Static Transfer Switch(STS) is an automatic static switching equipment designed to transfer critical loads between two independent AC power sources with a transfer time to ensure uninterrupted power availability when a power outage occurs. When the first circuit fails, STS automatically switches to Read More

4 pole STS are usually used for 3P4W system where the neutral is also switched when transitioning from source 1 to source 2. Each pole represents an individual switch contained in the breaker, which corresponds to a different wire or phase of electricity. 4-pole device can protect four circuits.3 po Read More

STS(Static Transfer Switch) in mobile data center, is an automatic static switching equipment designed to transfer critical loads between two independent AC power sources without interruption or with a transfer time to ensure permanent power availability when a power outage occurs in order. A Mobile Read More