Dual power automatic transfer switch models WATSG800A/500A/4A and WATSG800A/630A/4A Overview Automatic transfer switch designed for reliable, hands transfer between two power sources. Available models: WATSG800A/500A/4A and WATSG800A/630A/4A to match different system requirements. Key benefits Continuous power availability: automatic detection and switching ensure rapid transfer between sources to minimize or eliminate power interruption. Protection against improper transfer: mechanical and electrical interlocking prevents simultaneous closing of both sources, reducing risk of short circuit during transfer. Greater uptime and lower maintenance: stable design and smooth contact switching reduce wear and extend service life. Flexible deployment and future proofing: modular architecture supports a variety of functional modules for easy expansion and to meet evolving needs and improve conversion efficiency. Core features Switch type: dual power automatic transfer switch for seamless source selection and automatic changeover. Automation: automatic detection of supply status and automatic switching to maintain power continuity without manual intervention. Interlocking protection: combined mechanical and electrical interlocks avoid unsafe simultaneous connection of both supplies. Multiple protection functions: builtin protections monitor switching behavior and reduce risk to downstream equipment. Durable operation: engineered contact mechanisms provide stable switching action and long operational life. Modularity: supports plugin or replaceable functional modules to add monitoring, control, or communication capabilities as required. Performance and compatibility Capacity options: offered in models with rated configurations WATSG800A/500A/4A and WATSG800A/630A/4A to fit different load and control requirements. Designed for integration into dual supply architectures, such as mains and generator systems, or two independent utility feeds. Suitable for electrical panels, switchgear lines, and industrial control cabinets where automated source transfer is required. Typical applications Commercial buildings and office complexes: maintain lighting, HVAC, and critical systems during mains interruptions by switching to backup power. Industrial and manufacturing sites: protect production lines and control systems from unexpected supply loss and reduce the risk of costly downtime. Telecommunications and network facilities: ensure uninterrupted power to communication equipment and routers by switching between primary and secondary power feeds. Why choose this switch Reduces operational risk by automating transfers and preventing unsafe source overlap. Lowers lifecycle costs through robust switching mechanics and reduced maintenance frequency. Simplifies upgrades and specialized configurations via a modular design that accommodates different functional modules. Ordering information Select the model that matches your system current and control needs: WATSG800A/500A/4A or WATSG800A/630A/4A.