Features: 1.Excellent Pc Material: This Dual Power Automatic Transfer Switch Is Made Of Excellent Pc Material, Which Is Flame Retardant, Good Insulation, High Temperature Resistant, Anti Aging, Safe And Reliable. 2.2 Operation Modes: This Dual Power Toggle Controller Has 2 Operation Modes, Can Be Operated Automatically Or Manually, Millisecond Switching Without Power Supply, Compact Structure, Reliable Transmission. 3.35Mm Standard Din Rail Mounting: This Dual Power Changeover Switch Adopts 35Mm Standard Din Rail Mounting, Which Is Very Convenient For Installation And Maintenance. 4.Multifunctional: This Dual Power Generator Changeover Switch Can Be Used To Test Whether The Main Power Supply Or Backup Power Supply Is Normal To Ensure The Continuity, Reliability And Safety Of The Power Supply. 5.Wide Application: This Toggle Controller Changeover Switch Has A Wide Range Of Applications And Can Be Used In Factories, Shopping Malls, Nurseries And Other Places. Specification Item Type: Double Power Automatic Transfer Switch Model: Nlq5 100 2P Material: Pc Flame Retardant, Silver Insulation Voltage Ui: Ac690V 50Hz Rated Voltage Ue: Ac400V 50Hz Grade: Pc Grade Specification: 2P Rated Control Voltage Us: 220Vac 85%Us-110%Us Lifespan: Electrical: 2000 Times, Mechanical: 5000 Times Rated Short Circuit Current: 50Ka Fuse: Rt16-00-63A Rated Impulse Withstand Voltage: 8Kv Auxiliary Circuit: 2 Relays, Each Relay Has Two Sets Of Contacts, Capacity: Ac220V50Hz Le=5Y Touch Time: <50Ms Operation Transition Time: <50Ms Return Time: <50Ms Shutdown Time: <50Ms