Features Millisecond Switching Technology: Experience seamless power transition with rapid switching to ensure an uninterruptible power supply for your critical systems Immediate Backup Activation: Automatically engages backup power when the primary supply fails, guaranteeing reliable and continuous power to essential equipment Compact and Reliable Design: Enjoy a space-saving structure that simplifies installation and maintenance, providing long-lasting performance in demanding environments Superior Material Construction: Crafted from high-quality ABS, this unit offers excellent impact and scratch resistance, ensuring durability and environmental protection Enhanced Structural Stability: Benefit from a robust design that delivers outstanding performance and longevity, making it a dependable choice for power distribution control needs 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 poss compact structure, reliable transmission, convenient installation and maintenance, and long service life 4、Made of excellent ABS material, poss impact resistance, scratch resistance, environmental protection 5、Automatic transfer switch poss 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