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WATSN200/4A，200A

The Schneider Electric WATSN200/4A is a 4‑pole, 200 A rated automatic transfer switch (ATS) designed to automatically transfer power between two AC power sources (such as utility mains and a backup generator) in a three‑phase electrical system.

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Specifications Parameter Specification Manufacturer Schneider Electric Product Family WATSN PC‑class Automatic Transfer Switch Model / Code WATSN200/4A (4P, 200 A) Device Type Automatic Transfer Switch (ATS) Number of Poles 4P (three phases + neutral) Rated Current (Ie) 200 A (continuous AC rating) Rated Operational Voltage (Ue) ~380/400 V AC, 50/60 Hz (three‑phase) typical for this class Network Type AC, three‑phase Utilisation Category AC‑33B (power changeover switching) typical for transfer switches in this class Controller Type Basic controller (supports automatic and manual changeover) Operating Modes Auto transfer (with/without auto‑restore), manual, mutual standby Contact Position Indicators Local mechanical/electrical indicator for source status typical Remote Signalling Optional statuses for alarms or remote monitoring varies by variant Mounting Panel / enclosure fixed mounting (installation dependent) Standards & Compliance Meets IEC 60947‑6‑1 transfer switch standards (common ATS compliance) Mechanical Endurance Designed for high endurance (e.g., tens of thousands of cycles typical for Schneider ATS ranges) Typical Applications Backup/standby power systems, mains‑generator changeover, critical load continuity