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On March 28, 2026, Phoenix Electric announced that its QUINT4 PLUS POWER intelligent switch power supply series has obtained dual certification for EN 50155 (rail transit) and UL 62368-1 (information technology equipment). This development is particularly significant for industries involved in rail transit, industrial automation, and OEM manufacturing for global markets. The certification underscores the growing importance of compliance with international standards in these sectors, especially for companies aiming to expand their presence in overseas markets.
The QUINT4 PLUS series, known for its wide temperature range (-40°C to +70°C), dynamic power margin, and pre-diagnostic data output, has been designated by international giants like Siemens and Alstom for use in next-generation signal power supplies and PLC power modules. Chinese OEM clients looking to export must ensure their overall machine designs meet the electromagnetic compatibility and safety distance requirements of both standards.
The dual certification directly benefits rail transit equipment manufacturers by providing a compliant power supply solution that meets stringent international standards. This reduces the burden of additional testing and certification for end products, potentially accelerating time-to-market for new rail systems.
For industrial automation providers, the certification offers a reliable power solution that can operate in extreme conditions, crucial for harsh industrial environments. The pre-diagnostic features also align with the growing trend of predictive maintenance in Industry 4.0 applications.
OEM manufacturers targeting international markets, particularly in North America and Europe, now have a certified component that simplifies compliance with regional standards. This is especially relevant for Chinese manufacturers looking to expand their global footprint.
Companies using or considering the QUINT4 PLUS series should verify that their overall system designs align with both EN 50155 and UL 62368-1 requirements, particularly regarding electromagnetic compatibility and safety spacing.
Integrating this certified component into existing supply chains may require adjustments to ensure seamless compatibility with other system elements. Early testing and validation are recommended.
For businesses competing in international markets, leveraging this dual-certified component could enhance product positioning and competitiveness, especially in regions with strict regulatory requirements.
From an industry perspective, this dual certification represents more than just a product milestone—it signals a shift toward global standardization in critical infrastructure components. While the immediate impact is clear for Phoenix Electric's clients, the broader implication is the raising of the bar for power supply solutions in rail and industrial applications worldwide. The industry should monitor how this development influences certification trends and competitor responses in the coming months.
The dual certification of Phoenix Electric's QUINT4 PLUS series marks a significant step forward in power supply solutions for rail transit and industrial automation. It provides a clear benchmark for quality and compliance in these sectors, particularly for companies with global aspirations. Currently, this development is best understood as both a practical solution for immediate compliance needs and a indicator of evolving international standards in industrial power systems.
Primary source: Phoenix Electric official announcement dated March 28, 2026. Additional context from industry standard documentation for EN 50155 and UL 62368-1. Ongoing observation recommended for implementation cases and market adoption patterns.
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