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D126L165 Waterproof 60V 72V 84V 96V 110V 71kv 45kw Brushless DC Motor

Engineered for demanding high-torque marine and industrial applications, the D126L165-WP-71KV brushless motor delivers exceptional power density within a robust 126mm frame. Its optimized 4T-Y winding and low KV design enable efficient operation on high-voltage systems (51.8-117.6V), producing up to 45 kW of peak power and a formidable 66 N·m of torque. With a maximum speed of 8,349 RPM, this motor is ideally suited for direct-drive systems in large electric outboards, heavy-duty underwater thrusters, and industrial propulsion where reliable, high-thrust performance is critical.

• Peak Power: 45 kW • Peak Torque: 66 N·m • Max Speed: 8,349 RPM
• Waterproof Rating: IP68 • Weight: 8.0 kg

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

Marine Motor Electric Motor Waterproof Motor Low Torque Motor Brushless DC 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 92%.
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.

Item	Specification
Model	D126L165-71
Working Voltage Range	14-28S (51.8-117.6V)
Max. Free Speed	8,349 rpm
Speed Constant (Kv)	71
Torque Constant (Kt)	0.1624 N·m/A
No Load Current (at 8.4V)	2.9 A
Max. Output Power	40.0 kW
Peak Torque	67.0 N·m
Peak Current	725 A
Continuous Current	275 A
Max. Motor Efficiency	93.0%
Weight	7.9 kg
Configuration	12N/10P
Cooling Solution	Waterproof
Dimension (Dia. x Length)	D126 x L165 mm
Max. Working Temperature	120ºC
Insulation Voltage & Leak Current	AC1000V / 10mA / 3s
Shaft Output	D20 x L30 mm
Lead Wires Extension	2AWG x 300mm
Life Span	8,000 H

D126L165-Dyno Test at 95KV-58Vdc
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)	Synthesis Efficiency (%)
0	58.139999	28.85	1676.400024	43.470001	24.120001	1656.01001	93.190117	5263	2.799995	1543.237671	92.056648
1	57.799999	61.200001	3535.100098	42.84	51.060001	3500.850098	95.672401	5013	6.379995	3349.347412	94.745476
2	57.5	91.970001	5285.680176	42.369999	78.480003	5212.919922	95.853989	4781	9.979996	4996.791504	94.5345
3	57.330002	109.160004	6255.870117	42.16	94.480003	6154.399902	95.64949	4661	12.059996	5886.652344	94.098061
4	57.110001	131.979996	7535.060059	41.93	116.279999	7389.200195	95.046265	4507	14.879995	7023.158691	93.206406
5	56.900002	154.570007	8791.320313	41.740002	138.539993	8589.719727	94.214989	4366	17.699995	8092.803223	92.054466
6	56.650002	179.320007	10153.12988	41.549999	163.729996	9888.540039	93.202721	4223	20.839994	9216.388672	90.773865
7	56.470001	195.899994	11057.83984	41.439999	181.039993	10739.67969	92.625076	4130	22.999994	9947.636719	89.960037
8	56.23	216.070007	12142.12012	41.279999	202.600006	11756.48047	91.647934	4019	25.599995	10774.57129	88.737152

D126L200 at 50Kv
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)	Synthesis Efficiency(%)
0	48.869999	27.799999	1335.699951	36.740002	23.139999	1324.380005	89.803856	2299	4.939995	1189.34436	89.042778
1	48.740002	52.139999	2521.030029	36.439999	43.380001	2500.939941	92.858543	2200	10.079995	2322.336426	92.118553
2	48.639999	74.860001	3600.449951	36.200001	63.279999	3569.199951	93.199341	2112	15.039995	3326.470947	92.390427
3	48.549999	97.75	4653.330078	36.060001	83.599998	4605.049805	92.605042	2030	20.059996	4264.508301	91.644226
4	48.459999	120.68	5660.879883	35.98	103.769997	5587.790039	91.618935	1957	24.979996	5119.473633	90.436005
5	48.369999	144.800003	6662.859863	35.959999	124.57	6564.359863	90.455025	1890	29.999994	5937.793457	89.11779
6	48.299999	170.300003	7662.240234	35.98	145.850006	7530.810059	89.167145	1831	35.019997	6715.008301	87.637665
7	48.23	196.919998	8645.570313	36	167.320007	8468.730469	87.567017	1773	39.939995	7415.814453	85.775887
8	48.16	226.059998	9684.820313	36.049999	190.399994	9456.889648	85.65139	1715	45.099995	8099.95752	83.635597
9	48.099998	255.380005	10730.74023	36.080002	213.759995	10445.12012	83.498512	1659	50.199993	8721.519531	81.276031
10	48.040001	282	11728.08008	36.09	236.429993	11383.75	81.017509	1603	54.939995	9222.831055	78.638885
11	47.959999	304.440002	12633.01953	36.049999	257.350006	12238.09961	78.440636	1550	59.139996	9599.643555	75.98851

D126L200 at 100Kv
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)	Synthesis Efficiency(%)
0	59.82	55.889999	3332.389893	44.41	46.380001	3287.870117	86.514732	5566	4.879995	2844.491943	85.358917
1	59.630001	91.860001	5470.049805	43.860001	77.050003	5379.5	91.02594	5350	8.739995	4896.740234	89.519119
2	59.540001	112.040001	6662.080078	43.580002	94.919998	6537.149902	92.849159	5231	11.079995	6069.688477	91.108009
3	59.419998	138.369995	8211.580078	43.259998	118.599998	8022.060059	92.1614	5079	13.899995	7393.242676	90.034348
4	59.27	162.949997	9644.820313	42.950001	141.199997	9382	92.706818	4932	16.839994	8697.753906	90.180573
5	59.16	187.729996	11091.79004	42.700001	164.410004	10725.33008	92.414391	4785	19.779995	9911.748047	89.361122
6	59.07	211.289993	12465.37988	42.540001	186.880005	11995.90039	91.813774	4666	22.539995	11013.88867	88.35582
7	58.970001	237.139999	13965.42969	42.360001	211.899994	13364.4502	91.295059	4544	25.639996	12201.08301	87.366325
8	58.869999	262.029999	15400.9502	42.25	236.410004	14673.7002	90.881134	4437	28.699995	13335.625	86.589622
9	58.790001	284.100006	16670.48047	42.139999	258.5	15818.04981	90.387474	4348	31.399994	14297.53613	85.765594