Features Millisecond Switching for Uninterruptible Power Supply: Ensures seamless power transfer in milliseconds, providing continuous power without interruption. Immediate Backup Power Supply: Automatically activates backup power in case of abnormal main supply, ensuring uninterrupted and reliable power supply. Compact Structure and Long Service Life: Features a compact, reliable design for easy installation and maintenance, ensuring long-term performance. ABS Material: Constructed with impact and scratch-resistant ABS material for enhanced durability and environmental protection. Stable and High-Performance Automatic Transfer Switch: Offers stable structure, excellent performance, and long service life for reliable power control. Features: 1、Millisecond switching, uninterruptible power supply. Adopt flame？retardant housing with guide rail installation 2、The backup power supply will work immediately when the normal power supply is abnormal, to ensure the continuity, reliability and safety of the power supply 3、This switch possess compact structure, reliable transmission, convenient installation and maintenance, and long service life 4、Made of excellent ABS material, possess impact resistance, scratch resistance, environmental protection 5、Automatic transfer switch possess stable structure, excellent performance and long service life 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