Specifications General Product Type: Automatic Transfer Switch (ATS) Series: WTS Series Model Designation: WTS63/4DL Number of Poles: 4 (Three phases + Neutral) Rated Current: 63 A Application: Automatic switching between two independent AC power sources for three‑phase systems Electrical Ratings Rated Operational Voltage: Suitable for low‑voltage AC distribution systems (commonly 400 V for three‑phase configurations) Rated Frequency: 50/60 Hz Control Voltage: Built‑in control logic for automatic/manual operation Type of Service: Alternating current supply transfer in three‑phase distribution Operational Features Automatic Power Sensing: Detects loss of primary source and initiates transfer to alternate source Manual Mode: Allows operator control when automatic function is disabled Control Interface: Integrated status indicators and control panel for operation visualization Switching Logic: Pre‑programmed logic to ensure safe and reliable transfer with adjustable conditions Protection & Performance Short‑Circuit Withstand: Designed for AC‑33 utilization category Switching Time: Fast transfer operation to minimize power interruption Break Time: Typical transfer time less than 100 ms under rated conditions Insulation & Transient Protection: Engineered for electrical transient withstand in standard low‑voltage systems Mechanical & Environmental Mounting: Panel or distribution board installation LCD/Display: Equipped with LCD or LED indicators for power status and mode Operating Temperature Range: Standard industrial ambient temperature range Construction: Rugged housing for reliable performance in electrical distribution environments Functional Summary Provides automatic switching between two power sources in three‑phase systems Ensures continuous power supply with minimal interruption Supports automatic and manual modes Suitable for commercial, industrial, and critical power continuity applications