Overview
The EMAX ECOIII series 2207 brushless motor is offered in 1700KV, 1900KV, and 2400KV options. It is specified for 3–6S 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: 4×M3, 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 |
4×M3, 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 |
3–6S |
| 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 |
3–6S |
| 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 |
3–4S |
| 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)
- 3–6S 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@rcdrone.top or visit https://rcdrone.top/.
Details