Features： 1、FLAME RETARDANT MATERIAL: Made of good quality flame retardant plastic materials, has good insulation, high temperature resistant, aging resistant, safe and reliable 2、SILVER CONTACTS IMPROVE CONDUCTIVITY: The use of silver contacts in this product can greatly improve the conductivity and service life of the product, convenient to use 3、WITHOUT INTERRUPTION: When the normal power supply is abnormal, the backup power supply works immediately, which ensures the continuity, reliability and safety of the power supply 4、EXQUISITE CRAFTSMANSHIP: Isolation and interference resistant, self casting and self duplexing, bring stable performance, you can use with confidence 5、WIDE APPLICATIONS: Support millisecond switching, manual or automatic, possess a wide range of applications contain families, shopping malls, factories, farms, etc. Specification： Item Type: Dual Power Automatic Transfer Switch Product Model: NLQ4-125/4P Switch Type: Secondary power distribution Rated Current: 100A Rated Voltage: 400V AC Rated Frequency: 50Hz/60Hz Electrical Grade: PC grade Rated Impulse Withstand Voltage: 8kV Package List： 1 x Dual Power Automatic Transfer Switch