Model ATS320, Size ATS320DC Compact automatic transfer switch controller for one mains and one generator Overview The ATS320 controller provides automatic and manual control of a dual power transfer switch for applications with one mains supply and one generator. It monitors mains and generator voltages and frequencies, displays multiple fault conditions, and applies protective measures when the generator does not operate normally. Configuration is available from the front panel or via USB and PC. The unit features a compact modular design, simple wiring, and reliability for use across a wide range of power systems. Key benefits Reliable automatic transfer and protection: Detects abnormal generator operation and performs safe transfer or isolation actions to protect connected equipment. Clear, configurable monitoring: Front display shows mains and generator voltages and frequencies, switch status, operating mode, and runtime information for fast diagnosis. Flexible control and setup: Operate in automatic, manual, test, or shutdown modes; configure parameters on the front panel or via USB from a PC even when the controller is unpowered. Easy installation and maintenance: Module design with Europeanstyle connectors simplifies wiring, replacement, and servicing. Durable and fieldready: Standard waterproof rubber gasket delivers IP65 protection for panel installation. Main features 32bit performance microcontroller for fast, stable control Multilingual screen with Chinese and English options; additional languages configurable on request Displays mains voltage, mains frequency, generator voltage, generator frequency, switch status, work mode, total running time, total working time, and realtime status Supports automatic and manual operation; manual mode allows forcing the switch to open or close Compatible with AC systems including 3phase 4wire, singlephase 2wire, and 2phase 3wire Three relay outputs for control functions Two configurable switch inputs for external signaling USB port for parameter setting and realtime monitoring; parameters can be loaded without controller power via USB Comprehensive fault display and protection functions for the generator and ATS operation IP65 waterproof face with rubber gasket for panel protection Modular construction and European connectors for simplified installation and maintenance Technical highlights Model: ATS320 Size reference: ATS320DC Control modes: Automatic, Manual, Test, Shutdown Outputs: 3 relays Inputs: 2 configurable switch inputs Communication: USB for parameter setting and monitoring Display: Realtime values and status indicators for mains and generator parameters Protection: Multifault display and protection logic to prevent unsafe operation Typical applications Commercial backup power: Automatic transfer between utility mains and generator for small commercial buildings, retail outlets, and office spaces to maintain critical power with minimal intervention. Remote infrastructure and telecommunications: Reliable automatic switching and monitoring for remote sites that require unattended generator operation and clear fault reporting. Industrial and light manufacturing: Control and protect equipment that must switch to generator power during mains loss while ensuring safe generator operation and clear status monitoring. Operational notes All parameters can be adjusted via the front panel buttons or uploaded via USB using a PC. USB parameter upload is available even when the controller is not powered. The controller indicates ATS switch status through panel LEDs and provides combined fault and status displays for quick troubleshooting. Installation should follow system wiring standards for the supported AC configuration (3phase 4wire, singlephase 2wire, or 2phase 3wire). The ATS320 controller is designed to deliver dependable automatic transfer control, clear system visibility, and straightforward installation and maintenance for single mains and generator power systems.