Siemens SB2 2500A WLL2F325 Main Switchboard Type 1

Siemens SB2 2500A WLL2F325 Main Switchboard Type 1 is a front-connected, indoor distribution panel engineered for high-capacity 3‑phase service at 480/277 V. Built around the WL insulated-case platform, the WLL2F325 assembly integrates a 3‑pole main circuit breaker (ETU776) and is rated for 2,500 A with a 100 kA short‑circuit current rating at 480 V, making it suitable as a primary distribution point in demanding facilities. This Type 1 enclosure is designed for indoor installations, with front-access operation that simplifies service and maintenance in switchgear rooms or utility spaces. Typical applications include serving large commercial or industrial loads, data centers, manufacturing floors, and other facilities where a single, robust main switchboard must feed downstream distribution panels or bus ducts. The model designation WLL2F325 identifies a 3‑pole, 2,500 A configuration with fixed mounting, providing a compact yet capable solution for centralized protection and control, and it aligns with Siemens SB front-connected switchboard families that emphasize modularity, integrated protection, and compatibility with downstream feeder devices. If your project requires a scalable main distribution unit with a dedicated main breaker and 480/277 V three‑phase capability, this SB2/WLL2F325 combination delivers a proven Siemens solution for reliable power distribution.