ABS series polyphase (1996 to 2002) Elster ABS series (2003 to present)	Back	Up	Next
As part of ABB's restructuring of their meter line, the D5 series of polyphase meters was simplified. The D5A series of polyphase A-base meters was dropped due to utilities upgrading A-base installations with socket adapters or replacing with new meter sockets. Also, demand registers were dropped as an option due to strong customer preference for the Alpha meter in demand applications. Lastly, the polycarbonate cover that was optional on the D5 polyphase meters became standard on the ABS meters. These continue to be manufactured on as as-needed basis under the Elster brand.	Photo by David Uy