ruiyi motor Technical Specification Profile: Ruiyi ZL4815-L-B01
1. Overview
The Ruiyi ZL4815-L-B01 is an industrial-grade, high-torque Brushless DC (BLDC) motor designed for electric vehicles (EVs), mid-drive scooters, and heavy-duty automation.
2. Electrical & Thermal Specifications
| Feature | Specification | Engineering Context |
|---|---|---|
| Model | ZL4815-L-B01 | ZL Series; 48V; ~1.5kW Class |
| Rated Voltage | 48V DC | Optimized for 13S Li-ion or 4P Lead-Acid |
| Motor Type | BLDC (Inner Rotor) | Electronic commutation via Hall Sensors |
| Insulation Class | Class F (155°C) | High-temp tolerance for sustained heavy loads |
| Est. Power Output | 1000W - 1500W | Professional grade (NOT a toy motor) |
| Est. Rated Speed | 3000 - 3600 RPM | Requires gear reduction for vehicle use |
| Wiring | 3 Phase + 5 Hall | Standard 8-wire BLDC configuration |
3. Wiring Configuration
Phase Wires (Power)
- Colors: Yellow, Green, Blue (Heavy Gauge)
- Function: Transmits 3-phase AC power from the controller to the motor windings.
Hall Sensor Wires (Signal)
- Red: +5V DC (Power for internal sensors)
- Black: GND (Ground)
- Yellow/Green/Blue: Position signals for precise timing.
4. Engineering Analysis for Human Scooter Project
Torque vs. Speed
Unlike the 775 or Vacuum motors, this motor has a large thermal mass. It can handle high Stall Current (Locked-Rotor Current) during startup without immediate overheating, which is critical for moving a 70kg+ rider from a stop.
Gear Ratio Recommendation
To achieve a balanced top speed of ~35 km/h on 10-inch wheels, you should aim for a 5:1 or 6:1 reduction ratio.
- Motor Sprocket: 9T or 11T
- Wheel Sprocket: 54T or 60T
- Drive Type: #25 or T8F Steel Chain (Do not use plastic belts for this power level).
5. System Requirements Summary
Required Components for ZL4815 Setup:
- Battery: 48V (Minimum 15Ah - 20Ah capacity)
- Controller: 48V 30A-45A Brushless DC Controller (Sensored)
- Throttle: Hall-effect 3-wire Thumb or Twist Throttle
- Protection: 50A DC Circuit Breaker or Inline Fuse
- Cooling: Open-air mounting (Class F handles heat well, but needs airflow)
Verdict: This motor is highly recommended for a human-carrying scooter. It provides the necessary power-to-weight ratio and industrial insulation to ensure safety and longevity under load.