Are San Ace IP68 Splash Proof Fans Suitable for Energy Storage Cabinets and EV Chargers? Advantages and Selection Guide

With the rapid growth of renewable energy and power electronics, energy storage systems and EV chargers are evolving toward higher power density, outdoor deployment, and long-term continuous operation. As a result, thermal management systems are facing increasingly demanding environmental challenges, including exposure to rain, dust, humidity, and condensation.

Under such conditions, high-protection cooling solutions—especially IP68-rated Splash Proof Fans—have become a key focus for engineers. This article analyzes whether San Ace IP68 Splash Proof Fans are suitable for energy storage cabinets and EV chargers, and explores their practical advantages and selection considerations.

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1. Environmental Challenges in Energy Storage and EV Charging Systems

Energy storage cabinets and EV chargers are typically installed in harsh environments with the following characteristics:

1.1 Outdoor or Semi-Outdoor Deployment

Devices are exposed to rain, dust, and high humidity over long periods.

1.2 High Power Density

Concentrated power components generate significant heat, requiring efficient cooling.

1.3 Condensation Risks

Temperature fluctuations between day and night can cause internal condensation.

1.4 Continuous Operation

Systems often run 24/7, requiring highly reliable cooling components.

Traditional cooling fans with low protection ratings are often insufficient for these demanding conditions.

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2. What Is an IP68 Splash Proof Fan?

San Ace Splash Proof Fans are designed to operate reliably in environments exposed to water and dust.

Key Design Features:

Resin-Coated Electrical Components

The motor coils and electronic circuits are coated with resin, forming a sealed structure that prevents water and dust from entering live electrical components.

Compliance with IEC 60529

An IP68 rating means:

• Complete protection against dust
• Protection against long-duration water immersion

It is important to note that the IP rating applies only to electrical components (motor coils and electronics). Mechanical parts such as blades, frames, and bearings are not included, so additional system-level protection is still necessary in high-moisture environments.

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3. Key Performance Features of San Ace 9WPA IP68 Series

Taking the 120 × 120 × 25 mm 9WPA series as an example, it offers a wide range of performance options:

3.1 High Airflow and Static Pressure

• Maximum airflow up to 148 CFM
• Maximum static pressure up to 210 Pa

Suitable for high-density systems with complex airflow paths.

3.2 Multiple Voltage Options

• Available in 12V and 24V versions
• Compatible with different system architectures

3.3 PWM Speed Control

Selected models support PWM control, enabling dynamic speed adjustment based on system temperature.

3.4 Long Lifetime

• Up to 40,000 hours at 60°C
• Designed for stable long-term operation

3.5 Built-in Sensors

Pulse sensors enable speed monitoring and system diagnostics.

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4. Advantages in Energy Storage Cabinet Applications

Energy storage cabinets integrate battery modules, BMS, and power electronics, requiring robust cooling solutions.

Key Benefits:

Strong Moisture and Condensation Resistance

Maintains stable operation in humid environments, reducing electrical risks.

Excellent Dust Protection

Prevents dust ingress into critical components, extending fan life.

Suitable for High-Density Cooling

High airflow and pressure meet compact system requirements.

Improved System Reliability

Reduces maintenance frequency and operational risks.

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5. Advantages in EV Charger Applications

For EV chargers, especially DC fast chargers, thermal performance directly impacts charging efficiency and safety.

Key Benefits:

Reliable Operation in Harsh Outdoor Conditions

Maintains performance under rain, dust, and temperature fluctuations.

Support for Modular Cooling Design

Ideal for multi-module architectures with independent cooling paths.

Reduced Failure Rate

Minimizes water ingress-related electrical failures.

Energy Efficiency and Noise Optimization

PWM control allows adaptive operation based on load conditions.

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6. Key Selection Considerations

While IP68 protection is critical, proper fan selection should also consider:

6.1 Airflow Requirements

Match airflow (CFM) to system heat dissipation needs.

6.2 Static Pressure

Ensure sufficient pressure to overcome airflow resistance from heat sinks and filters.

6.3 Voltage and Control

Select appropriate voltage (12V or 24V) and determine whether PWM control is required.

6.4 Mechanical Integration

Optimize fan placement and airflow paths to avoid inefficiencies.

6.5 System-Level Protection

Combine fans with sealing structures and breathable membranes for enhanced protection.

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7. Typical Application Scenarios

San Ace IP68 Splash Proof Fans are widely used in:

• EV charging systems
• Energy storage systems
• PV inverters
• Outdoor digital signage
• Industrial automation equipment

These applications share common requirements for high protection and long-term reliability.

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As energy storage systems and EV chargers continue to evolve toward outdoor, high-power applications, cooling solutions must go beyond basic performance and address environmental durability.

San Ace IP68 Splash Proof Fans, with their sealed electrical design and strong airflow performance, provide a reliable solution for harsh operating conditions. When combined with proper system-level design, they significantly enhance overall equipment stability and lifespan.

For engineers, selecting the right Splash Proof Fan is not just about specifications—it is about ensuring long-term, reliable operation in real-world environments.