Siemens WML21400RJ Modular Meter Stack System

Siemens Power Mod WML21400RJ is a two‑gang, outdoor‑rated lever‑bypass meter stack designed for 120/240 V single‑phase service, delivering a 1,200 A bus rating and supporting a maximum 400 A tenant breaker per stack. The standard configuration provides two meter positions per stack, with factory‑installed breaker pairs up to 400 A/400 A; additional dual‑breaker configurations are cataloged as WML21400RJT5 through WML21400RJT9 (for example, 200 A/200 A and 200 A/250 A). Part of Siemens’ Power Mod Modular Metering family, this ringless meter stack uses a lever‑bypass design optimized for outdoor commercial installations such as multi‑tenant properties and office campuses. The enclosure footprint measures 70.38 inches in height, 23.00 inches in width, and 9.69 inches in depth, accommodating the two‑meter arrangement while maintaining a compact outdoor footprint. This robust modular solution integrates with Siemens’ broader metering ecosystem to deliver scalable, configurable commercial metering that supports a variety of service configurations in outdoor environments.