H21 Mid-drive motor
Overview
H21 Mid-drive motor from our manufacturing partner. Rated power 800-1500 W, rated speed 1500-3500 rpm. Full specifications and engineering dimensions are listed below.
- Size: N/A
- Category: C motor
- Rated power: 800-1500 W
- Rated speed: 1500-3500 rpm
- Full specifications & dimensions below
Product Views & Dimensions
Technical Specifications
Motor Parameters
| Working voltage (V) | 48-72 |
| Rated power (W) | 800-1500 |
| Peak power (W) | 3000-4000 |
| Rated speed (rpm) | 1500-3500 |
| Peak torque (N.m) | ≥30 |
| Peak efficiency (%) | ≥90 |
| Protection level (IP) | 67 |
| Sensor type | Hall/Magnetic encoder |
| Temperature detection | PT1000/Optional |
| Insulation level | H |
Motor Size
| Installation hole diameter | 4-M8 |
| Height from sprocket center to mounting end face | 18.2 |
| Maximum outer diameter of contour | Φ172 |
| Maximum height of contour | 171 |
| Installed width | 129/49 |
| End shaft outside diameter | Φ17 (Customizable) |
| Internal spline parameters | 6*14*17*4 Rectangular key (Customizable) |
| Model of paired sprocket wheel | 420-14T/Optional |
Frequently Asked Questions
What voltage is this motor rated for?
This motor is rated for 48-72V operation. Please confirm your battery pack voltage matches before ordering.
What is the rated and peak power of this motor?
The rated power is 800-1500W, and peak power reaches 3000-4000W for short-duration high-load operation.
What are the speed and torque ratings?
Rated speed is 1500-3500rpm; peak torque is >=30N.m. Actual performance depends on the controller settings and the load.
What is the protection level of this motor?
The motor is rated IP67, so it is protected against dust and water ingress to that level when the housing and connectors are properly sealed.
Which position sensor does this motor use?
It uses a HALL/MAGNETIC ENCODER position sensor, providing accurate rotor position feedback for smooth and efficient operation.
Can the specification be changed for bulk orders?
This model is supplied as a standard catalog product with fixed specifications – the motor itself cannot be modified. If you need a different voltage or power rating, we can recommend an alternative model from the same series. Please send us your target specification and we will advise the closest option.
Need a Quote?
Contact DUNE for pricing, samples and customization.