AUTOMATIC TRANSFER SWITCH
A transfer switch is an electrical switch that reconnects electric power source from its primary source to a standby source. Switches may be manually or automatically operated.
An Automatic Transfer Switch (ATS) is often installed where a backup generator is located, so that the generator may provide temporary electrical power if the utility source fails.
As well as transferring the load to the backup generator, an ATS also commands the backup generator to start, based on the voltage monitored on the primary supply. The transfer switch isolates the backup generator from the electric utility, when the generator is on and is providing temporary power.
Reliably transfer loads to emergency sources with automatic transfer switches and non-automatic transfer switches.
Auto changeover switch's are best used in unmanned or remote operations and are more efficient way to operate between different power sources
Generator automatic transfer switch are the most common in industry but these can be used in applications where houses have a main grid supply and a battery back up system to give isolation from one source to the other manual transfer switches are more common in this situation
4 pole ATS is common for the Generator supply and 3 pole ATS for the main supply
New Zealand Automatic Transfer Switches Click Here for Selection Chart