Mains and generator dual power automatic transfer switch 4P millisecondlevel uninterruptible switching without external power supply Key benefits Fast, reliable transfer: Transfers between mains and generator in milliseconds to minimize interruption to connected loads. Selfpowered operation: Designed to operate without an auxiliary control power supply, simplifying installation and improving reliability where auxiliary power is unavailable. Full fourpole switching: 4P design provides safe, simultaneous switching of all three phases and neutral for balanced protection. Multiple current ratings: Available configurations for 25A, 63A, 80A, and 100A to match a range of load requirements. Simple integration: Intended for automatic operation with standard mains and generator sources, reducing manual intervention and downtime. Main functions and attributes Function: Automatic transfer between mains and generator power with millisecondlevel switching to maintain continuous supply to critical circuits. Compatibility: Works with standard mains and generator power systems; suitable for single generator setups and typical distribution panels. Size and configuration: 4P (fourpole) units available in 25A, 63A, 80A, and 100A ratings. Performance: Rapid switching response in the millisecond range to reduce disruption to sensitive equipment. Operation without external supply: Acts without requiring a separate control power source, providing dependable switching even when auxiliary power is absent. Typical applications Backup power for small to medium commercial premises: Keeps essential systems running during mains outages by automatically switching to generator supply. Emergency and safety systems: Supports lighting, alarms, and evacuation systems that require uninterrupted power in critical moments. Industrial and workshop equipment: Protects motors and control systems by quickly restoring power through automatic transfer to generator input. Why choose this transfer switch Minimizes downtime for critical loads through speed switching. Reduces installation complexity by eliminating the need for an external control power source. Offers flexibility with multiple current ratings and a 4P configuration to cover common threephase plus neutral systems. Provides a straightforward solution for automatic mains to generator transfer where dependable, fast switching is required. Technical summary Type: Millisecondlevel automatic dual power transfer switch for mains and generator Poles: 4P (three phases plus neutral) Current ratings: 25A, 63A, 80A, 100A Operation: Automatic switching without external control power supply Installation and safety note Install according to local electrical codes and by qualified personnel. Verify compatibility with the specific generator and mains configuration before installation.