Features Millisecond Switching for Uninterruptible Power Supply: This automatic transfer switch ensures seamless transition to backup power within milliseconds, providing uninterrupted power supply during outages or abnormalities, enhancing operational continuity and reliability. Compact Structure with Reliable Transmission: The switch features a compact design, reliable transmission, and easy installation and maintenance, offering long-term performance and safety. Stable and Environmentally Friendly Material: Constructed from high-quality ABS material, the switch offers impact and scratch resistance, ensuring durability while being environmentally friendly. Immediate Backup Power Activation: The backup power supply activates immediately in case of a normal power supply failure, ensuring continuous and reliable power supply for Decisive operations. Stable Performance and Long Service Life: The automatic transfer switch delivers stable performance and boasts a long service life, providing reliable power control for various applications. Specification: Item Type: Automatic Transfer Switch Shell Material: ABS Rated Working Voltage: 400V AC Rated Frequency: 50Hz/60Hz Electrical Level: PC level Installation Method: DIN rail Package List: 1 x Switch 1 x User Manual Package List 1 x Switch 1 x User Manual