Automatic doublepower transfer switch for household use that automatically selects between two power sources and supports both 110V and 220V systems. Designed to keep essential circuits powered when the primary supply is interrupted and to simplify switching between utility and backup sources. Key benefits Automatic seamless switching: Detects loss of the primary supply and switches to the secondary source without manual intervention, reducing downtime for lighting and essential appliances. Prevents source conflict: Ensures only one power source is connected at a time to avoid backfeed and wiring conflicts. Simple integration with household systems: Compatible with common 110V and 220V residential installations and with typical backup generators or inverters. Compact and durable design: Sized for household distribution setups and built for longterm everyday use. Clear, practical operation: Designed for straightforward wiring and dependable performance in home power management applications. Main features and attributes Function: Automatic transfer switch for two power sources with automatic selection and switching between primary and secondary lines. Compatibility: Supports 110V and 220V household electrical systems; intended for use with mains supply and a secondary source such as a standby generator or inverter. Size and installation: Compact footprint suitable for mounting in home electrical enclosures or near distribution panels; designed for spaceefficient installation. Material and construction: Durable housing and reliable contact components for repeated switching cycles and routine household use. Performance: Reliable automatic response to power interruptions and consistent operation under typical residential loads. Practical applications Home backup power: Automatically switch a home circuit from mains to a standby generator during power outages to keep essential lights, refrigerators, and communication devices running. Remote cabin or offgrid location: Manage switching between generator and inverter or alternate feeds to maintain continuous basic power without manual rewiring. Small office or workshop: Provide an automated changeover for critical circuits when a secondary supply is available, minimizing business interruption for a limited set of equipment. What to consider before Confirm voltage compatibility with your electrical system (110V or 220V). Ensure the switch rating matches the intended circuit load and wiring configuration. Have a qualified electrician perform installation and wiring to meet local codes and ensure proper operation. This automatic doublepower transfer switch is a practical component for household power management where a reliable, hands changeover between two power sources is required.