Siemens WMTB84U Meter Stack Module Tap Box 800A

Siemens WMTB84U Meter Stack Module Tap Box is an indoor, 800-amp 3-phase, 4-wire tap box designed for use with Siemens Power Mod meter centers. This 120/240 V tap box sits on the load side of a meter stack, providing safe, code-compliant terminations and distribution from an 800 A incoming bank. It carries a 100 kA RMS symmetrical fault-current rating, making it suitable for high-energy commercial and multi-tenant installations. As part of Siemens’ modular metering family, the WMTB84U integrates with other Power Mod components to form a complete meter center or service entrance configuration, enabling efficient assembly of meter stacks with downstream distribution devices. The device is specified as a Meter Stack Module Tap Box for 240 V, 3-phase, 4-wire systems, and is commonly used where a landlord or facility operator needs organized, scalable metering and load distribution within a compact footprint. The model reference (84U) denotes its specific form factor within the WMTB line, and purchase and installation should follow Siemens installation manuals to ensure proper clearance, enclosure suitability, and compliance with local electrical codes.