Introduction
EC-A6408-P2-30.25H adopts a high 30.25:1 reduction ratio, delivering 70Nm peak torque within an 88-flange size, with a 7mm hollow bore. Dual-encoder closed-loop control, multiple control modes, wide speed-control bandwidth and precise position control, plus built-in protection.
1.2 Performance Parameters, Measured Data and Characteristic Curves
EC-A6408-P2-30.25H Performance Parameters
Item | Unit | Value |
Reduction Ratio |
| 30.25 |
Rated Voltage | V | 48 |
Rated Bus Current | A | 8.17 |
Rated Phase Current | A | 10.3 |
Rated Input Power | W | 392.16 |
Rated Speed | RPM | 123 |
Rated Torque | Nm | 20 |
Allows Continuous Torque | Nm | 15 |
Peak Speed | RPM | 128 |
Peak Phase Current | A | 30 |
Peak Torque | Nm | 70 |
Efficiency |
| 69% |
Torque Constant | Nm/A | 2.45 |
Weight | g | 846 |
Backlash | Arcmin | 18 |
Motor Size | mm | 88×65 |
Communication Mode |
| CAN (optional CANFD) |
Communication Baud Rate |
| 1M/5M |
Structural Parameters
Item | Unit | Value |
Double Encoder |
| Yes |
Cross Roller Bearing Type |
| 6005 |
Axial And Radial Loads | KN | 2.63 |
Bending Moment Resistance | Nm | 78 |
The Rotor Inertia Of The Motor | kgmm² | 63 |
Peak Torque Density | Nm/kg | 82.7 |
Measured Data - Torque Characteristics
Voltage V | Bus Current A | Input Power W | Torque Nm | Phase Current A | Speed RPM | Efficiency | Torque/Phase Current |
48V | 0.09 | 4.32 | 0.3 | 0.34 | 0 | 0 | 0.88 |
| 0.11 | 5.28 | 3.3 | 1.64 | 0 | 0 | 2.01 |
| 0.13 | 6.24 | 4.8 | 2.3 | 0 | 0 | 2.09 |
| 0.14 | 6.72 | 6.7 | 2.98 | 0 | 0 | 2.25 |
| 0.17 | 8.16 | 8.1 | 3.45 | 0 | 0 | 2.35 |
| 0.18 | 8.64 | 9.8 | 4.04 | 0 | 0 | 2.43 |
| 0.22 | 10.56 | 11.2 | 4.62 | 0 | 0 | 2.42 |
| 0.26 | 12.48 | 12.9 | 5.23 | 0 | 0 | 2.47 |
| 0.32 | 15.36 | 14.2 | 5.7 | 0 | 0 | 2.49 |
| 0.33 | 15.84 | 15.3 | 6.08 | 0 | 0 | 2.52 |
| 0.39 | 18.72 | 17.1 | 6.66 | 0 | 0 | 2.57 |
| 0.48 | 23.04 | 18.9 | 7.31 | 0 | 0 | 2.59 |
| 0.54 | 25.92 | 20.5 | 7.84 | 0 | 0 | 2.61 |
| 0.68 | 32.64 | 23.2 | 8.79 | 0 | 0 | 2.64 |
| 0.78 | 37.44 | 25.4 | 9.58 | 0 | 0 | 2.65 |
| 0.82 | 39.36 | 26 | 9.82 | 0 | 0 | 2.65 |
| 0.94 | 45.12 | 27.9 | 10.63 | 0 | 0 | 2.62 |
| 1.09 | 52.32 | 30 | 11.42 | 0 | 0 | 2.63 |
| 1.16 | 55.68 | 31.4 | 11.95 | 0 | 0 | 2.63 |
| 1.34 | 64.32 | 33.5 | 12.79 | 0 | 0 | 2.62 |
| 1.55 | 74.4 | 35.5 | 13.5 | 0 | 0 | 2.63 |
| 1.62 | 77.76 | 37.5 | 14.23 | 0 | 0 | 2.64 |
| 1.93 | 92.64 | 39.5 | 15.07 | 0 | 0 | 2.62 |
| 2.29 | 109.92 | 41.7 | 16.16 | 0 | 0 | 2.58 |
| 2.76 | 132.48 | 43.9 | 17.24 | 0 | 0 | 2.55 |
| 2.8 | 134.4 | 44.8 | 17.64 | 0 | 0 | 2.54 |
| 3.11 | 149.28 | 46.3 | 18.36 | 0 | 0 | 2.52 |
| 3.57 | 171.36 | 48.3 | 19.25 | 0 | 0 | 2.51 |
| 3.84 | 184.32 | 50.6 | 20.28 | 0 | 0 | 2.50 |
| 4.54 | 217.92 | 53.2 | 21.65 | 0 | 0 | 2.46 |
| 5.8 | 278.4 | 57.2 | 23.76 | 0 | 0 | 2.41 |
| 6.32 | 303.36 | 59.1 | 24.79 | 0 | 0 | 2.38 |
| 6.97 | 334.56 | 60.8 | 25.64 | 0 | 0 | 2.37 |
| 7.46 | 358.08 | 62.5 | 26.44 | 0 | 0 | 2.36 |
| 8.42 | 404.16 | 65.4 | 28.14 | 0 | 0 | 2.32 |
| 10.39 | 498.72 | 66.8 | 29.77 | 0 | 0 | 2.24 |
Measured Data - Torque-Speed (T-N) Curve
Voltage V | Bus Current A | Output Power W | Torque Nm | Speed RPM | Phase Current A | Efficiency | Torque/Phase Current |
48V | 0.59 | 7.87 | 0.6 | 125.21 | 1.07 | 28% | 0.56 |
| 1.14 | 17.03 | 1.3 | 125.08 | 1.79 | 31% | 0.73 |
| 1.07 | 31.46 | 2.4 | 125.18 | 1.64 | 61% | 1.46 |
| 1.2 | 39.36 | 3 | 125.3 | 1.78 | 68% | 1.69 |
| 1.82 | 58.96 | 4.5 | 125.12 | 2.58 | 67% | 1.74 |
| 2.33 | 77.28 | 5.9 | 125.09 | 3.16 | 69% | 1.87 |
| 2.79 | 90.26 | 6.9 | 124.93 | 3.82 | 67% | 1.81 |
| 3.18 | 109.78 | 8.4 | 124.81 | 4.21 | 72% | 2.00 |
| 3.58 | 128.04 | 9.8 | 124.77 | 4.83 | 75% | 2.03 |
| 4.18 | 135.64 | 10.4 | 124.55 | 5.49 | 68% | 1.89 |
| 4.33 | 150.03 | 11.5 | 124.59 | 5.7 | 72% | 2.02 |
| 5.02 | 168.02 | 12.9 | 124.39 | 6.5 | 70% | 1.98 |
| 5.24 | 178.46 | 13.7 | 124.4 | 6.93 | 71% | 1.98 |
| 6.13 | 202.51 | 15.6 | 123.97 | 7.89 | 69% | 1.98 |
| 6.69 | 216.26 | 16.7 | 123.67 | 8.63 | 67% | 1.94 |
| 7.35 | 242.51 | 18.8 | 123.19 | 9.67 | 69% | 1.94 |
| 8.17 | 254.77 | 19.8 | 122.88 | 10.3 | 65% | 1.92 |
| 8.63 | 269.28 | 21 | 122.46 | 11.21 | 65% | 1.87 |
| 9.13 | 300.84 | 23.6 | 121.74 | 11.92 | 69% | 1.98 |
| 10.2 | 327.55 | 26 | 120.31 | 13.19 | 67% |
|
| 11.28 | 347.41 | 28 | 118.49 | 15.09 | 64% | 1.86 |
| 12.28 | 359.75 | 29.5 | 116.46 | 16.48 | 61% | 1.79 |
| 13.3 | 376.88 | 31.6 | 113.9 | 16.93 | 59% | 1.87 |
| 13.45 | 401.73 | 35.5 | 108.07 | 21.38 | 62% | 1.66 |
| 13.81 | 405.51 | 36.4 | 106.39 | 26.32 | 61% | 1.38 |
| 15.71 | 409.79 | 38.3 | 102.18 | 17.91 | 54% | 2.14 |
| 16.96 | 414.32 | 41.8 | 94.66 | 19.93 | 51% | 2.10 |
| 15.56 | 409.26 | 43.5 | 89.85 | 36.03 | 55% | 1.21 |
| 17.89 | 393.88 | 46.6 | 80.72 | 21.08 | 46% | 2.21 |
| 21.28 | 386.92 | 48.1 | 76.82 | 38.72 | 38% | 1.24 |
| 19 | 363.27 | 52.7 | 65.83 | 17.2 | 40% | 3.06 |
| 19.4 | 298.14 | 56.9 | 50.04 | 34.7 | 32% | 1.64 |
| 15.57 | 267.14 | 58.1 | 43.91 | 28.64 | 36% | 2.03 |
| 8.81 | 0.28 | 67.3 | 0.04 | 30.06 | 0% | 2.24 |
| 10.16 | 0.14 | 69.1 | 0.02 | 30.54 | 0% | 2.26 |
| 8.98 | 0.00 | 70.8 | 0 | 30.05 | 0% |
|
1.3 Stall Torque Curve

1.4 Load Speed Curve

Stall Temperature Rise Time (30°C -> 100°C)
Torque (Nm) |
| Time (S) |
|
|
|
|
|
20 |
| Continuous use |
|
|
|
|
|
22 |
| 31min02s |
|
|
|
|
|
23.5 |
| 7min40s |
|
|
|
|
|
25 |
| 4min50s |
|
|
|
|
|
28.5 |
| 2min31s |
|
|
|
|
|
30 |
| 43s |
|
|
|
|
|
31 |
| 28s |
|
|
|
|
|
Constant Load Speed Temperature Rise Time (30°C -> 100°C)
Speed (RPM) |
| Torque (Nm) |
|
|
| Time (S) |
|
|
|
50 |
| 15 |
|
|
| Continuous use |
|
|
|
|
| 16 |
|
|
| 26min38s |
|
|
|
|
| 18 |
|
|
| 4min40s |
|
|
|
|
| 20 |
|
|
| 3min27s |
|
|
|
|
| 22 |
|
|
| 1min49s |
|
|
|
|
| 25 |
|
|
| 52s |
|
|
|
|
| 28 |
|
|
| 30s |
|
|
|
|
| 30 |
|
|
| 23s |
|
|
|
|
| 35 |
|
|
| 12s |
|
|
|