Double Power Automatic Transfer Switch 4P 400V 125A ATS Description This Double Power Automatic Transfer Switch combines automatic transfer functionality with an integrated electronic power circuit breaker. Designed for 4pole 400V threephase systems with a 125A rated current, it provides fast switching between two power sources while offering overcurrent interruption and circuit protection in a single modular device. Key benefits Reliable automatic switching: Automatically transfers load between primary and secondary power sources to maintain power continuity and reduce unplanned downtime. Fast transition: Quick switching minimizes interruption time for critical equipment and processes. Integrated protection: Builtin electronic circuit breaker function limits overload and shortcircuit effects without separate devices. Fourpole coverage: 4P configuration protects three phases plus neutral, suitable for balanced threephase loads. capacity: Rated for 400V systems at up to 125A, making it suitable for small to medium power distribution applications. Spaceefficient design: Modular form factor fits standard distribution panels and simplifies wiring compared with separate transfer and breaker components. Clear installation compatibility: Designed to interface with common standby power sources such as generators and UPS systems for automatic switchover. Function and performance highlights Automatic transfer switch function for two independent power inputs and a load output Integrated electronic power circuit breaker for interruption and configurable protection behavior where applicable Quick switching characteristic to reduce power interruption duration 4pole architecture for comprehensive phase and neutral control Rated voltage 400V and rated current 125A for reliable performance in threephase distribution systems Compatibility and installation Intended for 400V threephase distribution systems requiring automatic switchover Compatible with common standby power arrangements, including utility to generator and utility to UPS transfers Modular footprint suited for installation in standard switchboards and distribution cabinets Wiring points and terminals designed to accept typical conductor sizes used for up to 125A service Materials and build Built with a durable insulating enclosure and robust internal switching and breaker mechanisms designed for routine switching operations Modular 4pole construction supports secure mounting and straightforward electrical connection in distribution panels Practical use scenarios Commercial building backup: Automatically switch lighting, HVAC, and essential load circuits from utility to generator during utility outages to keep operations running. Light industrial or workshop environment: Maintain production continuity for motors and control systems by quickly transferring power to a standby generator while integrated breaker protection isolates faults. Remote facility or telecom site: Manage primary and secondary power inputs for equipment racks, ensuring rapid recovery when the main supply fails. What it solves Eliminates manual transfer delays and reduces downtime associated with power source changes Combines transfer switching and circuit protection to simplify panel design and reduce component count Provides reliable phase and neutral control for threephase loads up to 125A Technical summary Device type: Double power automatic transfer switch with electronic power circuit breaker Poles: 4P Rated voltage: 400V Rated current: 125A Application: Automatic switching between two power sources in threephase systems Choose this 4P 400V 125A ATS when you need a compact, integrated solution that pairs automatic transfer switching with electronic circuitbreaking capability for uninterrupted operation and simplified distribution panel design.