Specification :

Brotom switch/ smArt PDU
An automatic transfer switch enables redundant UPS, backup generators, or other ac power sources to be used for a single load. Brotom Switch Power automatic transfer switches ( BTs) are recommended when no downtime from a power outage can be tolerated. Typical applications include Internet service providers, critical servers and telecom equipment, and export markets with bad power. providing unlimited redundancy using any combination of independent ( separate) ac circuits, BTs ~ The BTs Series static automatic transfer switch is for enabling the use of even asynchronous redundant power sources, such as uninterruptible power systems and generators feeding industrial controls, PLC cabinets, internet servers, telecom systems, etc. Another excellent use of the customizable ATs automatic transfer switch is for photovoltaic systems used in conjunction with dc to ac inverters and ac power generators, or the electric utility grid. The BTs Series utilizes solid-state relays with user selectable transfer times, and allows asynchronous power sources ( ac sources do not have to be in phase with each other ~ especially useful in mission-critical hospital/ dual power grid situations) .UPS systems, photovoltaic, hydro or wind turbine fed dc to ac inverters, generator-backed ac circuits, and so on. In a sense, you can compare BTS strategy with RAID strategy ( Redundant Arrays of Inexpensive Disks)