High Quality: The transfer switch is made of highquality flameretardant plastic material, good insulation, high temperature , antiaging, safe and reliable.Easy to Use: The changeover switch builtin regular standby opening signal output port, which can be connected with signal indicator light, which is convenient for observation outside the cabinet.Continuous Supply: When the normal supply is abnormal, the backup supply will work immediately to the continuity, reliability and safety of the supply.Practical: The electronic circuit breaker is suitable for switching to the backup supply when the is cut off, and switching to the main supply when the comes in.Dual switch. PC level, Switch less than 8ms, no Interrupt.Only for city and Generator, not for PV system and inverter.Style:63AColour:WhiteMaterial:Plastic + MetalSize:1055 x 104 x 755mmPackage Contents:1 * Dual switchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!