ECOII Series / 52XX / ECO II

ECO II 5215 Brushless Motor

A high-output 5215-class aircraft motor with five KV options for 13 to 17 inch propeller systems, long endurance, and heavy-lift platforms.

230KV260KV300KV360KV420KV

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KEY FEATURES

Designed for FPV performance tuning

Five KV choices cover 6S to 12S power systems and 13 to 17 inch propellers.
Precision bearings, a steel shaft, multi-strand winding, and an anodized motor structure support reliable high-load operation.
A 30 x 30 mm four-hole M4 mounting pattern, 400 mm 14 AWG silicone leads, and an M6 propeller shaft simplify aircraft integration.
Verified load-test data is provided for every KV option, including voltage, current, thrust, power, efficiency, RPM, and throttle.

SPECIFICATIONS

Product snapshot

Stator Size: 5215
Series: ECO II
KV Options: 230KV, 260KV, 300KV, 360KV, 420KV
Motor Dimensions: 60.6 x 65.7 mm
Framework: 12N14P
Weight: 341 g including wires
Propeller: 13-17 inch
Bearing Shaft: 6 mm
Prop Adapter Shaft Thread: M6
Shaft Thread: CW
Mounting Pattern: 30 x 30 mm, 4 x M4
Lead: 400 mm 14 AWG silicone wire

VARIANT SPECIFICATIONS

KV configuration matrix

KV	Battery cells	Propeller	Idle current	Internal resistance	Peak current	Maximum power
230KV	8-12S	17 inch	0.8 A @ 10 V	55 mOhm	76.3 A @ 12S	3412 W @ 12S
260KV	8-12S	15 inch	0.9 A @ 10 V	50 mOhm	69.2 A @ 12S	3266 W @ 12S
300KV	8-12S	13-17 inch	1.2 A @ 10 V	41 mOhm	72.1 A @ 12S	3396 W @ 12S
360KV	8-12S	13-17 inch	1.4 A @ 10 V	32 mOhm	87.4 A @ 12S	3894 W @ 12S
420KV	6-8S	13-15 inch	1.7 A @ 10 V	26 mOhm	77.7 A @ 8S	2412 W @ 8S

OFFICIAL GRAPHICS

Engineering drawing and specifications

ECO II 5215 Brushless Motor engineering drawing 1

ECO II 5215 Brushless Motor technical specifications
SPECIFICATIONS
Framework	12N14P
Length	65.7 mm
Diameter	60.6 mm
Battery cells - 230KV / 260KV / 300KV / 360KV	8-12S
Battery cells - 420KV	6-8S
Recommended propeller	13-17 inch
Weight (with wire)	341 g
Prop adapter shaft thread	M6
Bearing shaft	6 mm
Shaft thread	CW
FEATURES
Precision bearing
Steel shaft
Anodized finish
30 x 30 mm, 4 x M4 mounting-hole pattern
Multi-strand winding
400 mm 14 AWG silicone wire
PACKAGE INCLUDES
4 x M4 x 12 screws
1 x steel M6 nyloc nut

LOAD TEST DATA

Verified performance data

The following measurements are from EMAX load-test records. Results may vary with battery, propeller, environment, and installation conditions.

230KV

HQ1708, 3-blade

ECO II 5215 Brushless Motor 230KV - HQ1708, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
45.75	1.96	980	89.67	10.93	2796	30%
45.74	2.96	1336	135.39	9.87	3255	35%
45.73	4.23	1735	193.44	8.97	3698	40%
45.71	5.82	2179	266.03	8.19	4137	45%
45.67	7.64	2642	348.92	7.57	4558	50%
45.65	9.88	3146	451.02	6.98	4963	55%
45.62	12.46	3726	568.43	6.55	5354	60%
45.58	15.49	4346	706.03	6.16	5760	65%
45.53	19.2	4978	874.18	5.69	6151	70%
45.48	23.05	5583	1048.31	5.33	6541	75%
45.41	27.7	6248	1257.86	4.97	6910	80%
45.33	33.46	7021	1516.74	4.63	7275	85%
45.24	39.39	7575	1782	4.25	7660	90%
45.11	47.21	8291	2129.64	3.89	8028	95%
44.85	65.66	9131	2944.85	3.1	8381	Max

GF1708, 3-blade

ECO II 5215 Brushless Motor 230KV - GF1708, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
45.75	2.2	1036	100.65	10.29	2774	30%
45.73	3.33	1433	152.28	9.41	3225	35%
45.71	4.76	1873	217.58	8.61	3661	40%
45.69	6.58	2367	300.64	7.87	4092	45%
45.66	8.7	2874	397.24	7.23	4507	50%
45.63	11.23	3454	512.42	6.74	4894	55%
45.59	13.94	4037	635.52	6.35	5286	60%
45.54	17.74	4720	807.88	5.84	5665	65%
45.49	21.43	5321	974.85	5.46	6067	70%
45.42	26.42	6079	1200	5.07	6431	75%
45.37	31.56	6741	1431.88	4.71	6799	80%
45.28	37.79	7420	1711.13	4.34	7175	85%
45.15	45.7	8251	2063.36	4	7538	90%
44.9	62.58	8947	2809.84	3.18	7848	95%
44.71	76.31	9320	3411.82	2.73	7911	Max

1708, 2-blade

ECO II 5215 Brushless Motor 230KV - 1708, 2-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
45.58	1.98	944	90.25	10.46	2778	30%
45.56	2.98	1291	135.77	9.51	3230	35%
45.54	4.28	1685	194.91	8.64	3671	40%
45.5	5.9	2116	268.45	7.88	4103	45%
45.47	7.84	2589	356.48	7.26	4524	50%
45.42	10.1	3081	458.74	6.72	4918	55%
45.37	12.75	3625	578.47	6.27	5303	60%
45.32	15.8	4185	716.06	5.84	5698	65%
45.26	19.84	4893	897.96	5.45	6071	70%
45.18	24.28	5563	1096.97	5.07	6446	75%
45.09	29.41	6235	1326.1	4.7	6798	80%
45.01	35.3	6902	1588.85	4.34	7169	85%
44.92	42.06	7468	1889.34	3.95	7539	90%
44.79	49.96	7973	2237.71	3.56	7915	95%
44.54	66.92	8499	2980.62	2.85	8250	Max

260KV

HQ1507, 3-blade

ECO II 5215 Brushless Motor 260KV - HQ1507, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
48.19	2.02	925	97.34	9.5	3288	30%
48.18	3.05	1265	146.95	8.61	3825	35%
48.16	4.39	1650	211.42	7.8	4359	40%
48.13	6.04	2071	290.71	7.12	4864	45%
48.1	8.02	2527	385.76	6.55	5364	50%
48.07	10.48	3060	503.77	6.07	5851	55%
48.03	13.36	3620	641.68	5.64	6328	60%
47.99	16.56	4195	794.71	5.28	6780	65%
47.93	20.05	4750	961	4.94	7223	70%
47.86	24.24	5321	1160.13	4.59	7662	75%
47.78	29.48	6033	1408.55	4.28	8093	80%
47.69	35.95	6808	1714.46	3.97	8512	85%
47.58	43.31	7587	2060.69	3.68	8931	90%
47.47	50.75	8166	2409.1	3.39	9365	95%
47.21	69.18	9139	3265.99	2.8	9776	Max

GF1507, 3-blade

ECO II 5215 Brushless Motor 260KV - GF1507, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
48.18	2.08	897	100.21	8.95	3269	30%
48.17	3.13	1227	150.77	8.14	3805	35%
48.15	4.5	1605	216.67	7.41	4334	40%
48.13	6.15	2017	296	6.81	4840	45%
48.1	8.17	2450	392.98	6.23	5341	50%
48.07	10.5	2902	504.74	5.75	5830	55%
48.03	13.32	3428	639.76	5.36	6318	60%
47.98	16.46	3990	789.75	5.05	6763	65%
47.92	20.23	4566	969.42	4.71	7194	70%
47.86	24.27	5099	1161.56	4.39	7636	75%
47.79	28.74	5632	1373.48	4.1	8091	80%
47.71	34.09	6262	1626.43	3.85	8537	85%
47.63	39.8	6869	1895.67	3.62	8985	90%
47.54	46.31	7416	2201.58	3.37	9415	95%
47.4	56	8261	2654.4	3.11	9845	Max

300KV

HQ1309, 3-blade

ECO II 5215 Brushless Motor 300KV - HQ1309, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
48.11	2.45	893	117.87	7.58	3907	30%
48.1	3.67	1222	176.53	6.92	4542	35%
48.08	5.26	1588	252.9	6.28	5180	40%
48.05	7.28	2002	349.8	5.72	5783	45%
48.01	9.73	2466	467.14	5.28	6371	50%
47.97	12.55	2922	602.02	4.85	6939	55%
47.92	15.72	3395	753.3	4.51	7486	60%
47.86	19.55	3981	935.66	4.25	8023	65%
47.8	23.92	4513	1143.38	3.95	8579	70%
47.72	28.93	5039	1380.54	3.65	9117	75%
47.64	34.73	5610	1654.54	3.39	9628	80%
47.54	41.59	6150	1977.19	3.11	10125	85%
47.41	50.61	6578	2399.42	2.74	10551	90%
47.11	72.09	7994	3396.16	2.35	11598	Max

1507, 2-blade

ECO II 5215 Brushless Motor 300KV - 1507, 2-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
48.13	2.1	870	101.07	8.61	3926	30%
48.12	3.12	1203	150.13	8.01	4571	35%
48.1	4.45	1583	214.05	7.4	5213	40%
48.08	6.13	2001	294.73	6.79	5831	45%
48.05	8.11	2453	389.69	6.29	6438	50%
48.01	10.57	2962	507.47	5.84	7030	55%
47.98	13.3	3471	638.13	5.44	7580	60%
47.93	16.54	4074	792.76	5.14	8125	65%
47.86	20.62	4717	986.87	4.78	8685	70%
47.8	25.19	5372	1204.08	4.46	9216	75%
47.71	30.91	6129	1474.72	4.16	9715	80%
47.63	36.98	6711	1761.36	3.81	10217	85%
47.52	44.89	7312	2133.17	3.43	10641	90%
47.4	53.66	7863	2543.48	3.09	11154	95%
47.23	65.15	8399	3077.03	2.73	11680	Max

HQ1708, 3-blade

ECO II 5215 Brushless Motor 300KV - HQ1708, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.15	2.21	785	71.05	11.05	2563	30%
32.14	3.31	1073	106.38	10.09	2983	35%
32.12	4.69	1392	150.64	9.24	3395	40%
32.1	6.39	1754	205.12	8.55	3790	45%
32.07	8.64	2210	277.08	7.98	4170	50%
32.04	11.03	2599	353.4	7.35	4560	55%
32	13.74	3035	439.68	6.9	4917	60%
31.95	16.94	3515	541.23	6.49	5264	65%
31.89	21	4090	669.69	6.11	5604	70%
31.83	25.21	4564	802.43	5.69	5961	75%
31.75	30.14	5101	956.95	5.33	6285	80%
31.67	35.2	5643	1114.78	5.06	6619	85%
31.58	41.9	6249	1323.2	4.72	6939	90%
31.48	48.86	6848	1538.11	4.45	7240	95%
31.37	56.87	7425	1784.01	4.16	7554	Max

GF1708, 3-blade

ECO II 5215 Brushless Motor 300KV - GF1708, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.15	2.45	861	78.77	10.93	2549	30%
32.14	3.7	1183	118.92	9.95	2957	35%
32.11	5.29	1539	169.86	9.06	3360	40%
32.09	7.28	1951	233.62	8.35	3743	45%
32.05	9.68	2403	310.24	7.75	4114	50%
32.01	12.57	2906	402.37	7.22	4481	55%
31.97	15.76	3404	503.85	6.76	4833	60%
31.92	19.17	3873	611.91	6.33	5177	65%
31.86	23.76	4500	756.99	5.94	5501	70%
31.78	28.5	4994	905.73	5.51	5837	75%
31.71	33.22	5407	1053.41	5.13	6187	80%
31.62	39.31	5980	1242.98	4.81	6495	85%
31.54	45.74	6548	1442.64	4.54	6816	90%
31.43	54.16	7267	1702.25	4.27	7090	95%
31.29	64.08	7956	2005.06	3.97	7377	Max

360KV

HQ1308, 3-blade

ECO II 5215 Brushless Motor 360KV - HQ1308, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
45.71	3.11	1006	142.16	7.08	4308	30%
45.69	4.65	1414	212.46	6.66	5019	35%
45.67	6.64	1848	303.25	6.09	5694	40%
45.64	8.97	2300	409.39	5.62	6367	45%
45.58	12.1	2873	551.52	5.21	7004	50%
45.54	15.44	3411	703.14	4.85	7582	55%
45.49	19.34	3981	879.78	4.53	8210	60%
45.43	24.19	4648	1098.95	4.23	8811	65%
45.35	29.45	5276	1335.56	3.95	9404	70%
45.24	36.54	6030	1653.07	3.65	9937	75%
45.17	41.97	6359	1895.78	3.35	10501	80%
45.08	48.89	7015	2203.96	3.18	11083	85%
44.95	58.92	7859	2648.45	2.97	11623	90%
44.79	70.41	8582	3153.66	2.72	12148	95%
44.56	87.39	9265	3894.1	2.38	12686	Max

GF1308, 3-blade

ECO II 5215 Brushless Motor 360KV - GF1308, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
48.15	2.6	906	125.19	7.24	4606	30%
48.14	3.79	1220	182.45	6.69	5349	35%
48.12	5.32	1580	256	6.17	6080	40%
48.09	7.25	1987	348.65	5.7	6816	45%
48.06	9.59	2430	460.9	5.27	7520	50%
48.02	12.29	2902	590.17	4.92	8192	55%
47.98	15.59	3459	748.01	4.62	8877	60%
47.92	19.48	4021	933.48	4.31	9537	65%
47.86	23.87	4605	1142.42	4.03	10182	70%
47.79	28.97	5203	1384.48	3.76	10799	75%
47.71	34.23	5756	1633.11	3.52	11414	80%
47.62	41.29	6448	1966.23	3.28	11990	85%
47.52	48.43	7129	2301.39	3.1	12567	90%
47.38	57.77	7916	2737.14	2.89	13133	95%
47.23	68.97	8650	3257.45	2.66	13721	Max

HQ1507, 3-blade

ECO II 5215 Brushless Motor 360KV - HQ1507, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.11	2.4	765	77.06	9.93	2987	30%
32.1	3.59	1039	115.24	9.02	3465	35%
32.07	5.12	1348	164.2	8.21	3942	40%
32.05	7	1690	224.35	7.53	4400	45%
32.01	9.17	2045	293.53	6.97	4853	50%
31.97	11.96	2483	382.36	6.49	5268	55%
31.93	15.2	2969	485.34	6.12	5687	60%
31.87	18.84	3430	600.43	5.71	6102	65%
31.81	22.85	3865	726.86	5.32	6517	70%
31.73	27.65	4385	877.33	5	6898	75%
31.65	32.83	4909	1039.07	4.72	7266	80%
31.57	38.34	5390	1210.39	4.45	7650	85%
31.48	44.97	5939	1415.66	4.2	8030	90%
31.36	53.27	6590	1670.55	3.94	8367	95%
31.25	61.74	7113	1929.38	3.69	8749	Max

HQ1708, 3-blade

ECO II 5215 Brushless Motor 360KV - HQ1708, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.1	3.22	1048	103.36	10.14	2916	30%
32.08	4.83	1412	154.95	9.11	3379	35%
32.05	6.91	1823	221.47	8.23	3827	40%
32.01	9.47	2284	303.13	7.53	4269	45%
31.97	12.42	2763	397.07	6.96	4686	50%
31.92	15.99	3265	510.4	6.4	5072	55%
31.86	20.03	3860	638.16	6.05	5459	60%
31.78	24.78	4451	787.51	5.65	5848	65%
31.7	30.3	5056	960.51	5.26	6222	70%
31.62	36.34	5693	1149.07	4.95	6594	75%
31.51	43.59	6303	1373.52	4.59	6913	80%
31.41	51.33	6956	1612.28	4.31	7249	85%
31.27	60.88	7585	1903.72	3.98	7565	90%
31.13	70.72	8179	2201.51	3.72	7877	95%
30.94	83.66	8801	2588.44	3.4	8183	Max

420KV

HQ1309, 3-blade

ECO II 5215 Brushless Motor 420KV - HQ1309, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.11	2.9	741	93.12	7.96	3511	30%
32.09	4.29	1001	137.67	7.27	4082	35%
32.06	6.03	1295	193.32	6.7	4635	40%
32.03	8.2	1619	262.65	6.16	5181	45%
31.99	10.72	1953	342.93	5.69	5704	50%
31.94	13.85	2348	442.37	5.31	6229	55%
31.89	17.53	2758	559.03	4.93	6741	60%
31.83	21.53	3165	685.3	4.62	7198	65%
31.75	26.17	3594	830.9	4.33	7655	70%
31.68	31.12	3996	985.88	4.05	8133	75%
31.59	37.15	4501	1173.57	3.84	8587	80%
31.5	43.42	4926	1367.73	3.6	9040	85%
31.4	50.76	5384	1593.86	3.38	9471	90%
31.28	59.23	5907	1852.71	3.19	9868	95%
31.13	69.38	6417	2159.8	2.97	10277	Max

GF1309, 3-blade

ECO II 5215 Brushless Motor 420KV - GF1309, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.11	3.21	796	103.07	7.72	3475	30%
32.09	4.81	1125	154.35	7.29	4035	35%
32.06	6.8	1473	218.01	6.76	4580	40%
32.02	9.27	1854	296.83	6.25	5113	45%
31.98	12.1	2237	386.96	5.78	5617	50%
31.93	15.42	2656	492.36	5.39	6135	55%
31.87	19.7	3162	627.84	5.04	6627	60%
31.8	24.1	3619	766.38	4.72	7086	65%
31.73	28.81	4032	914.14	4.41	7530	70%
31.64	34.42	4517	1089.05	4.15	7986	75%
31.55	40.33	4994	1272.41	3.92	8449	80%
31.45	47.48	5537	1493.25	3.71	8889	85%
31.33	56.4	6169	1767.01	3.49	9281	90%
31.2	65.44	6733	2041.73	3.3	9678	95%
31.03	77.73	7469	2411.96	3.1	10049	Max

1507, 2-blade

ECO II 5215 Brushless Motor 420KV - 1507, 2-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
32.11	2.52	731	80.92	9.03	3576	30%
32.1	3.69	1001	118.45	8.45	4160	35%
32.07	5.17	1313	165.8	7.92	4725	40%
32.05	7.05	1649	225.95	7.3	5292	45%
32.02	9.27	2016	296.83	6.79	5833	50%
31.98	11.99	2445	383.44	6.38	6369	55%
31.93	15.22	2875	485.97	5.92	6896	60%
31.88	18.77	3341	598.39	5.58	7362	65%
31.82	22.78	3799	724.86	5.24	7847	70%
31.75	27.44	4307	871.22	4.94	8327	75%
31.66	33.17	4889	1050.16	4.66	8776	80%
31.57	39.57	5458	1249.22	4.37	9218	85%
31.46	47.35	6101	1489.63	4.1	9620	90%
31.36	54.54	6538	1710.37	3.82	10053	95%
31.22	64.2	7121	2004.32	3.55	10459	Max

HQ1507, 3-blade

ECO II 5215 Brushless Motor 420KV - HQ1507, 3-blade
VoltageV	CurrentA	Thrustg	PowerW	Efficiencyg/W	SpeedRPM	Throttle%
25.06	2.49	634	62.4	10.16	2745	30%
25.04	3.68	866	92.15	9.4	3188	35%
25.02	5.2	1131	130.1	8.69	3623	40%
24.99	7.09	1424	177.18	8.04	4045	45%
24.96	9.31	1749	232.38	7.53	4456	50%
24.92	11.95	2090	297.79	7.02	4854	55%
24.88	15.07	2465	374.94	6.57	5234	60%
24.82	18.71	2869	464.38	6.18	5596	65%
24.76	22.84	3290	565.52	5.82	5974	70%
24.69	27.64	3718	682.43	5.45	6331	75%
24.62	32.89	4163	809.75	5.14	6668	80%
24.54	38.74	4652	950.68	4.89	6985	85%
24.46	45.21	5101	1105.84	4.61	7301	90%
24.36	51.82	5499	1262.34	4.36	7626	95%
24.24	59.41	5940	1440.1	4.12	7961	Max

APPLICATIONS

Recommended use

large FPVheavy-lift multirotor platforms13-17 inch propeller systemslong-endurance aerial platformsindustrial and custom aircraft projectsspecialty builds