The FR-UK series, with over three decades of R&D experience from Kehua, is designed with Kehua's proprietary patented technology, catering to high user demands with a new generation of high-reliability and high-performance sine wave online power supply products. It features comprehensive functions, compact size, high efficiency, and easy operation, making it particularly suitable for harsh grid environments.

1. High-performance design:
●All-digital control, with higher control accuracy, stronger real-time performance, and high integration.
● Advanced DSP+MCU control, enhancing the overall intelligence level of the machine.
2. Reliability Design:
● Equipped with output isolation transformers to prevent the impact of output DC components on the load, lower the output zero-sequence voltage, meet the requirements of specific industries for zero-sequence voltage, and enhance the system's shock resistance capability.
● Online dual conversion structure design, ensuring the equipment operates safely.
● Wide input voltage and frequency range, reducing battery discharge opportunities, extending battery lifespan.
● Surge protection with lightning surge design, effective in special conditions;
3. Human-Centric Design
●Dual English/Chinese LCD display, capable of real-time showing UPS operational status and parameter information, facilitating user management of the UPS.
●LCD allows for flexible setup of working parameters.
●Real-time remaining battery capacity display for easy observation of battery operation status.
4. UPS Monitoring
● Remote SNMP Monitoring and Management Function; Provides Real-Time UPS Information;
● Features DC startup capability; UPS can start normally even without municipal power; automatic startup upon power restoration; comprehensive protection functions:
● Overload protection, over-temperature protection, short-circuit protection, and output over/under-voltage protection, with real-time protection functions to ensure the reliability of the UPS and prevent damage to the load equipment.
● Overcharge, over-discharge, and reverse polarity protection ensure battery safety and extend battery life.































