Name: EMAX PRO Series PRO-2808 Brushless Motor 1350KV/1500KV/1900KV, 5-7in Props, 3-6S Options
SKU: WKA86610369283
Availability: InStock

Description
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Overview

EMAX PRO Series PRO-2808 Brushless Motor for multirotor/FPV drone builds, offered in 1350KV, 1500KV, and 1900KV options. This motor is specified for 5″-7″ propellers, with cell-count support depending on KV (3-6S for 1350KV/1500KV; 3-4S for 1900KV).

Key Features

Precision bearing
Steel shaft
Anodizing
19 x 19 mm hole pattern
Multi-strand winding
250 mm 18 AWG silicone wire

Specifications

Mechanical

Model	PRO-2808
Framework	12N14P
Motor dimensions	33.2 x 37.3 mm
Length	37.3 mm
Diameter	33.2 mm
Bearing shaft	4 mm
Prop adapter shaft thread	M5
Shaft thread	CW
Mounting	4 x M3; 19 mm pattern; Dia 19
Lead	18 AWG, 250 mm
Recommended propeller	5″-7″

Electrical (by KV option)

KV option	No. of cells	Idle current (10V)	Internal resistance	Peak current	Max power	Weight (W/O silicone wire)
1350KV	3-6S	1.4A	53 mohms	59A (6S)	1480W (6S)	50.7 g
1500KV	3-6S	1.6A	46 mohms	62A (6S)	1550W (6S)	50.7 g
1900KV	3-4S	2.2A	35 mohms	58A (4S)	970W (4S)	50.4 g

Performance Data

PRO-2808-1350KV (25.2V)

Gemfan7040 3-blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.3	300	57.96	5.18	8290
25.2	6.7	700	168.84	4.15	12160
25.2	10	960	252.00	3.81	14100
25.2	15.5	1310	390.60	3.35	16290
25.2	22.6	1640	569.52	2.88	18140
25.2	31.2	2120	786.24	2.70	20100
25.2	41.4	2520	1043.28	2.42	21600
25.2	51	2780	1285.20	2.16	Max

AVAN7040 3-blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.2	290	55.44	5.23	9120
25.2	6.1	670	153.72	4.36	13400
25.2	8.6	870	216.72	4.01	15200
25.2	12.2	1150	307.44	3.74	17300
25.2	17.8	1510	448.56	3.37	19600
25.2	24.8	1890	624.96	3.02	21700
25.2	33.2	2280	836.64	2.73	23600
25.2	40.8	2570	1028.16	2.50	Max

HQ 7 x 3.5 x 3 blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.3	300	57.96	5.18	7930
25.2	6.9	720	173.88	4.14	11740
25.2	10.8	1020	272.16	3.75	13800
25.2	16.6	1400	418.32	3.35	16200
25.2	24.1	1770	607.32	2.91	17890
25.2	32.5	2170	819.00	2.65	19800
25.2	42.5	2550	1071.00	2.38	21300
25.2	56.7	2760	1428.84	1.93	Max

HQ 7 x 4 x 3 blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.4	310	60.48	5.13	7550
25.2	7.4	740	186.48	3.97	11320
25.2	12.2	1070	307.44	3.48	13370
25.2	18.3	1460	461.16	3.17	15430
25.2	26.9	1810	677.88	2.67	17100
25.2	35.7	2220	899.64	2.47	18840
25.2	46.6	2590	1174.32	2.21	20200
25.2	58.5	2820	1474.20	1.91	Max

PRO-2808-1500KV (25.2V)

Gemfan7040 3-blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.8	350	70.56	4.96	8890
25.2	8.4	820	211.68	3.87	13100
25.2	12.6	1110	317.52	3.50	15090
25.2	19.5	1500	491.40	3.05	17350
25.2	28.9	1990	728.28	2.73	19500
25.2	39.4	2410	992.88	2.43	21200
25.2	51	2690	1285.20	2.09	22800
25.2	61.4	2920	1547.28	1.89	Max

AVAN7040 3-blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.7	350	68.04	5.14	9850
25.2	7.7	800	194.04	4.12	14590
25.2	10.8	1030	272.16	3.78	16420
25.2	15.4	1340	388.08	3.45	18550
25.2	22.9	1780	577.08	3.08	21140
25.2	31.7	2170	798.84	2.72	23170
25.2	41.4	2520	1043.28	2.42	25100
25.2	51.5	2760	1297.80	2.13	Max

PRO-2808-1900KV (16.8V)

Gemfan7040 3-blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
16.8	2.7	240	45.36	5.29	7520
16.8	8.1	570	136.08	4.19	11100
16.8	11.6	760	194.88	3.90	12660
16.8	17.7	1030	297.36	3.46	14620
16.8	25.4	1340	426.72	3.14	16510
16.8	34.5	1620	579.60	2.80	18020
16.8	45.1	1940	757.68	2.56	19520
16.8	56.2	2300	944.16	2.44	Max

AVAN7040 3-blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
16.8	2.6	240	43.68	5.49	8300
16.8	7.4	560	124.32	4.50	12640
16.8	10.1	710	169.68	4.18	13840
16.8	14.1	920	236.88	3.88	15650
16.8	20.3	1190	341.04	3.49	17700
16.8	27.5	1490	462.00	3.23	19580
16.8	36.5	1790	613.20	2.92	21320
16.8	45.2	2080	759.36	2.74	Max

HQ 7 x 3.5 x 3 blade propeller

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
16.8	2.8	250	47.04	5.31	7230
16.8	8.4	590	141.12	4.18	10730
16.8	12.5	800	210.00	3.81	12350
16.8	19.1	1100	320.88	3.43	14320
16.8	26.8	1410	450.24	3.13	16160
16.8	36.5	1710	613.20	2.79	17640
16.8	47.1	2010	791.28	2.54	19200
16.8	57.8	2320	971.04	2.39	Max

Whats Included

5 x M3 x 10 screw
5 x M3 x 8 screw
1 x Aluminum M5 nylock nut
1 x Washer and screw for shaft

Applications

Multirotor / FPV drone propulsion setups using 5″-7″ propellers (per motor KV and supported cell count)

For installation or selection support (KV, prop, and voltage matching), contact [email protected] or visit https://rcdrone.top/.

Details

Precision dimension and mounting layout for the PRO-2808, including the 1919 mm hole pattern and 250 mm 18 AWG wire length.

Performance data for the 1350KV option at 6S (25.2V) across multiple 7″ tri-blade propellers to help compare thrust and efficiency.

6S performance reference for the 1500KV motor using Gemfan 7040 and AVAN 7040 tri-blade propellers.

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EMAX PRO Series PRO-2808 Brushless Motor 1350KV/1500KV/1900KV, 5-7in Props, 3-6S Options