Drawing on years of experience in medical power supply solutions, here are several key selection considerations:
Basic Standard Differentiation: Medical power supplies must primarily comply with the IEC 60601-1 safety standard for medical equipment, distinguishing them from general-purpose ITE power supplies under IEC 62368. For international exports, it's also essential to differentiate between versions—testing requirements differ between the fourth and third editions.
Insulation and Voltage Withstand Ratings: Medical-grade power supplies require reinforced insulation, with higher voltage withstand ratings between live (L/N) and ground (FG), as well as between input and output. Leakage current is a critical parameter, especially for life-supporting devices such as ventilators and patient monitors, where leakage current limits are strictly regulated.
Global Market Certification Requirements: For domestic sales, compliance with China’s relevant medical standards is required. For export to North America, UL 60601 certification is needed; for Japan, PSE; for the EU, CE (LVD + EMC); for Brazil, INMETRO; certain Middle Eastern markets may require GCC certification; and China requires GB9706. It is crucial to confirm early in the selection process whether the power supplier can provide the necessary certifications to avoid clearance issues later.
Environmental Protection and Continuous Operation Capability: In applications involving prolonged continuous operation, prioritize power supplies designed for wide temperature ranges. For portable IVD devices or home healthcare equipment, adapters with appropriate protection ratings should be selected.
