Product Name: Distribution BoxModel Number: 3SDB-1MPlace of Origin: China3SDB-1M distribution system is suitable for AC 50/60Hz circuits, rated voltage up to AC 660V, and rated current up to 125A.Ideal for distributing control of modern building such as large office buildings, hotels, department stores, industrial and mining enterprises. It can protect electric appliances from overload voltage and current as well as provide added protection for short and frequent on/off switches under normal operating conditions. It is one of the most reliable general distribution systems in the world.