| 1 | Motor Type | QS Motor 4000W 138 90H Mid Drive Motor | |
| 2 | Rated Power | 4000W | |
| 3 | Rated Voltage | 72v DC | |
| 4 | Max. No-load RPM | 6500RPM | |
| 5 | Max Efficiency | ≥93% | |
| 6 | Max Torque | ≥80nm | |
| 7 | Motor phase angle | 60 | |
| 8 | No. of Pole Pairs | 5 | |
| 9 | Short-term overload | Support long time operation at 2 times the rated power | 3 times overload operation time, less than 1 min |
| 10 | Current Limit | <200A | |
| 11 | Winding Temperature | Class F should be no more than 150℃ | Class H supports 180℃ |
| 12 | Sensor type | Hall Sensor and Encoder | |
| 13 | Cross Section of Phase Wire | ≥16m㎡ | |
| 14 | Insulation class | Class F | |
| 15 | Motor weight | 12.8kg | |
| 16 | Thermic Probe | Optional | |
| 17 | Waterproof Grade | IP67 | |
| 18 | Work system | S9 | |
| 19 | Cooling method | Water Cooling |
Name: Robert Chen
Mobile：
Tel：0086-13456357532
Whatsapp：0086-15857348767
Email：info@qs-motor.com
Add：NO.2555 Shugang Road, Luqiao Dist., Taizhou, Zhejiang, China 318058
