Features 1、Simpler Works: Supports both manual and auto operation as well as quick switching, which better guarantee reliable transmission. 2、Good Security: When the power supply is abnormal, the backup power supply works immediately to ensure the continuity and safety. 3、Practical Use: Allows for broad application in homes, shopping malls, factories, laboratories, farms and so on, very practical. 4、Safer for You: Adopting flame retardant plastic with great isolation performance, also enables self switching and self return. 5、Easy to Install: Specially designed for 100A AC 50Hz 60Hz, the installation of this compact transfer switch is very easy. Specification Item Type: Transfer Switch Product model: NLQ4-125/2P Switch Type: Secondary Power Distribution Rated Current: 100A Rated Frequency: 50Hz 60Hz Electrical Grade: PC grade isolation type. Package List 1 x Transfer Switch