Detailed Product Description

KELONG ® brand KR33 series online UPS is the  high-performance sinewave UPS specially designed for data center and network computer room. Its high reliability has provided an important power protection for finance, communications, insurance, transport, taxation, military, securities, energy, education, government, manufacturing, business and other sectors.

KELONG ® brand KR33 series products are the true online double conversion UPS. By use of advanced power factor correction technology and SPWM inverter control technology of superior performance, they have extremly high input power factor and low input current harmonic distortion. They are the new generation green power devices.

Efficient and Energy saving

Digital DSP control

Intelligent Fan Speed Control 
Manual maintenance bypass design

Reliable Electromagnetic Compatibility

Multi-level protection to ensure safe operation of the system

Independent Patented no master adaptive parallel technology