【Networking Power Supply】GB 20943-2025: Boosting Networking Power Efficiency NEW!

The latest energy efficiency standard released by the Standardization Administration of China (SAC), “GB 20943-2025 Minimum allowable values of energy efficiency and energy efficiency grades for AC-DC and AC-AC power supplies,” will take effect as a mandatory requirement in 2027.This standard primarily improves the overall energy efficiency of power supply products and promotes the development of high-efficiency, energy-saving power technologies.

Release date: January 24, 2025 Mandatory enforcement date: February 1, 2027

The revised standard covers a broader range of products. In addition to external power supplies (adapters), it also includes internal power supplies used in computers (PCs), servers, data storage equipment, and network communication devices. This brings both consumer-level and enterprise-grade power supplies under the regulatory scope.

Key Points of the Updated Standard

GB 20943-2025 introduces stricter requirements for energy efficiency and power consumption, including:

• Energy efficiency grading requirements: Products are classified into Grades 1, 2, and 3. Only products meeting at least Grade 3 efficiency are allowed to be sold in the market.
• Multi-load efficiency requirements: Products must meet specified efficiency targets under different load conditions, such as 10%, 20%, 50%, and 100%. The concept is similar to ENERGY STAR and ErP, although the specific constraints are not fully identical.
• Standby and no-load power consumption requirements: Stricter limits are imposed on low-power design performance.
• Power factor (PF) requirements: For high-power products, technical requirements related to their impact on grid power quality are strengthened.

Key Transformation in the Networking and Enterprise Power Supply Market

This revision of the standard indicates that China’s energy efficiency regulation for enterprise-grade and networking equipment power supplies has entered a significantly higher threshold. In the future, beyond consumer products, applications such as servers, data centers, switches, and networking equipment will place greater emphasis on high efficiency, low standby power consumption, and advanced power management capabilities.

For power supply manufacturers, product energy efficiency performance, low-power control capability, and responsiveness to international efficiency regulations will become key competitive factors in the market.

APD Proactively Builds High-Efficiency Power Design Capability

In response to the continuous tightening of global energy efficiency regulations, Asian Power Devices (APD) has already implemented high-efficiency topologies and digital power management. Most of its existing models are already capable of meeting the high-tier efficiency requirements of the new standard.

With years of technical expertise in networking power supplies, APD’s R&D team conducted a deep analysis of GB 20943-2025 at an early stage after its release and incorporated the design principles into its development guidelines. This helps customers prepare in advance for future market changes and regulatory shifts, delivering power solutions that combine high efficiency, high reliability, and compliance with international standards.