WBLF‑2002‑HS14002 600V High Voltage Fan | Hydrogen Truck Cooling

As hydrogen fuel cell heavy-duty trucks enter large‑scale commercial use, high‑voltage platforms, high‑power cooling, IP67 protection, and long service life have become essential requirements for thermal management systems.

The WBLF‑2002‑HS14002 20‑inch DC high‑voltage brushless blower from Sunlight features a 600V high‑voltage architecture, IP67 protection, mutually exclusive PWM or CAN control, and a wide temperature range of -40 to +85°C, making it an ideal solution for hydrogen fuel cell tractors, dump trucks, and new energy commercial vehicles.

1. 600V High-Voltage Platform Designed for NEVs

WBLF‑2002‑HS14002 is built for 600V nominal high‑voltage DC with an operating range of 400–750V, reaching full rated speed at ≥550V to perfectly match fuel cell heavy truck electrical systems.

• Nominal voltage: 600V DC

• Operating voltage: 400–750V

• Full speed threshold: ≥550V

• Withstand voltage: 800V

• Rated current: ≤9A; 15A fuse recommended per blower

The high‑voltage design delivers stronger performance and lower losses for stable cooling under continuous heavy‑load operation.

2. High-Performance Cooling for Fuel Stacks & Motors

This 20‑inch high‑power blower provides strong airflow at 3200±50 RPM to satisfy cooling demands for fuel cell stacks, drive motors, and electronic controls.

• Rated speed: 3200±50 RPM

• Noise: ≤97 dB(A) @ 1m

• Weight: ≤13 Kg

• Start‑up time: ≤20 Sec

• Wide static pressure range: 0–800 Pa

Suitable for port tractors, long‑haul logistics trucks, and mining dump trucks.

3. IP67 & Wide Temperature for Extreme Environments

Built for harsh conditions including water, mud, dust, and extreme temperatures:

• Controller protection: IP67

• Operating temp: -40°C ~ +85°C

• Storage temp: -40°C ~ +110°C

• Derating temp: 85°C; max tolerant: 100°C

• Design life: up to 30,000 hours

Equipped with HVIL interlock, reliable grounding, and Amphenol high‑voltage connectors for full safety.

4. Control Modes: PWM or CAN

WBLF‑2002‑HS14002 supports two control modes that are mutually exclusive. Only one method can be active on a single unit.

Mode A: PWM Digital Speed Control

• Frequency: 10–1000Hz, recommended 400–600Hz

• Duty cycle: 0–100% linear control

• High-level: 10–30V; Low-level: 0–2V

• Simple wiring, cost-effective

Mode B: CAN Bus Communication Control

• Baud rate: 250K / 500K

• RPM command, status feedback, fault reporting

• Over-voltage / under-voltage / over-current / over-temperature protection

• For high-end vehicles, multi-fan systems, vehicle network

Important Note: PWM and CAN cannot be used together; they are mutually exclusive.

5. Automotive-Grade High-Voltage Safety

• Mandatory chassis grounding (M4 screw, 1–1.2Nm)

• Amphenol HVC2P high‑voltage connectors with HVIL

• Fan guard: M10 bolts, 10–12Nm torque

• Disassembly by non‑professionals is strictly prohibited