400A 4P Automatic Transfer Switch for Generator, Three Phase, AC220V, Continuous Power Supply

Product overview Dual power automatic transfer switch ATS 400A 630A 4P with AC220V control for generator and mains switching. Designed to manage automatic transfer between utility supply and generator sets for three phase systems with neutral. Key benefits Ensures continuous power: automatically switches loads between mains and generator when the supply changes, reducing downtime and manual intervention. Clear compatibility: 4P design supports three phase plus neutral systems and pairs with standard genset controllers that use AC220V control voltage. Scalable capacity options: available for rated currents of 400A or 630A to match a range of distribution and load requirements. Reliable power management: built as a dedicated controller and switch module to provide consistent, repeatable transfer operations for standby power setups. What this product does Function: automatic transfer of electrical load between two power sources, typically utility and generator. Control voltage: AC220V for the transfer control circuits. Poles and rating: 4P configuration supporting three phase plus neutral; offered in 400A and 630A current ratings. Role: acts as the primary transfer interface for gensetbased backup systems and dual supply installations. Why customers choose this type of unit Minimizes interruption to equipment and operations by initiating transfers automatically on loss or restoration of mains power. Simplifies integration with existing generator sets and distribution panels because of standard 4P configuration and AC220V control compatibility. Provides a clear capacity choice to match load demands without oversizing or underpowering the transfer switch. Key attributes Function: automatic transfer between utility and generator sources. Compatibility: suitable for three phase distribution systems and common genset controllers operating at AC220V control voltage. Performance: available in 400A and 630A rated versions for medium to current applications. Form factor: modular controller and switch assembly intended for panel or enclosure integration. Typical applications Commercial building backup: automatic supply transfer for lighting, HVAC, and service circuits to maintain business continuity during power outages. Industrial and manufacturing sites: transfer of production line and control equipment to generator supply to limit process interruptions. Remote sites and temporary power: reliable switching for construction sites, telecom shelters, or remote facilities using generator power as primary or backup supply. Installation and operation notes Intended for integration into distribution panels or enclosures by a qualified electrical technician. Match the unit rating to the installed load current and verify compatibility with existing generator control interfaces using AC220V control circuits. Follow standard electrical installation practices and local codes for safe connection and commissioning. Choose the correct rating Select the 400A or 630A version based on total load and system design requirements to ensure reliable transfer performance and proper coordination with upstream protective devices.