WATSNA-250/250-3CBR-X - Schneider - Products - Easy Semiconductor Technology (Hong Kong) Limited 易擇半導體科技(香港)有限公司

WATSNA-250/250-3CBR-X

The Schneider Electric WATSNA-250/250-3CBR-X is a dual-power automatic transfer switch (ATS) designed for three-phase electrical systems.

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Specifications General Product Type: Automatic Transfer Switch (ATS) Model: WATSNA-250/250-3CBR-X Configuration: 3P (three-phase) Number of Poles: 4 (three phases + neutral) Rated Current: 250A per source Application: Automatic switching between two power sources for power continuity Mounting: Fixed installation in switchgear, distribution panels, or control systems Electrical Ratings Rated Operational Voltage (Ue): 380–400V AC, 50/60Hz (standard for industrial three-phase power systems) Rated Insulation Voltage: 690V AC Rated Impulse Withstand Voltage (Uimp): 8kV Short-Circuit Withstand Capacity: 50kA peak Rated Frequency: 50/60Hz Rated Current: 250A per source (model suffix “250” indicates current rating) Performance & Functions Automatic Transfer Function: Automatically switches between two independent power sources, ensuring uninterrupted power supply to critical equipment Manual Override: Allows the operator to manually select the power source Status Indicators: Visual or remote indicators showing the current active power source Fault Handling: Provides protection for transfer failures and electrical faults, with automatic retry mechanisms Remote Monitoring and Control: Supports integration with remote control systems and remote diagnostics Mechanical & Environmental Housing: Designed for integration in panel or switchboard installations Degree of Protection: IP40 (front face) Operating Temperature Range: Typically -5°C to +40°C Cable Connections: Screw or clamp terminals for secure and easy electrical connections Mounting: Suitable for DIN rail or front-panel installation