Advanced AC Motor Speed Control: 36v 48v , Max Current Handling 400A with A5S Motor Controller
Product Overview:
Introducing the A5S series, an advanced solution for controlling AC motors in various vehicle applications. Engineered with cutting-edge technology, it delivers exceptional power, precision, and reliability.
With patented innovations, the A5S series ensures extended lifespan and enhanced performance. Its advanced vector control and motor identification technology enable seamless torque management across diverse speed ranges.
Versatile Applications:
Ideal for a wide range of utility vehicles, including buggies, golf carts, electric cars, pallet trucks, and forklifts.
Key Features:
Comprehensive Functionality
- Wide operating frequency range from 0 to 300Hz.
- Capable of delivering up to 400A output across 36-72V system voltages.
- Supports advanced braking and control features for enhanced safety and efficiency.
- Employs advanced vector control algorithm for optimized torque and efficiency.
- Allows for easy motor characterization without removal, ensuring compatibility with all AC motor brands.
- Includes automatic temperature compensation and remote calibration for seamless operation.
- Utilizes advanced PWM techniques for reduced motor harmonics and enhanced efficiency.
Robust Safety and Reliability
- Features an insulated metal substrate power base for superior heat dissipation and increased reliability.
- Utilizes patented architecture for enhanced reliability and shoot-through capability.
- Equipped with dual microprocessors for maximum functional safety performance.
- Includes reverse polarity and short circuit protections for added safety.
- Comprehensive fault detection function with support for various fault scenarios.
- Sealed to IP65 standards for protection against dust and water ingress.
Simple & Flexible Integration
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Customizable programming to suit diverse EV OEM requirements.
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Compatible with PC Windows programming and offers intuitive diagnostic tools.
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Equipped with a buzzer alarm for instant diagnostics and fault identification.
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Supports CANbus and CANopen protocols for seamless integration.
Specifications
Content | Parameters |
Model | A5S-4401 | A5S-4351 |
Nominal Input Voltage | 36/48 | 36/48 |
2 Min RMS Current Rating (Arms) | 400A | 350A |
60 Min RMS Current Rating (Arms) | 175A | 150A |
Sensor | Incremental encoder |
Communication | CAN / Serial |
Operating Temperature | -30℃~55℃ |
Storage Temperature | -40℃~85℃ |
Insulation | 10MΩ Insulation resistance, 0.05mA leakage @ DC 500V In/Out on casing. |
IP Rating | IP65 |
Efficiency | 97% |
Cooling | Self-cooled |
Vibration Standard | GB/T2423 |
Control Method | IFO Vector |
Heatsink Requirement | Installed in well-ventilated or an air cooling system is required |
Motor Type | AC Induction Motor |
Typical Applications

Dimensions
