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Vehicle Auxiliary Fuel Cell System – 2 kW

The HYCUS XB2 is a vehicle-mounted, non-propulsion auxiliary power unit (APU) based on an air-cooled hydrogen fuel cell, designed to supply clean and reliable onboard electricity.

Rated power output of 2.0 kW (Max. 2.5 kW), optimized for low-power auxiliary and mobile applications.

Closed-cathode air-cooled architecture enabling moisture-free operation without external humidification.

Reliable operation in sub-zero environments, addressing durability limitations of conventional air-cooled fuel cells.

Designed for direct vehicle integration, supporting 48 V battery systems, CAN bus communication, and automotive-grade power interfaces.

Quiet, low-vibration, and zero local emissions, making it suitable for urban, indoor, and noise-sensitive environments.

Compatible with high-purity hydrogen (≥ 99.9%) supplied from an external hydrogen tank.

Ideal for commercial vehicles, special-purpose vehicles, and hydrogen mobility platforms requiring compact, zero-emission auxiliary power.

Key Features

2 kW Rated Auxiliary Power

Designed for vehicle-mounted non-propulsion power supply, with up to 2.5 kW peak output.

Air-Cooled, Closed-Cathode Fuel Cell Architecture

No external humidifier required, reducing system complexity and improving reliability.

Sub-Zero Operability

Capable of operation down to –35 °C, addressing a major limitation of conventional air-cooled fuel cells.

Vehicle-Ready Integration

Compatible with 48 V battery systems, automotive-grade power connectors, and CAN Bus communication.

Quiet & Low-Vibration Operation

Ideal for urban, indoor, and noise-sensitive environments where diesel generators are unsuitable.

High Hydrogen Purity Compatibility

Designed for ≥ 99.9% hydrogen concentration, supplied from external hydrogen tanks.

Fast Start-Up

Automatic start/stop with start-up time ≤ 80 seconds.

Outdoor Installation Design

Intended for external mounting on vehicles or mobile platforms

Technical Specifications

Performance

Rated Power: 2.0 kW

Max. Power: 2.5 kW

Voltage Range: 56 ± 2 Vdc

Exhaust Gas: Water vapor, hydrogen, and mixed gas

Battery (not included): 48 V battery

Fuel Type: Hydrogen

Inlet Pressure: 1.5 – 3 bar(g)
Hydrogen Consumption: 65 – 70 g/kWh
Hydrogen Feed: From external H₂ tank
Hydrogen Concentration: ≥ 99.9%

Operation & Maintenance

Start/Stop: Automatic (time, voltage, and current controlled)

Start-Up Time: ≤ 80 seconds

IP Rating: Test in progress (Target minimum: IP24)

Physical

Mass: Approx. 80 kg

Dimensions (L × W × H): 1,126 × 460 × 493 mm

Communication: CAN Bus

Hydrogen Connection: Quick-connect fitting

Power Connection: Electric vehicle–type power connector

Vibration (test in progress):

Target: 5–500 Hz
Vertical: 1.08 g
Longitudinal: 0.76 g
Horizontal: 0.21 g, 1 hr

Environmental Operating Conditions

Operating Temperature: –35 °C to +35 °C

Start-Up Temperature: –20 °C to +35 °C

Installation Location: Outdoor only

Vehicle Auxiliary Fuel Cell System - 2.0 kW

Vehicle Auxiliary Fuel Cell System – 2 kW

Technical Specifications

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