NEN-EN-IEC 62485-2 - Safety requirements for industrial batteries.

The NEN-EN-IEC 62485-2 standard is an essential guideline for anyone working with industrial batteries and battery storage systems. This international safety standard describes how to safely design, install, operate and maintain battery systems.

Bob Hermans

Bob Hermans

27/11/2025
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For energy storage companies like Frax, compliance with this standard is an important part of working responsibly and reliably with Battery storage systems. The goal is clear: reduce risk, ensure safety and support a stable energy infrastructure.

What is the NEN-EN-IEC 62485-2 standard?

The NEN-EN-IEC 62485-2 standard establishes safety requirements for the design, installation and use of industrial battery systems. These requirements cover both fixed and mobile applications, and help prevent risks such as gas generation, fire, short circuits and electric shock. The standard is part of the broader IEC 62485 series, which focuses on the safety of batteries in a variety of applications, from domestic to industrial installations.

Scope of the standard

NEN-EN-IEC 62485-2 specifically addresses industrial batteries, including lead-acid and lithium-ion batteries, used in energy storage systems, forklifts, emergency power supplies and other industrial applications.

The standard applies not only to the batteries themselves, but also to the charging stations, ventilation systems and electrical installations to which these batteries are connected. Thus, the standard provides a complete framework for safe use of energy storage in both industrial and commercial environments.

Main safety requirements according to NEN-EN-IEC 62485-2

The safety regulations in this standard focus on preventing accidents, protecting personnel and minimizing damage to facilities. Some key points include limiting hydrogen gas generation, preventing electrical hazards and ensuring adequate ventilation.

In addition, considerable attention is paid to fire safety, emergency shutdowns and the proper disposal of electrolytic substances. There are also requirements for the structural design of battery rooms, distance between batteries and walls, and accessibility for maintenance.

Compliance with this standard contributes to system reliability and longevity, while greatly reducing the risk of failure or incident. For installers and system integrators, this means considering safety aspects such as cable thickness, ventilation capacity and emergency provisions from the design stage.

In short, the standard sets requirements for;

  • Preventing gas build-up through adequate ventilation
  • Protection against electric shock and short circuit
  • Fire safety and temperature monitoring of battery modules
  • Secure placement and access for maintenance
  • Clear marking and emergency procedures

What does NEN-EN-IEC 62485-2 mean for you as an installer or system integrator?

As an installer or system integrator, it is very important to understand how this standard affects your daily work. The guidelines help you make installations safer, more efficient and future-proof.

By following the requirements of NEN-EN-IEC 62485-2, you not only comply with legal obligations, but also demonstrate professionalism and reliability towards your customers. Moreover, compliance with the standard prevents unnecessary risks during installation and maintenance, and ensures a longer life span of the battery storage installation.

For you as an installer, this means:

  • You must consider ventilation and temperature control in battery rooms
  • Wiring, fuses and grounding must meet proper safety standards
  • A safe distance must be maintained between batteries and structural elements
  • You must clearly implement emergency procedures and warning signals
  • Documentation and periodic inspections are mandatory to ensure safety

How Frax meets safety requirements for industrial batteries

At Frax, safety, reliability and ease of use are central to the design of our Battery Energy Storage Systems. All our systems are developed according to the guidelines of NEN-EN-IEC 62485-2 and meet the highest quality and safety standards. This means that with Frax you can count on a system that is not only efficient and durable, but also complies with the applicable regulations for industrial batteries.

Our plug-and-play solutions are designed to completely unburden installers. Thanks to the integrated Frax Energy Management System (EMS), all components are automatically matched, ensuring safe operation and fast, error-free installation.

Whether it's a residential project or a large-scale industrial power system, you can rely on Frax for a safe, future-proof solution that meets the strictest standards within the industry.

This post was last updated on: 

17/11/2025

Bob Hermans

Founder & CEO

After being active in the energy market for more than a decade, I decided to found Frax in 2023. With Frax, I want to support installers with smart, plug-and-play battery storage systems that really make a difference. My passion lies in renewable energy and innovation, and I believe that simple, reliable solutions are the key to a future with more efficient energy use.

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