Automotive Thermal Management Systems Manufacturer

Automotive High Voltage Electric Fan

Brushless electric fans used in high-voltage cooling system for electric vehicle (EV) and fuel cell electric vehicle (FCEV) applications

Automotive High Voltage Electric Fan
  • Automotive High Voltage Electric Fan
  • Automotive High Voltage Electric Fan

Saiensi is engaged in the innovation and production of advanced automotive thermal management solutions. Supported by a CNAS-accredited laboratory and an 80% in-house manufacturing rate, the company maintains rigorous control over materials, costs, and delivery processes. Its high-voltage DC brushless electric fans are engineered specifically for next-generation vehicle cooling systems.

High voltage electric fans are primarily used in fuel vehicles, electric vehicles, and other high-voltage electric platforms to ensure effective heat dissipation of critical components under high-temperature operating conditions.

Request a Quote

Compared with low-voltage fans, high-voltage fans typically operate above 400V with a rated power exceeding 1 kW. High-voltage fans effectively eliminate the need for voltage conversion from low-voltage systems, reduce cable costs and installation space, and meet the high cooling demands of large fuel cell systems, delivering cost savings and compact integration across the thermal system.

In terms of cooling performance, high-voltage electronic fans provide the air volume required for high-power fuel cell systems. Additionally, they can distribute power for other low-voltage devices within the system, and their higher output capacity allows a single fan to replace multiple low-voltage units, saving space and reducing wiring complexity and energy loss.

Applications
Applications
Applications
Applications
Technical Specifications
Model SES-506G SES-506G-35 SES-504G
Test Voltage 580V 580V 580V
Voltage Range 450V-650V 450V-650V 450V-650V
Load Current 0.8A±5% 0.6A±5% 1.5A±5%
Speed 1000-4100rpm±5% 800-3500rpm±5% 1200-4750rpm±5%
Max Airflow OPA 3600m³/h±5% OPA 2800m³/h±5% OPA 4300m³/h±5%
Power 500W±5% 350W±5% 870W±5%
Control Method PWM (50-500HZ) PWM (50-500HZ) PWM (50-500HZ)
Static Current 5mA 5mA 5mA
Protection Level IP67 IP67 IP67
Key Features
  • High efficiency: DC brushless fans achieve an average efficiency above 85%, far exceeding traditional AC fans (around 70%), significantly improving cooling performance and reducing energy consumption.
  • Eco-friendly operation: Complying with modern emission and ESG standards, the intelligent control system minimizes idle energy use through dynamic speed regulation.
  • Intelligent temperature control: Integrated PWM or ECU control automatically adjusts fan speed according to real-time temperature, preventing overheating and energy waste.
  • Low noise design: Optimized blade geometry and aerodynamic design reduce tonal and flow noise by up to 30%, ensuring quieter operation.
  • Extended durability: Equipped with premium NSK bearings and ADC12 die-cast aluminum housings, the fan operates reliably for 20,000–50,000 hours within a temperature range of –40 °C to 130 °C.
  • High-voltage advantage: Direct integration with fuel cell high-voltage platforms removes the need for DCDC converters, cutting energy losses by approximately 30% and lowering wiring and component costs.
Main Components
Fan blade Fan blade
Fan frame Fan frame
Motor Motor
Products
Manufacturing Base
Rubber Sealing & Vibration Isolation Products
Rubber Sealing & Vibration Isolation Products
Gas Springs
Gas Springs
Fuel Pumps (Engine Components)
Fuel Pumps (Engine Components)

The fan integrates PWM or ECU-based intelligent speed control, adjusting performance according to thermal load and eliminating unnecessary energy use. By operating directly on the fuel cell’s high-voltage platform, it removes the need for DC–DC conversion, reducing both energy loss (by about 30%) and cabling costs.