SPD, Overvoltage Protector, Dual Power Automatic Transfer Switch manufacturer / supplier in China, offering ATS 400V 125A 3p Automatic Transfer Switch DIN Rail Dual Power Changeover for Solar City Power Generator Uninterrupted, Industrial Adjustable EU Power Protector Socket with Overcurrent Protection Adjustable Current Trip Setting for Workshop Machinery, DC 2p Series PV Surge Protector (SPD) 500V-1000V High Voltage DC Protection for Solar Arrays From Lightning & Surges and so on.