RDS3125D 4P Automatic Transfer Switch (ATS) Dual Power Generator with Control Panel and Circuit Breaker 63A 100A 125A C/D What this product does Automatically transfers power between utility supply and generator to maintain continuous operation of critical loads. Four pole design (4P) supports threephase systems plus neutral for stable, balanced switching. Builtin control panel provides automatic and manual operation modes for flexible control and straightforward commissioning. Key benefits Reliable continuity: Automatic switching reduces interruption time when the primary supply fails, keeping essential equipment running. Flexible protection: Compatible with circuit breaker ratings of 63A, 100A, and 125A; supports C and D trip curves for selectivity with different load types. Clear control and operation: Control panel simplifies mode selection and basic control functions, making operation accessible to electrical technicians. System compatibility: Designed to work with standard generator sets and utility mains in threephase installations. Space and wiring: Four pole configuration consolidates switching in a single unit, streamlining installation and wiring for threephase circuits. Important attributes Model: RDS3125D 4P Type: Automatic Transfer Switch for generator dual power applications Poles: 4P (threephase plus neutral) Circuit Breaker Ratings: 63A, 100A, 125A Trip Characteristics: C and D curve options Functionality: Automatic transfer, manual override via control panel Typical applications Commercial backup power: Maintain HVAC, lighting, and point of systems in retail and office buildings during utility outages. Construction and temporary power: Automatic switching for site power where a generator supplies heavyduty tools and machinery. Small industrial or manufacturing setups: Protect production lines and control systems by ensuring fast transfer to generator power with appropriate breaker selection. Why choose this model The RDS3125D 4P ATS combines automatic transfer capability, multiple breaker rating options, and a four pole design to provide a practical solution for threephase generator and mains switching needs. Its control panel supports clear operation and easy integration into existing electrical systems.