ASCO Emerson D03ATSA20200FGXF Power Transfer Switch

ASCO Emerson D03ATSA20200FGXF is a 200 A automatic transfer switch (ATS) in the ASCO Series 300 D-frame family, designed for single‑phase 240 V service with a 50/60 Hz operating range. This open‑transition, two‑pole unit automatically transfers load power between two sources—typically utility and generator—to maintain service during source outages. It uses a weather‑resistant Type 3R enclosure suitable for outdoor installations, and the model designation D03ATSA20200FGXF identifies a 2‑pole, 200 A, 240 V ATS compatible with ASCO catalog configurations (11BE, 18RX variants) and related TAA/BAA/BABA listings. The 200 A rating and 240 V operation support standard commercial feeders, making it appropriate for applications where automatic source transfer is required to protect critical circuits in commercial or light‑industrial environments.