Features With high-quality flame retardant plastic material, good insulation, high temperature resistance, anti-aging, safe and reliable. Built-in regular standby opening signal output, which can be connected to a signal indicator, which is convenient for observation outside the cabinet. Suitable for switching to the emergency power supply when the power supply is interrupted, and for switching to the main power supply when the power supply is in. If the normal power supply is abnormal, the emergency power supply works immediately to ensure the continuity, reliability and safety of the power supply. The use of silver contacts can significantly improve the conductivity and life of the product. Specification: Item type: dual power automatic transfer switch. Model: ZGQ5-100/4P Material: plastic. Purpose: switch to the emergency power supply when the power fails, and switch to the main power supply when the power arrives Working frequency: 50-60Hz Rated current: 100 A. Rated voltage: AC110-230V. Operating voltage: AC 220 V. Operating mode: automatic and manual ATS: CB Level Conversion time: ≤0.05 (S). Number of poles: 4P. Package list: 1 x automatic dual power switch. 1 x user manual (English language not guaranteed). Package List 1 x Dual Power Automatic Transfer Switch 1 x User Manual