Sieyuan DC Switch-Disconnectors Achieve CSA/AS Certifications, Expanding Global Market Coverage

SHANGHAI, July 30, 2026 /PRNewswire/ -- Sieyuan's low-voltage DC switch-disconnector products have recently achieved CSA/AS certifications. Following prior UL, IEC, EN, and GB certifications, Sieyuan's complete low-voltage DC switch portfolio now adds CSA and AS — two further...