Calex – HBC400: Rugged, Efficient Power Conversion for Demanding E-Mobility Applications (04/2025)

The Calex HBC400 is a powerful, highly efficient 4kW bidirectional DC/DC converter designed to meet the rigorous demands of industrial, agricultural, marine, mining, and other e-mobility applications. Engineered by Murata Power Solutions, this next-generation power converter is built into a compact, liquid-cooled, and IP67-rated aluminum enclosure—making it exceptionally reliable in harsh and high-vibration environments.

Key Features at a Glance

  • Bidirectional Operation
    Seamlessly switches between Buck Mode (220–440VDC to 12/24VDC) and Boost Mode (12/24VDC to 220–440VDC), enabling flexible power management and battery charging or discharging.
  • Wide Voltage Range
    Supports input voltages from 220 to 440VDC on the high side and 12VDC or 24VDC on the low side, with respective models optimized for each configuration.
  • High Efficiency
    Operates at up to 96% efficiency, ensuring minimal energy loss and reduced thermal stress.
  • Robust Digital Interface
    Equipped with SAE J1939 CAN 2.0B compliant communications, allowing advanced monitoring, control, and configuration.
  • Comprehensive Protection
    Integrated protections against over-current, short-circuit, and over-temperature ensure system safety and reliability.
  • Safety Isolation & HVIL Contacts
    Features input-to-output isolation and Amphenol Powerlok connectors with High Voltage Interlock Loop (HVIL) for enhanced electrical safety.

Built for Harsh Environments

Encased in a rugged IP67-rated aluminum housing, the HBC400 is designed for environments where dust, moisture, and vibration are constant challenges. The liquid cooling system, combined with compact dimensions (359mm x 205mm x 78mm) and a manageable weight of 6 kg, makes it easy to integrate into tight spaces.

Applications

Whether you’re electrifying an off-road vehicle, deploying mobile equipment in the field, or designing a robust energy storage system, the Calex HBC400 is the power converter you can rely on.

Typical Use Cases:

  • E-Mobility Platforms
  • Off-Highway Machinery
  • Renewable Energy Storage
  • Marine and Agricultural Equipment
  • Industrial Automation Systems

Discover the HBC400 Advantage

Experience the combination of rugged design, high efficiency, and intelligent communication. The Calex HBC400 redefines what a DC/DC power converter can deliver in performance-critical applications.