Overview

The EMAX ECOIII series 2207 brushless motor is offered in 1700KV, 1900KV, and 2400KV options. It is specified for 36S operation (depending on KV) and is designed around a 2207-class motor format for FPV multirotor builds.

Key Features

Framework: 12N14P
Bearing shaft: 4 mm
Lead: 20#AWG, 120 mm
Mounting pattern shown: 4M3, 16 mm
Shaft thread shown: M5

Specifications

ECOIII-2207 (Mechanical drawing)

Motor diameter	28.6 mm
Motor height (dimension shown)	32.8 mm
Mounting pattern	4M3, 16 mm
Shaft thread	M5
Lead length (dimension shown)	120 mm

ECOIII-2207 1700KV

Motor dimensions	Dia 28.6 32.8 mm
Framework	12N14P
Bearing shaft	4 mm
Lead	20#AWG, 120 mm
Weight	31.9 g (w/o silicone wire)
Idle current (10V)	1.2 A
Internal resistance	74 mOhm
No. of cells	36S
Propeller	5″5.5″
Peak current (6S)	42 A
Max. power (6S)	1050 W

ECOIII-2207 1900KV

Motor dimensions	Dia 28.6 32.8 mm
Framework	12N14P
Bearing shaft	4 mm
Lead	20#AWG, 120 mm
Weight	31.6 g (w/o silicone wire)
Idle current (10V)	1.5 A
Internal resistance	64 mOhm
No. of cells	36S
Propeller	5″
Peak current (6S)	50 A
Max. power (6S)	1260 W

ECOIII-2207 2400KV

Motor dimensions	Dia 28.6 32.8 mm
Framework	12N14P
Bearing shaft	4 mm
Lead	20#AWG, 120 mm
Weight	31.5 g (w/o silicone wire)
Idle current (10V)	2.1 A
Internal resistance	48 mOhm
No. of cells	34S
Propeller	5″5.5″
Peak current (4S)	45 A
Max. power (4S)	750 W

Thrust Test Data

Test propeller: EMAX AVAN5026 3-blade propeller.

ECOIII-2207-1700KV (25.2 V)

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	1.84	210	46.37	4.53	11580
25.2	3.62	350	91.22	3.84	14850
25.2	6.1	530	153.72	3.45	17970
25.2	9.42	720	237.38	3.03	20870
25.2	13.6	940	342.72	2.74	23670
25.2	18.9	1150	476.28	2.41	26100
25.2	24.4	1340	614.88	2.18	28210
25.2	31.4	1600	791.28	2.02	Max

ECOIII-2207-1900KV (25.2 V)

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
25.2	2.45	250	61.74	4.05	12760
25.2	4.82	430	121.46	3.54	16310
25.2	8.13	620	204.88	3.03	19540
25.2	12.2	850	307.44	2.76	22570
25.2	18.1	1090	456.12	2.39	25460
25.2	24.2	1300	609.84	2.13	27710
25.2	30.7	1500	773.64	1.94	29870
25.2	40.6	1800	1023.12	1.76	Max

ECOIII-2207-2400KV (16.8 V)

Voltage (V)	Current (A)	Thrust (g)	Power (W)	Efficiency (g/W)	Speed (RPM)
16.8	2.31	180	38.81	4.64	10710
16.8	4.47	300	75.10	3.99	13720
16.8	7.3	440	122.64	3.59	16390
16.8	11.1	600	186.48	3.22	18970
16.8	15.8	760	265.44	2.86	21320
16.8	21.5	930	361.20	2.57	23560
16.8	28.1	1100	472.08	2.33	25520
16.8	35.8	1300	601.44	2.16	Max

Applications

FPV 5-inch class racing and freestyle quad builds (2207 motor size)
36S multirotors (match the KV option to the specified cell count)

For build planning or compatibility questions (ESC current rating, prop choice, and battery selection), contact support@ or visit https:///.

Details

A 2207-class motor format built for responsive 5-inch FPV multirotor setups.

Dimensions and mounting details are provided for clean frame fitment, including the 1616 M3 pattern and M5 shaft thread.

Thrust test data compares the 1700KV, 1900KV, and 2400KV options using an EMAX AVAN5026 3-blade propeller.

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EMAX ECOIII 2207 Brushless Motor 3-6S – 1700KV / 1900KV / 2400KV FPV Drone Motor