Wenzhou Posder Technology Co., Ltd. is a wholesale supplier, manufacturer and factory of high-quality electrical equipment, including our 4-Pole Manual Changeover Switch. Our switch is designed to transfer power supply from one source to another, making it an essential component for backup power systems. It has a robust construction with heavy-duty copper contacts, ensuring long-lasting durability and reliable performance during power outages. Our 4-Pole Manual Changeover Switch has a simple and easy-to-use design that allows users to manually switch between power sources with ease, making it ideal for use in residential, commercial, and industrial settings. It also features an external handle for easy operation and a compact design that makes it easy to install. At Wenzhou Posder Technology Co., Ltd., we take pride in producing high-quality electrical equipment that meets the needs of our customers. Our 4-Pole Manual Changeover Switch is no exception, as it provides an efficient, reliable, and cost-effective solution for power transfer needs. Contact us today to learn more about our products and how we can help meet your specific requirements.