How to Wire Automatic & Manual Changeover & Transfer Switch? – Single & Three Phase How to Wire Single Phase Manual Transfer / Changeover Switch In fig 2, different connection and wiring diagrams are shown for a two pole, single phase manual changeover switch. The upper portion of the changeover switch is directly connected to the main power supply while the lower first and right connections slots are connected to the backup power supply like generator or inverter. The left side of lower slots are connected to the main board as load. • Disconnect the power source before servicing, repairing or installing electrical equipments. • Use the proper cable in size with this simple calculation method () • Never try to work on electricity without proper guidance and care. • Work with electricity only in presence of those persons who has good knowledge and practical work and experience who know how to deal with electricity.

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• Read all the instructions, user manuals, cautions and follow them strictly. • Doing your own electrical work is dangerous as well as illegal in some areas.Contact the licensed electrician or the power supply company before practicing any change in connection. • The author will not be liable for any losses, injuries, or damages from the display or use of this information or if you try any circuit in wrong format. Be careful because it’s all about electricity and electricity is too dangerous. If you are still facing difficulties to wire the UPS and batteries with changeover and ATS switches,, please leave a comment in the below comment box and I will be there to assist you more in details.