W Series Dual-power Automatic Transfer Switches HomeProductsAutomatic Transfer SwitchW Series Dual-power Automatic Transfer Switches W Series Dual-power Automatic Transfer Switches INTRODUCTIONThe W Series belong to the PC level, and include the types of W2 and WN3. Inquiry Back Out of stock., contact us Product Description FURTHER INFORMATION W-2 is a two-stage automatic transfer switch. After a switching signal is received the switch transfers power immediately from one source to the other without stopping at an OFF position in the middle. The rated current is 20A~500A.The WN3 is a three-stage automatic transfer switch. After a switching signal is received the switch transfers power immediately, or after a preset delay, or stop at an OFF position in the middle. The rated current is 20A~5000A. PARAMETERS OF W-2 STAGE TRANSFER SWITCH Isolation voltage : AC800V Impulse withstanding : 8kV Rated voltage : AC400V (AC660V/690V, DC125V/250V) Rated current : 20A, 40A, 63A, 80A, 100A, 125A, 160A, 200A, 225A, 250A, 350A, 400A, 500A Number of throws : dual throw Number of poles : 2P, 3P, 4P PARAMETERS OF W-N3 STAGE TRANSFER SWITCH Isolation voltage : AC800V Impulse withstanding : 8kV Rated voltage : AC400V Rated current : 20~63A, 80~125A, 160~250A, 350~500A, 630~800A, 1000~1250A, 1600A, 1600~2500A, 3150A, 4000A, 5000A Number of throws : dual throw Number of poles : 2P, 3P, 4P