Siemens W3MM2 Meter Stack Module

Siemens W3MM2 Meter Stack Module is a component in Siemens' Power Mod modular metering system that consolidates multiple meters into a single stack for centralized energy measurement. It is specified for up to 1200 A with a 100 A rating and supports 240 V and 208 V service, aligning with common commercial distribution requirements. In Siemens' meter-stack literature, such assemblies are built with a uniform design and configurable bus configurations, and meter stacks are commonly offered in 600 A or 1200 A configurations to support scalable layouts. The W3MM2 is part of Siemens' Power Mod family, intended for installations that need compact, scalable metering within a broader Siemens metering ecosystem.