Features: 1 input 1 output 1000V DC. DC string box is designed for 1 string PV system. For surge protection and isolating at solar DC side. Lightning protection (TUV CE), waterproof and dustproof IP65. The box is supplied with: 1P fuse 30A (2 pcs). DC switch: 1000V/32A DC (1pc). DC SPD: 2P, 1000V DC (1pc). Designed for protection of photovoltaic cells. Certifications: TUV, CE, CB, RoSH. Technical specifications: Input: 1 string. Output: 1 string. Max voltage: 1000V. Max current: 32A. Enclosure material: HA. Safety class: IP65. Dimensions: 240x210x100 mm. Operating temperature: -25°C ~ +55°C.