Features Millisecond Switching: Ensures uninterrupted power supply with immediate backup activation in case of abnormal primary power supply, providing continuous, reliable, and safe power. Compact and Reliable: Compact structure, reliable transmission, and easy installation and maintenance, ensuring long service life and dependable performance. High-Quality Material: Constructed from ABS material, providing impact resistance, scratch resistance, and environmental protection for long-lasting use. Flame-Retardant Housing: Features flame-retardant housing with guide rail installation for a stable structure and excellent performance. Power Continuity: The automatic transfer switch guarantees stable power distribution control, enhancing power supply continuity and reliability. Features: 1、Millisecond switching, uninterruptible power supply, flame-retardant housing with guide rail installation 2、When the normal power supply is abnormal, the backup power supply will work immediately to ensure the continuity, reliability and safety of the power supply 3、The product has compact structure, reliable transmission, convenient installation and maintenance, and long service life 4、Made of good？quality ABS material, possess impact resistance, scratch resistance, environmental protection 5、Automatic transfer switch come with stable structure, excellent performance and long service life Specification: Item Type: Automatic Transfer Switch Shell Material: ABS Rated Working Voltage: 230V 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