China LMS1-GN Automatic Transfer Switch ATS 250A - Reliable Suppliers and Factory Solutions for Power Management

LMS1-GN double power automatic transfer switch is suitable for automatic transfer between two power sources in emergency power supply systems with rated working voltage of 400V and below, rated frequency of 50Hz, and rated current of 16A to 3200A, ensuring continuous, safe, and reliable operation of important loads (such as fire fighting loads).

Using dedicated integrated design, the intelligent controller is installed in the switch body to form a compact structure. Users only need to connect the main circuit, greatly reducing installation space, making wiring more convenient, and effectively improving installation efficiency.

Two three-phase power over-voltage, under-voltage, and lack-of-phase fault detection with real-time monitoring. Once abnormal power is detected, the system quickly makes a judgment and carries out corresponding operations, guaranteeing fire-fighting equipment power supply security.

Optional electric generator start/stop signal output function. Convenient for use with an electric generator — upon common power failure, the generator can be started in a timely manner to provide backup power for fire-fighting equipment, ensuring normal operation in emergencies.

Equipped with reliable mechanical interlock device and electrical interlock protection, completely eliminating the possibility of two circuit breakers closing simultaneously. Avoids serious faults such as short circuits caused by two power supplies at the same time, ensuring system security and stability.

The intelligent controller uses a monolithic integrated circuit as its control core — hardware is streamlined, functions are powerful, expansion is convenient, and reliability is high. It accurately detects power supply states, realizes intelligent dual-power conversion control, and allows free setting of conversion parameters such as overvoltage/undervoltage thresholds and switching delay time.