As the new energy industry continues to evolve toward higher voltages, greater power density, and higher system integration, applications ranging from wind and solar power to energy storage systems (ESS), electric vehicles (EVs), and EV charging infrastructure are operating at increasingly higher DC voltages and current levels. As a result, circuit protection has become more critical than ever.

A short circuit or overcurrent event can lead to equipment shutdown, reduced system efficiency, battery thermal runaway, costly equipment damage, or even serious safety hazards. Selecting the right fuse for each application is therefore essential to ensuring system reliability and operational safety.

However, the electrical requirements of different new energy applications—including operating voltage, rated current, breaking capacity, and environmental conditions—vary significantly. Managing separate fuse selections for each scenario increases engineering complexity, development costs, and project timelines.

To address these challenges, CHNBEL has developed a comprehensive fuse solution covering the entire new energy value chain. From power generation and energy storage to end-use applications, CHNBEL provides a complete DC circuit protection portfolio designed to deliver safer, more reliable, and more efficient system protection.

• One Product Portfolio for the Entire New Energy Ecosystem

CHNBEL's new energy fuse portfolio is designed for a wide range of applications, including:Battery packs、Wind and solar power generation systems、PV combiner boxes、Energy Storage Converters (PCS)、PV string protection、DC fast charging stations

Supporting voltage ratings from DC250V to DC1500V and current ratings from hundreds of amperes up to 3000A, CHNBEL offers a complete product matrix that simplifies component selection across multiple applications, enabling OEMs and system integrators to streamline product development with a single-source solution.

1. Battery Pack Protection

Battery packs are at the core of electric vehicles and energy storage systems, operating under high charge and discharge currents that demand fast response, high current-carrying capability, and exceptional reliability.

For low-voltage battery applications, CHNBEL offers the EVN6112–6121 Series, specifically designed for EV battery packs, ESS battery packs, and low-voltage DC systems.

Key Features:Rated Voltage: DC250V、Rated Current: 250A–700A、Optimized for new energy battery pack protection、High-current carrying capability、Effective protection against short-circuit and overcurrent faults

2. Wind & Solar Power Generation

Renewable energy generation systems are often deployed in harsh outdoor environments, including extreme temperatures, high humidity, dust, and strong winds, requiring long-term operational reliability.

The ESH5319–5323 Series supports DC1000V and DC1250V systems, providing dependable protection for wind turbines, photovoltaic power stations, inverter systems, and front-end generation modules.

Typical Applications:Wind power equipment、Solar power plants、Power station inverter systems、Front-end power generation modules

3. PV Combiner Boxes & Energy Storage PCS

As energy storage systems move toward higher capacities and higher DC voltages, combiner boxes and Power Conversion Systems (PCS) must withstand greater fault currents and increasingly demanding operating conditions.

CHNBEL provides a complete portfolio of high-voltage fuses, including the ESH7054–7067, ESH5574–5587, and ESH9012–9020 Series, delivering reliable protection for large-scale energy storage systems, high-voltage DC equipment, PCS, and PV combiner boxes.

Key Features:Operating Voltage up to DC1500V、Current Range: 100A–3000A、Maximum Breaking Capacity: 250kA

4. PV String Protection

Photovoltaic systems are continuously exposed to UV radiation, high temperatures, humidity, and other harsh outdoor conditions, making dependable circuit protection essential.

The PV15 Series is specifically engineered for photovoltaic applications, providing reliable overcurrent and short-circuit protection for PV strings and related equipment.

Typical Applications:PV modules、PV string circuits、Combiner boxes、Solar inverter systems

5. DC Fast Charging

With the rapid expansion of electric mobility, DC fast charging infrastructure is evolving toward higher charging power, making robust circuit protection increasingly important.

The EVN9006–9010 Series is designed specifically for DC1000V fast charging systems, protecting charging equipment and electric vehicles while improving overall system reliability.

Typical Applications:DC fast charging stations、Ultra-fast charging systems、High-power EV charging equipment.

• One Solution. Complete Protection.

From wind and solar power generation to battery packs, energy storage PCS, combiner boxes, PV strings, and DC fast charging infrastructure, CHNBEL has established a comprehensive fuse portfolio covering the entire new energy industry.

Certified to international standards including UL, CE, and RoHS, CHNBEL fuses deliver outstanding protection performance, high breaking capacity, and long-term reliability, making them suitable for demanding new energy applications worldwide.

One integrated product portfolio. One simplified selection process. Complete circuit protection across the entire new energy value chain.

If you would like to receive the complete product selection guide or request evaluation samples, feel free to contact us. Our technical team is ready to provide professional product information and application support.