【Automatic Transfer Switch】 This dual power automatic transfer switch allows for seamless switching between the common power supply and the backup power supply. It ensures a continuous power supply during sudden power cuts, with a quick switching time of only 2 seconds. 【Safe】 Made of materials, this transfer switch is designed to withstand long-term use. It features mouth-type terminals that effectively prevent accidental touching,safety and convenience. The switch is also equipped with indicator light display for easy monitoring. 【Wide Application】 Suitable for various scenarios including elevators, surveillance systems, fire fighting equipment, and office buildings. It can also be used in larger places such as ports, terminals, banks, and mechanical plants. Its versatility makes it a practical choice for different electrical setups. 【Easy Installation】 With a compact design and wall-mounting installation, this transfer switch is easy to se-t up. It has a standard installation dimension of 128mm x 118mm and a hole size of MWhether for individual use or as part of a distribution box, it offers a hassle-free installation process.