["Function: In case of power failure (testing only normal phase A voltage and reserve phase A voltage, testing only loss voltage or loss phase), it automatically connects one or more load circuits from one power to the other power to ensure normal state power supply of load circuits", "EPS fire power supply: This automatic switch has taken over the EPS fire power supply interface, DC12-24V can reliably transmit colon over long distances", "Automatic and manual: This automatic switch not only supports automatic mode, but can also be operated with a manual button, simpler operation and reliable performance", "Safety: Complete protection function, short circuit, overload, phase absence, undervoltage protection", "Easy installation: Reasonable structure, small size, equipped with protective cover, the power supply is easy to install and reliable"]
