Features Fast Switching Technology: Millisecond switching ensures an uninterruptible power supply, providing seamless during power outages Instant Backup Activation: The backup power source activates immediately upon detecting an irregularity in the normal supply, guaranteeing continuous power Compact and Reliable Design: Features a compact structure for easy installation and maintenance, ensuring dependable power distribution for various applications 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