Introduction
EC-A6408-P2-30.25HB is the brake (holding) version with a 30Nm holding brake that maintains position when powered off. At a 30.25:1 reduction ratio it reaches 83Nm peak torque, with dual-encoder closed-loop, multiple control modes and built-in protection.
1.2 Performance Parameters, Measured Data and Characteristic Curves
EC-A6408-P2-30.25HB Performance Parameters
Item | Unit | Value |
Reduction Ratio |
| 30.25 |
Rated Voltage | V | 48 |
Rated Bus Current | A | 5.8 |
Rated Phase Current | A | 8.5 |
Rated Input Power | W | 278.4 |
Rated Speed | RPM | 110 |
Rated Torque | Nm | 17.3 |
Allows Continuous Torque | Nm | 16.5 |
Peak Speed | RPM | 127 |
Peak Phase Current | A | 40 |
Peak Torque | Nm | 83 |
Brake Torque | Nm | 30 |
Efficiency |
| 75% |
Torque Constant | Nm/A | 2.2 |
Weight | g | 950 |
Backlash | Arcmin | 18 |
Motor Size | mm | 88×73 |
Hole Diameter | mm | 7 |
Communication Mode |
| CAN |
Communication Baud Rate |
| 1M |
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 | 74 |
Peak Torque Density | Nm/kg | 87.4 |
Measured Data - Torque Characteristics
Voltage V | Bus Current A | Input Power W | Torque Nm | Phase Current A | Speed RPM | Efficiency | Torque/Phase Current |
48V | 0.16 | 7.68 | 0.4 | 1.08 | 0 | 0 | 0.37 |
| 0.18 | 8.64 | 2.3 | 1.65 | 0 | 0 | 1.39 |
| 0.2 | 9.6 | 4.4 | 2.47 | 0 | 0 | 1.78 |
| 0.26 | 12.48 | 6.7 | 3.6 | 0 | 0 | 1.86 |
| 0.32 | 15.36 | 8.8 | 4.43 | 0 | 0 | 1.99 |
| 0.36 | 17.28 | 10.8 | 5.23 | 0 | 0 | 2.07 |
| 0.41 | 19.68 | 12.3 | 5.79 | 0 | 0 | 2.12 |
| 0.47 | 22.56 | 13.7 | 6.34 | 0 | 0 | 2.16 |
| 0.55 | 26.4 | 15.9 | 7.19 | 0 | 0 | 2.21 |
| 0.63 | 30.24 | 18 | 8.06 | 0 | 0 | 2.23 |
| 0.72 | 34.56 | 19.2 | 8.55 | 0 | 0 | 2.25 |
| 0.85 | 40.8 | 22.2 | 9.64 | 0 | 0 | 2.30 |
| 0.98 | 47.04 | 24.6 | 10.53 | 0 | 0 | 2.34 |
| 1.12 | 53.76 | 26.5 | 11.36 | 0 | 0 | 2.33 |
| 1.29 | 61.92 | 29.1 | 12.47 | 0 | 0 | 2.33 |
| 1.52 | 72.96 | 31.3 | 13.47 | 0 | 0 | 2.32 |
| 1.63 | 78.24 | 32.7 | 14.13 | 0 | 0 | 2.31 |
| 1.88 | 90.24 | 35.3 | 15.2 | 0 | 0 | 2.32 |
| 2.03 | 97.44 | 36.7 | 15.82 | 0 | 0 | 2.32 |
| 2.16 | 103.68 | 37.7 | 16.32 | 0 | 0 | 2.31 |
| 2.54 | 121.92 | 41.1 | 17.73 | 0 | 0 | 2.32 |
| 2.8 | 134.4 | 42.8 | 18.48 | 0 | 0 | 2.32 |
| 3.13 | 150.24 | 45.5 | 19.55 | 0 | 0 | 2.33 |
| 3.54 | 169.92 | 47.7 | 20.68 | 0 | 0 | 2.31 |
| 4.01 | 192.48 | 50.1 | 21.81 | 0 | 0 | 2.30 |
| 4.25 | 204 | 51.1 | 22.31 | 0 | 0 |
|
| 4.9 | 235.2 | 53.8 | 23.77 | 0 | 0 | 2.26 |
| 5.54 | 265.92 | 55.9 | 25.09 | 0 | 0 | 2.23 |
| 6.15 | 295.2 | 57.5 | 26.19 | 0 | 0 | 2.20 |
| 6.7 | 321.6 | 59.3 | 27.29 | 0 | 0 | 2.17 |
| 7.35 | 352.8 | 61.2 | 28.42 | 0 | 0 | 2.15 |
| 8.62 | 413.76 | 63.1 | 30.31 | 0 | 0 | 2.08 |
| 9.86 | 473.28 | 65.3 | 32 | 0 | 0 | 2.04 |
| 11.49 | 551.52 | 67.2 | 33.92 | 0 | 0 | 1.98 |
| 17.03 | 817.44 | 69.4 | 39.54 | 0 | 0 | 1.76 |
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 | 1.02 | 25.02 | 1.9 | 125.78 | 1.1 | 51% | 1.73 |
| 1.69 | 51.68 | 4 | 123.39 | 2.67 | 64% | 1.50 |
| 2.4 | 77.75 | 6.1 | 121.73 | 3.05 | 67% | 2.00 |
| 3.33 | 104.55 | 8.4 | 118.86 | 4.8 | 65% | 1.75 |
| 3.53 | 127.53 | 10.4 | 117.11 | 5.39 | 75% | 1.93 |
| 4.1 | 150.46 | 12.5 | 114.95 | 5.97 | 76% | 2.09 |
| 4.97 | 175.38 | 14.9 | 112.41 | 7.85 | 74% | 1.90 |
| 5.83 | 196.42 | 17 | 110.34 | 8.56 | 70% | 1.99 |
| 6.18 | 215.31 | 19 | 108.22 | 8.16 | 73% | 2.33 |
| 6.91 | 236.13 | 21.2 | 106.37 | 9.8 | 71% |
|
| 7.48 | 256.48 | 23.5 | 104.23 | 11.07 | 71% | 2.12 |
| 7.91 | 272.78 | 25.6 | 101.76 | 11.95 | 72% | 2.14 |
| 8.55 | 286.92 | 27.5 | 99.64 | 12.98 | 70% | 2.12 |
| 9.07 | 305.56 | 30 | 97.27 | 13.7 | 70% | 2.19 |
| 9.95 | 320.09 | 32.3 | 94.64 | 15.03 | 67% | 2.15 |
| 10.33 | 334.71 | 34.4 | 92.92 | 16.08 | 68% | 2.14 |
| 10.93 | 348.02 | 36.7 | 90.56 | 17.28 | 66% | 2.12 |
| 11.48 | 359.69 | 38.7 | 88.76 | 18.53 | 65% | 2.09 |
| 12.27 | 370.12 | 41 | 86.21 | 19.59 | 63% | 2.09 |
| 12.45 | 376.62 | 43.1 | 83.45 | 20.64 | 63% | 2.09 |
| 13.48 | 383.69 | 45.4 | 80.71 | 21.73 | 59% | 2.09 |
| 13.91 | 388.40 | 47 | 78.92 | 22.32 | 58% | 2.11 |
| 15.02 | 391.93 | 49.1 | 76.23 | 25.55 | 54% | 1.92 |
| 15.84 | 395.88 | 51.2 | 73.84 | 24.99 | 52% | 2.05 |
| 16.12 | 401.25 | 53.4 | 71.76 | 29.42 | 52% | 1.82 |
| 17.21 | 406.84 | 55.6 | 69.88 | 31.35 | 49% | 1.77 |
| 17.42 | 410.39 | 57.5 | 68.16 | 27.21 | 49% | 2.11 |
| 18.13 | 411.14 | 59.4 | 66.1 | 32.89 | 47% | 1.81 |
| 19.19 | 414.27 | 61.3 | 64.54 | 34.68 | 45% | 1.77 |
| 20.48 | 415.40 | 63.1 | 62.87 | 33.93 | 42% | 1.86 |
| 20.93 | 416.76 | 64.8 | 61.42 | 36.07 | 41% | 1.80 |
| 21.56 | 415.71 | 66.5 | 59.7 | 37.73 | 40% | 1.76 |
| 22.76 | 408.96 | 68.7 | 56.85 | 38.38 | 37% | 1.79 |
| 23.54 | 394.44 | 71.1 | 52.98 | 43.7 | 35% | 1.63 |
| 21.47 | 315.75 | 72.8 | 41.42 | 42.65 | 31% | 1.71 |
| 20.11 | 200.62 | 75.7 | 25.31 | 39.09 | 21% |
|
| 15.06 | 35.17 | 78.3 | 4.29 | 40.2 | 5% | 1.95 |
1.3 Stall Torque Curve

1.4 Load Speed Curve

Stall Temperature Rise Time (30°C -> 100°C)
Torque (Nm) |
| Time (S) |
|
|
|
|
|
17.3 |
| Continuous use |
|
|
|
|
|
18.7 |
| 13min |
|
|
|
|
|
19.3 |
| 4min30s |
|
|
|
|
|
20 |
| 3min56s |
|
|
|
|
|
20.3 |
| 2min30s |
|
|
|
|
|
22.6 |
| 1min30s |
|
|
|
|
|
24.3 |
| 60s |
|
|
|
|
|
27 |
| 30s |
|
|
|
|
|
30 |
| 19s |
|
|
|
|
|
35 |
| 11s |
|
|
|
|
|
Constant Load Speed Temperature Rise Time (30°C -> 100°C)
Speed (RPM) |
| Torque (Nm) |
|
|
| Time (S) |
|
|
|
50 |
| 16.5 |
|
|
| Continuous use |
|
|
|
|
| 19 |
|
|
| 9min |
|
|
|
|
| 21 |
|
|
| 4min30s |
|
|
|
|
| 22.8 |
|
|
| 3min |
|
|
|
|
| 23.6 |
|
|
| 2min30s |
|
|
|
|
| 25.8 |
|
|
| 1min30s |
|
|
|
|
| 27.8 |
|
|
| 48s |
|
|
|
|
| 30.1 |
|
|
| 30s |
|
|
|
|
| 36 |
|
|
| 10s |
|
|
|