16.4 kg
Configuration	12N/10P
Dimension (Dia. x Length)	Ø155 x L210 mm
Shaft Output	Ø30 x L30 mm
Insulation Voltage & Leak Current	AC500V/10MA/3S
Lead Wires Extension	4AWGx300mm
Life Span	8,000 H
Max. Working Temperature	120°C
Important Note	Motor must be submerged in water when put in use.

D155L210 at 76Kv -50VDC
Item No.	C_Voltage (V)	C_Current (A)	C_Input Power(W)	M_Voltage (V)	M_Current (A)	M_Input Power(W)	M_Efficiency (%)	M_Speed (rpm)	M_Torque (N*m)	M_Output Power(W)
0	50.209999	43.369999	2174.060059	37.52	35.869999	2134.860107	87.374046	3594	4.956005	1865.313721
1	49.98	68.589996	3422.449951	37.099998	58.099998	3365.600098	89.918686	3446	8.386004	3026.303467
2	49.830002	86.040001	4278.830078	36.860001	74.099998	4205.399902	91.186226	3349	10.934005	3834.745361
3	49.650002	106.529999	5276	36.619999	93.330002	5175.75	91.96228	3240	14.028005	4759.737793
4	49.490002	125.900002	6209.629883	36.43	112.050003	6080.5	91.878967	3144	16.968004	5586.700684
5	49.32	144.820007	7110.939941	36.27	130.600006	6950.029785	91.607498	3056	19.894005	6366.748535
6	49.16	163.75	8002.759766	36.119999	149.660004	7802	91.267761	2976	22.848005	7120.710449