Dual AC can be implemented at a customer site in one of the following ways:
- Two separate utility power sources
- Two separate circuit breaker panels
- Two site UPSs
Site wiring decisions should be made with an understanding of how the customer will benefit from the dual AC feature.
A site UPS is not required.
Separate Power Sources
Separate Circuit Breaker Panels
Two Site UPSs
Some customers may have two site UPSs. If so, the site can be considered as having two separate power sources.